Phantom Limb
Phantoms, Imaging
Amputees
Amputation Stumps
Paresthesia
Capgras Syndrome
Limb Buds
Galvanic Skin Response
Source of inappropriate receptive fields in cortical somatotopic maps from rats that sustained neonatal forelimb removal. (1/105)
Previously this laboratory demonstrated that forelimb removal at birth in rats results in the invasion of the cuneate nucleus by sciatic nerve axons and the development of cuneothalamic cells with receptive fields that include both the forelimb-stump and the hindlimb. However, unit-cluster recordings from primary somatosensory cortex (SI) of these animals revealed few sites in the forelimb-stump representation where responses to hindlimb stimulation also could be recorded. Recently we reported that hindlimb inputs to the SI forelimb-stump representation are suppressed functionally in neonatally amputated rats and that GABAergic inhibition is involved in this process. The present study was undertaken to assess the role that intracortical projections from the SI hindlimb representation may play in the functional reorganization of the SI forelimb-stump field in these animals. The SI forelimb-stump representation was mapped during gamma-aminobutyric acid (GABA)-receptor blockade, both before and after electrolytic destruction of the SI hindlimb representation. Analysis of eight amputated rats showed that 75.8% of 264 stump recording sites possessed hindlimb receptive fields before destruction of the SI hindlimb. After the lesions, significantly fewer sites (13.2% of 197) were responsive to hindlimb stimulation (P < 0.0001). Electrolytic destruction of the SI lower-jaw representation in four additional control rats with neonatal forelimb amputation did not significantly reduce the percentage of hindlimb-responsive sites in the SI stump field during GABA-receptor blockade (P = 0.98). Similar results were obtained from three manipulated rats in which the SI hindlimb representation was silenced temporarily with a local cobalt chloride injection. Analysis of response latencies to sciatic nerve stimulation in the hindlimb and forelimb-stump representations suggested that the intracortical pathway(s) mediating the hindlimb responses in the forelimb-stump field may be polysynaptic. The mean latency to sciatic nerve stimulation at responsive sites in the GABA-receptor blocked SI stump representation of neonatally amputated rats was significantly longer than that for recording sites in the hindlimb representation [26.3 +/- 8.1 (SD) ms vs. 10.8 +/- 2.4 ms, respectively, P < 0.0001]. These results suggest that hindlimb input to the SI forelimb-stump representation detected in GABA-blocked cortices of neonatally forelimb amputated rats originates primarily from the SI hindlimb representation. (+info)Beyond re-membering: phantom sensations of congenitally absent limbs. (2/105)
Phantom limbs are traditionally conceptualized as the phenomenal persistence of a body part after deafferentation. Previous clinical observations of subjects with phantoms of congenitally absent limbs are not compatible with this view, but, in the absence of experimental work, the neural basis of such "aplasic phantoms" has remained enigmatic. In this paper, we report a series of behavioral, imaging, and neurophysiological experiments with a university-educated woman born without forearms and legs, who experiences vivid phantom sensations of all four limbs. Visuokinesthetic integration of tachistoscopically presented drawings of hands and feet indicated an intact somatic representation of these body parts. Functional magnetic resonance imaging of phantom hand movements showed no activation of primary sensorimotor areas, but of premotor and parietal cortex bilaterally. Movements of the existing upper arms produced activation expanding into the hand territories deprived of afferences and efferences. Transcranial magnetic stimulation of the sensorimotor cortex consistently elicited phantom sensations in the contralateral fingers and hand. In addition, premotor and parietal stimulation evoked similar phantom sensations, albeit in the absence of motor evoked potentials in the stump. These data indicate that body parts that have never been physically developed can be represented in sensory and motor cortical areas. Both genetic and epigenetic factors, such as the habitual observation of other people moving their limbs, may contribute to the conscious experience of aplasic phantoms. (+info)Regulation of proprioceptive memory by subarachnoid regional anesthesia. (3/105)
BACKGROUND: Patient perception of limb position during regional anesthesia is frequently incorrect. The existing model ascribes this misperception, or phantom sensation, as a reversion to a fixed, slightly flexed, body schema. A model was developed to evaluate the influence of limb position changes on the incidence of incorrect or phantom sensations during regional anesthesia. METHODS: Forty American Society of Anesthesiologists physical status I-III adult patients undergoing genitourinary procedures under subarachnoid anesthesia were assigned to a lidocaine or bupivacaine treatment group and randomly assigned to one of four time groups (1, 4, 7, and 10 min). After blockade, patients were placed supine and blinded to limb positioning manipulations. One leg was flexed and the contralateral leg extended, with leg positions subsequently reversed at the assigned time point. At 10 min, patients were asked to identify the position of each leg. Percentage of incorrect response was analyzed using a logistic regression model with two independent variables: treatment and time. A supplemental study was undertaken to evaluate the observed difference in incorrect perceptions relative to flexed first versus extended limb first sequencing. RESULTS: The inability to perceive a change in limb position under regional anesthesia is dependent on the time after the block that the position change is initiated in relation to the onset characteristics of the local anesthetic. A phantom sensation of an extended leg position clearly exists. The flexed-first limb has a significantly higher incidence of incorrect or phantom perceptions. CONCLUSION: Proprioceptive memory involves a dynamic neuroplastic imprinting process that is influenced by limb or joint position prior to onset of regional anesthesia. This contrasts with previously held beliefs of a purely fixed body schema. (+info)Dissociation of anosognosia and phantom movement during the Wada test. (4/105)
OBJECTIVE: Patients who misperceive that they are moving their paralysed arm (phantom movements) may not recognise its weakness. Therefore, the relation between phantom limb movements and anosognosia for hemiplegia during selective right hemispheric anaesthesia (the Wada test) was examined. METHODS: Nine patients with intractable epilepsy underwent the Wada test. During the right hemispheric injection, after the onset of hemiparesis, anosognosia was assessed by asking patients if they were weak. The patient's vision was limited such that they could not see the position of their limbs. Phantom movements were tested for by asking patients to attempt to lift their left upper limb, and to demonstrate their left limb's position by placing their right limb in the same position as their left. Proprioception was tested by lifting the patient's paretic upper limb and having patients demonstrate this position by lifting their right limb to the same position. RESULTS: Three patients experienced left phantom limb movements, and five were anosognosic for their hemiplegia. However, phantom movement occurred in only one patient with anosognosia. The other two patients with phantom movement were without anosognosia. The patient with phantom movement and anosognosia had impaired proprioception. The two patients with phantom movement but without anosognosia had intact proprioception. CONCLUSIONS: Phantom movement in the presence of a proprioceptive deficit could contribute to anosognosia. However, anosognosia and phantom movement are dissociable; therefore phantom movement cannot alone account for anosognosia. Because phantom movement occurred with and without proprioceptive deficits, proprioceptive loss is not a prerequisite for phantom movement. (+info)Abnormalities in the awareness and control of action. (5/105)
Much of the functioning of the motor system occurs without awareness. Nevertheless, we are aware of some aspects of the current state of the system and we can prepare and make movements in the imagination. These mental representations of the actual and possible states of the system are based on two sources: sensory signals from skin and muscles, and the stream of motor commands that have been issued to the system. Damage to the neural substrates of the motor system can lead to abnormalities in the awareness of action as well as defects in the control of action. We provide a framework for understanding how these various abnormalities of awareness can arise. Patients with phantom limbs or with anosognosia experience the illusion that they can move their limbs. We suggest that these representations of movement are based on streams of motor commands rather than sensory signals. Patients with utilization behaviour or with delusions of control can no longer properly link their intentions to their actions. In these cases the impairment lies in the representation of intended movements. The location of the neural damage associated with these disorders suggests that representations of the current and predicted state of the motor system are in parietal cortex, while representations of intended actions are found in prefrontal and premotor cortex. (+info)Potentiation of sensory responses in the anterior cingulate cortex following digit amputation in the anaesthetised rat. (6/105)
The anterior cingulate cortex (ACC) is important for processing different types of information, including sensory inputs. In the present study on anaesthetised rats, we recorded in vivo sensory responses of the ACC to peripheral electrical shocks. Peripheral electrical stimulation at high intensities sufficient to activate nociceptive sensory fibres elicited EPSPs within the ACC. Digit amputation caused long-lasting potentiation of ACC responses to peripheral electrical stimulation. Evoked field EPSPs remained enhanced for at least 120 min after the amputation. Because electrical shocks were delivered to the normal hindpaw, it is likely that plastic changes occur centrally in the spinal cord or the supraspinal structures following amputation. We also recorded field EPSPs of the ACC in response to focal cortical stimulation within the ACC. Like the sensory responses, field EPSPs produced by focal cortical stimulation within the ACC were potentiated after digit amputation, suggesting that long-lasting changes occurred locally within the ACC. Local blockade of peripheral activity by QX-314 at the amputated hindpaw 120 min after amputation did not significantly affect sensory responses induced within the ACC. Thus, peripheral ongoing inputs do not play an important role in maintaining potentiation within the ACC. Two pulses of hindpaw stimulation caused paired-pulse depression in the ACC. Local stimulation within the ACC also caused depression of sensory responses to hindpaw stimulation, suggesting that the population of synapses activated by local stimulation may overlap with that activated by peripheral hindpaw stimulation. Our results suggest that rapid enhancement of sensory responses can be observed in the ACC after amputation and that enhanced neuronal responses to subsequent somatosensory stimuli may contribute to phantom-limb pain. (+info)Reorganization of motor and somatosensory cortex in upper extremity amputees with phantom limb pain. (7/105)
Phantom limb pain (PLP) in amputees is associated with reorganizational changes in the somatosensory system. To investigate the relationship between somatosensory and motor reorganization and phantom limb pain, we used focal transcranial magnetic stimulation (TMS) of the motor cortex and neuroelectric source imaging of the somatosensory cortex (SI) in patients with and without phantom limb pain. For transcranial magnetic stimulation, recordings were made bilaterally from the biceps brachii, zygomaticus, and depressor labii inferioris muscles. Neuroelectric source imaging of the EEG was obtained after somatosensory stimulation of the skin overlying face and hand. Patients with phantom limb pain had larger motor-evoked potentials from the biceps brachii, and the map of outputs was larger for muscles on the amputated side compared with the intact side. The optimal scalp positions for stimulation of the zygomaticus and depressor labii inferioris muscles were displaced significantly more medially (toward the missing hand representation) in patients with phantom limb pain only. Neuroelectric source imaging revealed a similar medial displacement of the dipole center for face stimulation in patients with phantom limb pain. There was a high correlation between the magnitude of the shift of the cortical representation of the mouth into the hand area in motor and somatosensory cortex and phantom limb pain. These results show enhanced plasticity in both the motor and somatosensory domains in amputees with phantom limb pain. (+info)Delayed onset and resolution of pain: some observations and implications. (8/105)
Occasionally, pain after disease or trauma develops only after a prolonged interval. Examples include late-onset pains which first occur months or years following a stroke, spinal cord lesion or amputation of a limb; a previously experienced pain that is recalled years later; and latent pain triggered for the first time by a further insult in the same area. Late-onset pains may develop gradually or suddenly, and may be brief or long standing. Pains which develop after an innocuous insult may be associated with slowly evolving sensory changes. However, even long-standing pains, particularly those of nociceptive origin, may resolve sometimes after many years. Resolution, which again can occur gradually or suddenly, may be spontaneous or follow development of another disorder or after therapeutic intervention. The duration of this pain relief can range from minutes to an indefinite period. These clinical phenomena, and the mechanisms, including genetic factors, subserving them, have been little studied. It is postulated that mechanisms implicated in acute pain may not be the same as those that subserve pain that develops after a long interval. Those late-onset pains which develop slowly after innocuous lesions may be associated with a variety of slow anatomical, physiological and biochemical changes. In late-onset pains that follow a painful insult, however, memory of the former pain and threshold triggering factors may be particularly important. Further studies of these neglected conditions may lead to understanding of as yet unknown processes subserving pain and to novel approaches to treatment. (+info)Phantom limb is a condition where an individual experiences sensations in a limb or appendage that has been amputated. These sensations can include feelings of pain, warmth, cold, itching, or tingling in the area where the limb used to be. The exact cause of phamtom limb is not fully understood, but it's believed to be related to mixed signals from the brain and nervous system.
Phantom limb sensations are relatively common among amputees, with some studies suggesting that up to 80% of individuals who have undergone an amputation may experience these sensations to some degree. While phantom limb can be a challenging condition to live with, there are various treatments available that can help manage the symptoms and improve quality of life. These may include medications, physical therapy, and alternative therapies such as acupuncture or mirror box therapy.
In the field of medical imaging, "phantoms" refer to physical objects that are specially designed and used for calibration, quality control, and evaluation of imaging systems. These phantoms contain materials with known properties, such as attenuation coefficients or spatial resolution, which allow for standardized measurement and comparison of imaging parameters across different machines and settings.
Imaging phantoms can take various forms depending on the modality of imaging. For example, in computed tomography (CT), a common type of phantom is the "water-equivalent phantom," which contains materials with similar X-ray attenuation properties as water. This allows for consistent measurement of CT dose and image quality. In magnetic resonance imaging (MRI), phantoms may contain materials with specific relaxation times or magnetic susceptibilities, enabling assessment of signal-to-noise ratio, spatial resolution, and other imaging parameters.
By using these standardized objects, healthcare professionals can ensure the accuracy, consistency, and reliability of medical images, ultimately contributing to improved patient care and safety.
An amputee is a person who has had a limb or extremity removed by trauma, medical illness, or surgical intervention. Amputation may affect any part of the body, including fingers, toes, hands, feet, arms, and legs. The level of amputation can vary from partial loss to complete removal of the affected limb.
There are several reasons why a person might become an amputee:
- Trauma: Accidents, injuries, or violence can result in amputations due to severe tissue damage or irreparable vascular injury.
- Medical illness: Certain medical conditions such as diabetes, peripheral arterial disease, and cancer may require amputation if the affected limb cannot be saved through other treatments.
- Infection: Severe infections that do not respond to antibiotics or other treatments may necessitate amputation to prevent the spread of infection.
- Congenital defects: Some individuals are born with missing or malformed limbs, making them congenital amputees.
Amputees face various challenges, including physical limitations, emotional distress, and social adjustment. However, advancements in prosthetics and rehabilitation have significantly improved the quality of life for many amputees, enabling them to lead active and fulfilling lives.
Amputation stumps, also known as residual limbs, refer to the remaining part of a limb after it has been amputated. The stump includes the soft tissue and bone that were once part of the amputated limb. Proper care and management of the amputation stump are essential for optimal healing, reducing the risk of complications such as infection or delayed wound healing, and promoting successful prosthetic fitting and use. This may involve various treatments such as wound care, pain management, physical therapy, and the use of specialized medical devices.
Traumatic amputation is the accidental or spontaneous separation of a limb or body part due to trauma or severe injury. This can occur as a result of motor vehicle accidents, industrial incidents, agricultural mishaps, or military combat, among other causes. The severed portion may or may not be recoverable for reattachment depending on various factors such as the extent of damage, ischemia time, and conditions during transportation. Immediate medical attention is required to control bleeding, manage shock, prevent infection, and initiate appropriate wound care and potential reconstructive surgery.
Amputation is defined as the surgical removal of all or part of a limb or extremity such as an arm, leg, foot, hand, toe, or finger. This procedure is typically performed to remove damaged or dead tissue due to various reasons like severe injury, infection, tumors, or chronic conditions that impair circulation, such as diabetes or peripheral arterial disease. The goal of amputation is to alleviate pain, prevent further complications, and improve the patient's quality of life. Following the surgery, patients may require rehabilitation and prosthetic devices to help them adapt to their new physical condition.
Paresthesia is a medical term that describes an abnormal sensation such as tingling, numbness, prickling, or burning, usually in the hands, feet, arms, or legs. These sensations can occur without any obvious cause, often described as "pins and needles" or falling asleep in a limb. However, persistent paresthesia can be a sign of an underlying medical condition, such as nerve damage, diabetes, multiple sclerosis, or a vitamin deficiency. It is important to consult with a healthcare professional if experiencing persistent paresthesia to determine the cause and appropriate treatment.
Capgras Syndrome is a rare disorder in which a person believes that a close friend or family member has been replaced by an imposter who is identical to the original. This delusion is also known as "impostor syndrome" or " Capgras' delusion." It is named after Joseph Capgras, a French psychiatrist who first described this condition in 1923.
People with Capgras Syndrome are typically able to recognize the physical features of their loved ones, but they claim that the person's inner essence or identity has been replaced by an imposter. They may believe that the impostor is a duplicate, a robot, or an alien, and they often become agitated or suspicious when confronted with their loved one's presence.
The exact cause of Capgras Syndrome is not known, but it is thought to be related to brain damage or dysfunction in certain areas of the brain that are involved in face recognition and emotional processing. It can occur as a result of various neurological conditions, such as dementia, stroke, epilepsy, or head injury, or it can be a symptom of certain psychiatric disorders, such as schizophrenia.
Treatment for Capgras Syndrome typically involves a combination of medication and psychotherapy to address the underlying cause of the disorder. Antipsychotic medications may help reduce delusional thinking, while cognitive-behavioral therapy can help individuals learn to cope with their symptoms and improve their relationships with loved ones.
In medical terms, the arm refers to the upper limb of the human body, extending from the shoulder to the wrist. It is composed of three major bones: the humerus in the upper arm, and the radius and ulna in the lower arm. The arm contains several joints, including the shoulder joint, elbow joint, and wrist joint, which allow for a wide range of motion. The arm also contains muscles, blood vessels, nerves, and other soft tissues that are essential for normal function.
Limb buds are embryological structures that develop in the early stages of fetal growth and give rise to future limbs. In humans, they appear around the 4th week of gestation as thickenings on the sides of the body trunk. These buds consist of a core of mesenchymal tissue surrounded by ectoderm. The mesenchyme will later differentiate into bones, muscles, tendons, ligaments, and cartilages, while the ectoderm will form the skin and nervous tissues, including sensory organs in the limbs.
The development of limb buds is regulated by a complex interplay of genetic and molecular factors that control their outgrowth, patterning, and differentiation into specific limb components. Abnormalities during this process can lead to various congenital limb defects or deformations.
Galvanic Skin Response (GSR), also known as Electrodermal Activity (EDA), is a physiological response that reflects the activation of the sympathetic nervous system. It measures changes in the electrical properties of the skin, which are influenced by the sweat gland activity. GSR is often used as an indicator of emotional arousal or psychological stress in various research and clinical settings.
Skin temperature is the measure of heat emitted by the skin, which can be an indicator of the body's core temperature. It is typically lower than the body's internal temperature and varies depending on factors such as environmental temperature, blood flow, and physical activity. Skin temperature is often used as a vital sign in medical settings and can be measured using various methods, including thermal scanners, digital thermometers, or mercury thermometers. Changes in skin temperature may also be associated with certain medical conditions, such as inflammation, infection, or nerve damage.
I'm sorry for any confusion, but "imagnation" is not a term typically used in medical definitions. Imagination generally refers to the ability to form mental images or concepts of things that are not present or have never been experienced. It involves the cognitive process of creating new ideas, scenarios, or concepts from existing knowledge and experiences.
However, if you meant to ask for a medical term related to imagination, one possibility could be "**productive thinking**" or **"generative cognitive processes"**. These terms are used in neuropsychology and cognitive science to describe the mental activities involved in creating new ideas, problem-solving, and generating novel responses.
If you had something specific in mind or if there's a different context you'd like me to consider, please provide more information, and I will do my best to help.
Pain is an unpleasant sensory and emotional experience associated with actual or potential tissue damage, or described in terms of such damage. It is a complex phenomenon that can result from various stimuli, such as thermal, mechanical, or chemical irritation, and it can be acute or chronic. The perception of pain involves the activation of specialized nerve cells called nociceptors, which transmit signals to the brain via the spinal cord. These signals are then processed in different regions of the brain, leading to the conscious experience of pain. It's important to note that pain is a highly individual and subjective experience, and its perception can vary widely among individuals.
Phantom limb
Phantom Limb (album)
Phantom limb (disambiguation)
Supernumerary phantom limb
Phantom Limb (The Shins song)
Phantom Limb (Alice in Chains song)
The Phantom Limbs
Vainly Clutching at Phantom Limbs
Phantom Limbs: Selected B-Sides
Jane Huffman
Mit Borrás
Gregory Loselle
Janet Sternburg
Silas Weir Mitchell (physician)
Neuroplasticity
Phantom eye syndrome
Sophie Hunter
Stump sock
The Shins discography
Pig Destroyer
Geoffrey Ling
Pain disorder
Animal (Lump album)
Calcitonin
Ellen Driscoll
JMSN
Phantom pain
Limbs Dance Company
Body image disturbance
Star Wars: C-3PO
16-17
Residual limb12
- During PME treatment, electrodes attached to the patient's residual limb pick up electrical signals intended for the missing limb, which are then translated through AI algorithms, into movements of a virtual limb in real time. (eurekalert.org)
- Dr Max Ortiz Catalan developed Phantom Motor Execution (PME) as a treatment for phantom limb pain, in which phantom movements are decoded from the residual limb using machine learning, and then visualised via virtual and augmented reality. (eurekalert.org)
- It's not uncommon for an amputee to experience residual limb sensation, also known as phantom limb pain. (allenorthopediclabs.com)
- At the same time, small electrodes are placed on the residual limb, known as the stump. (spinalsurgerynews.com)
- This pain may be related to a certain position or movement of the phantom and may be elicited or exacerbated by a range of physical factors (e.g., changes in weather or pressure on the residual limb) and psychological factors (e.g., emotional stress). (painmanagementcenterinc.com)
- About 30% of persons with amputation report the feeling of telescoping, i.e., the retraction of the phantom towards the residual limb and in many cases, the disappearance of the phantom into the limb. (painmanagementcenterinc.com)
- This pain is referred to as residual-limb or stump pain. (painmanagementcenterinc.com)
- However, abnormal input originated from a neuroma in the residual limb may increase the amount of central reorganization, enhancing the chance of phantom-limb pain. (painmanagementcenterinc.com)
- After an amputation, over 70% of people have pain in the residual limb (stump), which can severely limit function, impair quality of life, and significantly impede rehabilitation. (msdmanuals.com)
- Residual-limb pain should be evaluated and treated aggressively, because some causes can be dangerous. (msdmanuals.com)
- Other symptoms of neuroma include unusual and unpleasant sensations that occur without stimulation or upon contraction of residual-limb muscles and a disagreeable sensation (dysesthesia) that occurs with light palpation of skin. (msdmanuals.com)
- Liners made of heat-non-conducting materials may cause sweating of the residual limb and may result in liners slipping off the skin surface especially on a warm day or during high activity, causing skin breakdown and affecting limb health. (bvsalud.org)
Sensation13
- A phantom limb is the sensation that an amputated or missing limb is still attached. (wikipedia.org)
- However, only a small percentage will experience painful phantom limb sensation (phantom pain). (wikipedia.org)
- Phantom limb is a phantom sensation in amputated or missing limbs. (sciencedaily.com)
- Any sensation the limb could have experienced before it's removal it can be experienced after. (painscale.com)
- Direct Nerve Stimulation for Induction of Sensation and Treatment of Phantom Limb Pain provides an overview of research, experiences and results for the design, development and test of hardware and software components, and the ambition to safely implant and evaluate a novel neural interface system to combat phantom limb pain in an amputee volunteer subject. (riverpublishers.com)
- What Is Phantom Limb Sensation? (scienceabc.com)
- A phantom limb sensation is a sensation that feels as though it is coming from the lost limb of amputees. (scienceabc.com)
- Amputees may feel a pain, an itch, or any other sensation in the non-existent limb, as if it is still present and attached. (scienceabc.com)
- Often, the sensation of pain in a limb that no longer exists can be puzzling. (phantomlimb.org)
- Many individuals who have undergone an amputation experience some degree of phantom limb sensation or phantom limb pain. (reachops.com)
- Examines the neurological and psychological aftereffects of Jake's wound, concentrating on the phenomenon of phantom limb sensation on his conflicted sexuality. (stthomas.edu)
- Almost every amputee experiences the sensation that the amputated limb is still present. (independencepo.com)
- By stimulating the stump with tiny electrical impulses, researchers try to recreate the sensation of the phantom hand. (spinalsurgerynews.com)
Amputee6
- The amputee may feel very strongly that the phantom limb is still part of the body. (wikipedia.org)
- InMotion magazine is a publication of the Amputee Coalition, the nation's leading organization on limb loss. (boisestate.edu)
- The technique has been tested on a male amputee that has continued to suffer from phantom limb pain for 48 years. (labmate-online.com)
- however, this amputee developed intensive phantom limb pain which persisted at 6 months. (lookfordiagnosis.com)
- nurses caring for people with phantom limb pain have a unique role to play in the overall holistic therapy of the amputee. (lookfordiagnosis.com)
- RH was significantly attenuated (p = 0.0002) and perceived sweating, as reported by prosthesis users, improved (p = 0.028) with VS, patient-reported comprehensive lower limb amputee socket survey (CLASS) outcomes to determine the suspension, stability, and comfort were not significantly different between VS and nVS. (bvsalud.org)
Pain87
- Research continues to explore the underlying mechanisms of phantom limb pain (PLP) and effective treatment options. (wikipedia.org)
- Phantom limb pain is usually intermittent, but can be continuous in some cases. (wikipedia.org)
- Maladaptive changes in the cortex may account for some but not all phantom limb pain. (wikipedia.org)
- Pain researchers such as Tamar Makin (Oxford) and Marshall Devor (Hebrew University, Jerusalem) argue that phantom limb pain is primarily the result of "junk" inputs from the peripheral nervous system. (wikipedia.org)
- Despite a great deal of research on the underlying neural mechanisms of phantom limb pain there is still no clear consensus as to its cause. (wikipedia.org)
- In phantom limb syndrome, there is sensory input indicating pain from a part of the body that is no longer existent. (wikipedia.org)
- Perineural catheters that provide local anesthetic agents have poor evidence of success when placed after surgery in an effort to prevent phantom limb pain. (wikipedia.org)
- Phantom limb pain is a poorly understood phenomenon, in which people who have lost a limb can experience severe pain, seemingly located in that missing part of the body. (eurekalert.org)
- He proposes that after an amputation, neural circuitry related to the missing limb loses its role and becomes susceptible to entanglement with other neural networks - in this case, the network responsible for pain perception. (eurekalert.org)
- Through a principle known as 'Hebb's Law' - 'neurons that fire together, wire together' - neurons in the sensorimotor and pain perception networks become entangled, resulting in phantom limb pain. (eurekalert.org)
- Max Ortiz Catalan's new theory could help unravel some of the mysteries surrounding phantom limb pain, and offer relief for some of the most affected sufferers. (eurekalert.org)
- The fact that people in this study with PLP [phantom limb pain] also had more depression doesn't mean that having depression will increase your likelihood to develop PLP," she said. (medpagetoday.com)
- Unfortunately, treatment for phantom limb pain has limited effectiveness and is focused on symptomatic control through over-the-counter pain medications, narcotics, and antidepressant medications that can relieve pain to damaged nerves," he explained. (medpagetoday.com)
- Comparing the phantom sound of tinnitus with the phantom pain of an amputated limb echoes O'Brien's reporting for PBS NewsHour in 2013 on tinnitus: "They were comparing the [tinnitus] research to analogies of phantom limb pain because there's this missing patch in your brain [for hearing sound] and your brain is trying to fill in the gaps," he explains. (ata.org)
- The article listed ten techniques to treat and alleviate phantom limb pain, which is the pain an individual experiences from a part of the body that is no longer physically connected to the body. (boisestate.edu)
- Evans listed well-known and popular pain management methods such as massage, acupuncture and chiropractic therapy, but she also described lesser-known trends like mirror therapy, which uses a mirror box to project an image of the intact limb. (boisestate.edu)
- Other treatments she noted in the article include wearing silver shrinker socks and using magnets to increase blood flow to decrease burning sensations associated with phantom limb pain. (boisestate.edu)
- Love and narcissism intermix to concoct a phantom pain that targets an absent beloved as one's own bodypart. (w-h-s.fi)
- Garner does a fine job cultivating the book's titular theme, with Dara's phantom-limb pain, Otis's grief-filled memories, and Meg's PTSD. (politics-prose.com)
- A treatment for patients that have had limbs amputated and now suffer from phantom limb pain has been devised to ease discomfort and improve quality of life. (labmate-online.com)
- Around 70 per cent of amputees suffer from pain in the missing limb, causing great discomfort. (labmate-online.com)
- Phantom limb pain can be a very serious issue, with large impacts on peace of mind and quality of life. (labmate-online.com)
- Chalmers University of Technology in Sweden has used a new method with the aim of reducing pain and discomfort in missing limbs. (labmate-online.com)
- He has never before experienced no pain in his missing limb, even after undergoing treatments that are currently widely used. (labmate-online.com)
- It is not a feeling that the limb or amputated tissue is still there, but pain from it the limb or amputated tissue. (painscale.com)
- Phantom limb pain can be aggravated by stress, anxiety, fear or fatigue. (painscale.com)
- electroconvulsive therapy for phantom limb pain. (lookfordiagnosis.com)
- phantom limb pain is common in amputees . (lookfordiagnosis.com)
- In one case, phantom pain was still in remission 3.5 years after ECT. (lookfordiagnosis.com)
- phantom limb pain: a report of two cases. (lookfordiagnosis.com)
- The efficacy of pre-emptive analgesia for phantom limb pain is still unclear. (lookfordiagnosis.com)
- It is generally accepted that pre hyphen;amputation pain increases the incidence of phantom and stump pain, even if pre-emptive analgesia is performed before and during surgery and in the postoperative period . (lookfordiagnosis.com)
- Two cases of traumatic upper limb amputations are described here with no pre-existing pain. (lookfordiagnosis.com)
- The intensity of phantom limb pain in case 2 decreased significantly after 6 months, even though brachial plexus blockade was not started until 5 weeks post-trauma. (lookfordiagnosis.com)
- A combination of relevant risk factors such as a painful neuroma , behavioural and cognitive coping strategies and the early functional use of prostheses are discussed as important mechanisms contributing to the development of phantom pain and cortical reorganization. (lookfordiagnosis.com)
- phantom limb pain is increasingly perceived as a complex condition that is likely to have multifactorial causes. (lookfordiagnosis.com)
- 68% of the amputees (19 out of 28) had phantom limb pain. (lookfordiagnosis.com)
- Some amputees feel pain and discomfort stemming from their lost limb, a condition called phantom limb pain, but how can you treat pain in a non-existent limb? (scienceabc.com)
- Phantom Limb Pain (PLP) is a complex experience. (phantomlimb.org)
- For many people, adjusting to life with Phantom Limb Pain (PLP) is a challenging journey, interspersed with physical discomfort and emotional turbulence. (phantomlimb.org)
- Phantom Limb Pain (PLP) is a phenomenon that can be perplexing to those who've never experienced it. (phantomlimb.org)
- For those living with it, the sensations of pain, itching, or discomfort in a limb that isn't physically there can be both emotionally and physically taxing. (phantomlimb.org)
- Navigating the world of caregiving can be challenging, especially when your loved one is battling a condition as unique and often misunderstood as Phantom Limb Pain (PLP). (phantomlimb.org)
- PLP is a phenomenon where individuals feel pain, itching, or other sensations in a limb that is no longer there. (phantomlimb.org)
- In a world brimming with rapidly evolving medical knowledge, it's both surprising and disheartening to realise how much misunderstanding surrounds Phantom Limb Pain (PLP). (phantomlimb.org)
- PLP, a condition experienced by amputees where pain is felt in a limb that no longer exists, has been a topic of intrigue, misunderstanding, and unfortunately, stigma. (phantomlimb.org)
- Navigating the journey of Phantom Limb Pain (PLP) can be a challenging ordeal. (phantomlimb.org)
- When you're handed a diagnosis of Phantom Limb Pain (PLP), it can be an overwhelming moment filled with a whirlwind of emotions and questions. (phantomlimb.org)
- Phantom Limb Pain (PLP) is a unique condition that, while invisible to onlookers, can be immensely challenging for those experiencing it. (phantomlimb.org)
- Living with Phantom Limb Pain (PLP) is a journey of continuous adaptation. (phantomlimb.org)
- Phantom limb pain is the feeling that the amputated body part is still there. (allenorthopediclabs.com)
- Phantom limb pain is caused by the series of connected nerve pathways from each area of the body to the brain. (allenorthopediclabs.com)
- It's no fun living with phantom pain, and while there's no single solution for getting rid of it, there are several ways to reduce and relieve it. (allenorthopediclabs.com)
- Allen Orthopedic Labs encourages patients to treat phantom limb pain by envisioning the limb and firing the muscles in that limb. (allenorthopediclabs.com)
- Have more questions about phantom limb pain? (allenorthopediclabs.com)
- Scientists are studying the therapeutic potential of psilocybin, the magic mushroom compound, for severe phantom limb pain. (cbdreview.info)
- There some reports of a correlation in the intensity of phantom limb syndrome considering how much preoperative pain someone experienced versus the cause of the amputation. (reachops.com)
- Ok, let's delve into the world of Spinal Cord Stimulation (SCS) - a futuristic approach that holds the promise of relief from phantom limb pain. (phantomlimb.org)
- Spinal Cord Stimulation might just be a bit of a game-changer for those suffering from Phantom Limb Pain. (phantomlimb.org)
- OBJECTIVE: The role of motor cortex reorganization in the development and maintenance of phantom limb pain (PLP) is still unclear. (mcmaster.ca)
- If a hand, an arm or a leg is amputated due to accident or disease, eight out of ten amputees experience phantom limb pain. (spinalsurgerynews.com)
- That is the most common conception of how phantom limb pain occurs," she says. (spinalsurgerynews.com)
- Tests have shown that phantom limb pain can be relieved if the brain is tricked into thinking that the amputated limb is still attached to the body. (spinalsurgerynews.com)
- Here, two out of three amputees felt their phantom limb pain ease whereas the third one experienced a decrease in the frequency of phantom limb pain attacks. (spinalsurgerynews.com)
- Weir Mitchell coined the term phantom-limb pain in 1872. (painmanagementcenterinc.com)
- Pain in the phantom is often similar to the pain felt in the limb before amputation. (painmanagementcenterinc.com)
- Phantom pain is most common after the amputation of an arm or leg, but it may also occur after the surgical removal of other body parts, such as breast, rectum, penis, testicle, eye, tongue, or teeth. (painmanagementcenterinc.com)
- Recent evidence suggests that telescoping is associated with more phantom-limb pain. (painmanagementcenterinc.com)
- Phantom-limb pain is commonly confused with pain in the area adjacent to the amputated body part. (painmanagementcenterinc.com)
- Patients may report severe, knife stabbing or sharp pain in at the end of the amputated limb. (painmanagementcenterinc.com)
- However, stump pain may coexist with phantom limb pain. (painmanagementcenterinc.com)
- Changes along the neuroaxis may contribute to the experience of phantom-limb pain. (painmanagementcenterinc.com)
- Supraspinal changes related to phantom-limb pain involve the brainstem, the thalamus, and the cortex. (painmanagementcenterinc.com)
- Studies in human amputees have shown that reorganizational changes also occur at the thalamic level and are closely related to the perception of phantom limbs and phantom-limb pain. (painmanagementcenterinc.com)
- Neuroma in the stump may be more responsible for stump pain than phantom limb pain. (painmanagementcenterinc.com)
- Psychological factors also play a role in the modulation of phantom-limb pain. (painmanagementcenterinc.com)
- Phantom-limb pain may also be exacerbated by stress. (painmanagementcenterinc.com)
- Patients who lack coping strategies, fear the worst, or receive less social support, tend to report more phantom-limb pain. (painmanagementcenterinc.com)
- Treatment for phantom limb pain has been difficult. (painmanagementcenterinc.com)
- Although tricyclic antidepressants and sodium-channel blockers are treatments of choice for neuropathic pain, there have been no controlled studies of these agents for phantom-limb pain. (painmanagementcenterinc.com)
- Opioids, calcitonin, and ketamine have been proven to be effective in reducing phantom-limb pain in controlled studies. (painmanagementcenterinc.com)
- Transcutaneous nerve stimulation (TENS) may have a minor effect on phantom-limb pain. (painmanagementcenterinc.com)
- Use of a myoelectric prosthesis may alleviate cortical reorganization and phantom-limb pain. (painmanagementcenterinc.com)
- Deep brain stimulation also has been reported to treat phantom limb pain. (painmanagementcenterinc.com)
- The pain typically does not involve the phantom limb but can. (msdmanuals.com)
- [ 11 ] Also, a 20-year literature review found evidence that revealed long-term safety and efficacy of SCS in FBSS, CRPS, peripheral neuropathy, and severe ischemic limb pain secondary to peripheral vascular disease. (medscape.com)
- They address persisting pain in children caused by conditions such as cancer, HIV/AIDS, sickle-cell disease, burns, trauma, and phantom limb pain. (bvsalud.org)
Believing that the amputated limb1
- The idea is to trick the brain into believing that the amputated limb is whole and healthy," Evans explained in the article. (boisestate.edu)
Sensations12
- Approximately 80-100% of individuals with an amputation experience sensations in their amputated limb. (wikipedia.org)
- Most (80-100%) amputees experience a phantom limb, with some of them having non-painful sensations. (wikipedia.org)
- Repressed memories in phantom limbs could potentially explain the reason for existing sensations after amputation. (wikipedia.org)
- Hearing about these results, Vilayanur S. Ramachandran hypothesized that phantom limb sensations in humans could be due to reorganization in the human brain's somatosensory cortex. (wikipedia.org)
- However, we also know that people experience phantom sensations from amputated body parts, to the extent that someone asked to move a finger can 'feel' that movement. (ibtimes.co.uk)
- The researchers from Oxford's Hand and Brain Lab used a high-power MRI scanner to examine the brain activity in two people who had lost their left hand through amputation 25 and 31 years ago respectively, but who still experienced vivid phantom sensations, as well as 11 people who had both hands and were also right-handed. (ibtimes.co.uk)
- It can result in a number of different sensations in people's missing limbs, such as shooting pains, burning, aches, cramping or sharp pains. (labmate-online.com)
- The procedure traumatically alters the body image, but often leaves sensations that refer to the missing body part, the phantom limb. (riverpublishers.com)
- Some sensations that we feel can be "phantoms" in the sense that they may be illusory or not real. (scienceabc.com)
- Due to this, many amputees report that touching their face gives them sensations from a "phantom" arm, as if the lost limb were still there! (scienceabc.com)
- Thus, the culprit for these phantom pains is the ever-changing brain maps that confuse our sensations. (scienceabc.com)
- Phantom sensations are different for everyone and should not present any problems to prosthetic fittings. (independencepo.com)
Lower limb amputees3
- RESULTS: We included 62 unilateral traumatic lower limb amputees with a mean PLP of 5.9 (SD = 1.79). (mcmaster.ca)
- This study aimed to explore the experiences and needs of lower limb amputees for social and psychological adjust- ment in Saudi Arabia, according to their own perspective. (who.int)
- ences of lower limb amputees within their community. (who.int)
Upper-limb amputations1
- 1, 2021 Researchers have engineered a bionic arm for patients with upper-limb amputations that allows wearers to think, behave and function like a person without an amputation, according to new findings. (sciencedaily.com)
20212
- Oct. 5, 2021 A new study gives insight into how limb development evolved in vertebrates. (sciencedaily.com)
- Aug. 18, 2021 Researchers have developed a new strategy that could offer much more precise control of prosthetic limbs. (sciencedaily.com)
Syndrome5
- Amputees with psychiatric and medical conditions are much more likely to experience phantom limb syndrome (PLS), according to a retrospective cohort study. (medpagetoday.com)
- Providers should anticipate and prepare to treat comorbid mental and physical health disorders that may develop in tandem with phantom limb syndrome," he added, noting that PLS itself is not considered a mental illness. (medpagetoday.com)
- Future studies should be conducted to appreciate if pre-amputation counseling and treatment for psychiatric conditions can prevent the occurrence of phantom limb syndrome and post-amputation depression or anxiety," he said. (medpagetoday.com)
- One area for our future database research is to answer the question of which comes first, psychiatric comorbidity or phantom limb syndrome. (medpagetoday.com)
- Hogan W, et al "Psychiatric and medical comorbidities associated with phantom limb syndrome in amputees" AAOS 2022. (medpagetoday.com)
Patients8
- Specifically, there have been several reports from patients of painful clenching spasms in the phantom hand with the feeling of their nails digging into their palms. (wikipedia.org)
- But in patients with a missing limb, such event could stand out when little else is going on at the same time. (eurekalert.org)
- Acupuncture is also an option, and another type of therapy uses mirrors to trick patients into thinking that missing limbs are still there. (medpagetoday.com)
- It is concluded that phantom limb patients who are refractory to multiple therapies may respond to ECT. (lookfordiagnosis.com)
- Thirteen patients with lower limb amputation (mean age 47 years) were recruited from a large rehabilitation centre in Saudi Arabia for participation in interviews. (who.int)
- Facilitating the re-integration of patients with lower limb amputation patients into their communities, as well as providing the required support system, is crucial to ensure a healthy adjustment process for amputees. (who.int)
- Most patients who experience limb amputation may add to its consequences ( 12 ). (who.int)
- Effect of Phantom Exercise, Transcutenous Electrical Nerve Stimulation on Selected outcome measures of Patients with Lower Limb Amputation. (who.int)
Prosthetic limbs1
- This would remove a barrier to neuro-prosthetics - prosthetic limbs controlled directly by the brain - the assumption that a person would lose the brain area that could control the prosthetic. (ibtimes.co.uk)
Reorganization1
- During many time, we believed that the cause of the phantom limb feeling was psychic, but nowadays we know that this phenomenon is related to a physiological cause as well, whit the cortical reorganization, that consist in structural modifications in topographic representation of the cortical maps. (bvsalud.org)
Stimulation1
- Anesko argues that Jake's phantom member can experience stimulation, thus leaving him in a bisexual limbo, unable to satisfy Brett but more accepting of a relaxed masculinity that opens a range of new kinds of masculine intimacy. (stthomas.edu)
Therapies1
- Solutions include non-invasive therapies, such as heat, cold, manual manipulation, TENS, acupuncture, and mirror therapy, which is where the patient watches in a mirror while receiving physical therapy to revamp the brain's neural pathways so it registers that the limb is no longer there. (allenorthopediclabs.com)
20173
- Vella, a musician and producer himself, launched the Brighton-based imprint Phantom Limb in 2017, after completing an eight-year stint at FatCat Records. (carhartt-wip.com.sg)
- With "Weird jams since 2017" as its tagline, Phantom Limb's diverse musical output includes genres such as ambient, neo-classic, folk, hip hop, dub, electronic, as well as indie rock and minimal. (carhartt-wip.com.sg)
- Phantom Limb began in 2017, shortly after I left FatCat. (carhartt-wip.com.sg)
Prosthesis1
- Overview of Limb Prosthetics A limb prosthesis is an artificial limb that replaces a missing body part, usually because it has been amputated. (msdmanuals.com)
Paula Garner1
- Like most good summer reads, Phantom Limbs by Paula Garner is a delicious slow burn. (politics-prose.com)
20221
- June 27, 2022 Researchers have developed a virtual robotic limb system which can be operated by users' feet in a virtual environment as extra, or supernumerary, limbs. (sciencedaily.com)
Sensory1
- So… how does activity arise in the sensory region of a lost limb? (scienceabc.com)
Researchers1
- A new test devised by researchers at Aalborg University in Denmark shows that virtual reality technology can trick the amputee's brain into thinking that it is still in control of a missing limb. (spinalsurgerynews.com)
Experience1
- All of us here at Phantom Limb came from music, with many years of collective experience to lean on. (carhartt-wip.com.sg)
Psychological1
- Phantom Limb by Lucinda Berry is a very highly recommended psychological thriller, with a focus on the psychological. (shetreadssoftly.com)
Neuroma2
- For many years, the dominant hypothesis for the cause of phantom limbs was irritation in the peripheral nervous system at the amputation site (neuroma). (wikipedia.org)
- By the late 1980s, Ronald Melzack had recognized that the peripheral neuroma account could not be correct, because many people born without limbs also experienced phantom limbs. (wikipedia.org)
Movements2
- We wanted to look at the information underlying brain activity in phantom movements, to see how it varied from the brain activity of people moving actual hands and fingers. (ibtimes.co.uk)
- These movements were displayed on a screen, allowing the patient to see himself with the missing limb, allowing him to control its movement. (labmate-online.com)
Brain8
- Now I've got tinnitus and phantom limb, so I guess my brain is consistent," he says lightheartedly. (ata.org)
- Watching that non-painful limb perform progressive muscle relaxation fills the brain with positive images of a limb without injury. (boisestate.edu)
- You've surely heard of the phantom that terrorizes the residents of the Opera house, but have you heard of phantoms in the brain that torture amputees? (scienceabc.com)
- When a person loses a limb, they also lose all input from that limb to the brain. (scienceabc.com)
- However, the brain still retains the 'mini' map for the lost limb. (scienceabc.com)
- After losing a limb, the brain region corresponding to that lost limb, in some ways, becomes unused. (scienceabc.com)
- I enjoyed Phantom Limb a great deal and was initially going to give it my highest possible rating, but then, suddenly, a fact hit my brain and I had to go down at least 1/2 a star. (shetreadssoftly.com)
- As you remove a limb or a piece of the body, those pathways still exist, which confuses the brain because it's no longer getting input from that area. (allenorthopediclabs.com)
Content1
- Are you sure you want to report The Phantom Limbs for inappropriate content? (yahoo.com)
Surgical intervention1
- The amputation of a limb is a surgical intervention used as a last resort to remove irreparably damaged, diseased, or congenitally malformed limbs where retention of the limb is a threat to the well-being of the individual. (riverpublishers.com)
Supernumerary1
- 2. Varieties of supernumerary phantom limbs. (tusnoticias.online)
People1
- The researches about phantom limb begun with relates of people that suffered limb amputation or brachial plexus avulsion, and even in tetraplegic subjects that related the feeling of the lost or inactive limb, and many times these feelings were painful. (bvsalud.org)
20232
- May 18, 2023 An unexpected discovery about temperature feedback has led to new bionic technology that allows amputees to sense the temperature of objects ¬-- both hot and cold -- directly in the phantom hand. (sciencedaily.com)
- The mix also offers a glimpse into Phantom Limb's 2023, by including music from recent signings, as well as from those who have not been announced yet. (carhartt-wip.com.sg)