• Speculation also exists about psychogenic amnesia due to its similarities with 'pure retrograde amnesia', as both share similar retrograde loss of memory. (wikipedia.org)
  • Also, although no functional damage or brain lesions are evident in the case of pure retrograde amnesia, unlike psychogenic amnesia it is not thought that purely psychological or 'psychogenic triggers' are relevant to pure retrograde amnesia. (wikipedia.org)
  • Psychological triggers such as emotional stress are common in everyday life, yet pure retrograde amnesia is considered very rare. (wikipedia.org)
  • Also the potential for organic damage to fall below threshold of being identified does not necessarily mean it is not present, and it is highly likely that both psychological factors and organic cause exist in pure retrograde amnesia. (wikipedia.org)
  • The case of pure retrograde amnesia. (bvsalud.org)
  • Regarding your question of a pure retrograde amnesia, this suggests the common plot device in movies and television stories where the victim suffers a head injury and suddenly forgets everything about their own pasts, including their identities. (blogspot.com)
  • Past literature has suggested psychogenic amnesia can be 'situation-specific' or 'global-transient', the former referring to memory loss for a particular incident, and the latter relating to large retrograde amnesic gaps of up to many years in personal identity. (wikipedia.org)
  • The most commonly cited examples of global-transient psychogenic amnesia are 'fugue states', of which there is a sudden retrograde loss of autobiographical memory resulting in impairment of personal identity and usually accompanied by a period of wandering. (wikipedia.org)
  • Diagnoses of psychogenic amnesia have dropped since agreement in the field of transient global amnesia, suggesting some over diagnosis at least. (wikipedia.org)
  • In addition, short-term memory lapses such as transient global amnesia lasting no more than 24 hours are known to occur. (scientificamerican.com)
  • Known as transient global amnesia, temporary memory loss might improve after an injury or illness. (specialtycareclinics.com)
  • This condition is known as transient global amnesia, now known to be associated with statin drug use. (newmediaexplorer.org)
  • Following a negative MRI the following day, the diagnosis of transient global amnesia was made. (newmediaexplorer.org)
  • Again the same doctors made the same diagnosis, transient global amnesia. (newmediaexplorer.org)
  • Transient global amnesia is characterized by sudden-onset anterograde and retrograde amnesia that typically lasts up to 24 hours. (msdmanuals.com)
  • The annual incidence of transient global amnesia is between 3.4 and 10.4/100 000. (msdmanuals.com)
  • Acute-onset amnesia: Transient global amnesia and other causes. (msdmanuals.com)
  • The etiology of transient global amnesia is not clear. (msdmanuals.com)
  • Transient epileptic amnesia (TEA) is defined as recurrent ictal and interictal transient memory disturbances typically occurring upon waking. (j-epilepsy.org)
  • We suggest that confinement of epileptic discharge to the non-dominant temporal lobe can lead to partial preservation of consciousness during seizure attacks that produce transient amnesia. (j-epilepsy.org)
  • Transient amnesia is a commonly encountered clinical manifestation with diverse causes. (j-epilepsy.org)
  • The most common cause of transient amnesia is transient global amnesia (TGA), which is characterized by the abrupt onset of anterograde amnesia without disturbances in other cognitive functions. (j-epilepsy.org)
  • 1 , 2 Transient epileptic amnesia (TEA) is a sub-type of mesial temporal lobe epilepsy characterized by recurrent episodes of transient memory disturbances. (j-epilepsy.org)
  • TEA closely resembles TGA because transient amnesia is sometimes the sole manifestation of the seizures. (j-epilepsy.org)
  • A 77-year-old right-handed man was admitted to our department with recurrent episodes of transient amnesia. (j-epilepsy.org)
  • Two days before admission, the patient experienced an episode of transient amnesia that began abruptly during breakfast. (j-epilepsy.org)
  • Many cases of amnesia are momentary, and this is referred to as transient global amnesia. (healthtian.com)
  • Cerebellar Hypoperfusion during Transient Global Amnesia: An MRI and Oculographic Study. (qxmd.com)
  • This type of amnesia may be caused by severe emotional stress, but in such cases, people almost always retain knowledge of who they are and of those with whom they are close. (scientificamerican.com)
  • How would a doctor diagnose retrograde amnesia and how would a patient act or think with this type of amnesia? (blogspot.com)
  • This will help your doctor quickly diagnose the type of amnesia you have and plan for a better way to manage the condition. (healthtian.com)
  • Psychogenic amnesia is the presence of retrograde amnesia (the inability to retrieve stored memories leading up to the onset of amnesia), and an absence of anterograde amnesia (the inability to form new long term memories). (wikipedia.org)
  • A 29-year-old female experienced the onset of dissociative amnesia during an academic trip to China. (medscape.com)
  • The amnesia persisted for nearly 10 months, until the feeling of blood on the woman's fingers triggered the recollection of events from the night of onset of dissociative amnesia, and, subsequently, other facts and events. (medscape.com)
  • It often occurs in individuals who are also affected by some other psychological nondissociative disorder, as in the case of a 19-year-old college student who was suffering from sleep deprivation at the onset of depersonalization disorder. (medscape.com)
  • This file contains the proximate will and testament of Jaime Amanda Fuller, to be delivered to her in the event of an onset of retrograde amnesia. (hypocritereader.com)
  • In addition to the mainly antegrade amnesia which characterized my first attack, this time I had a retrograde element all the way back to my high school days. (newmediaexplorer.org)
  • Dissociative amnesia was previously known as psychogenic amnesia, a memory disorder, which was characterized by sudden retrograde episodic memory loss, said to occur for a period of time ranging from hours to years to decades. (wikipedia.org)
  • For many years, I have taught courses in which the topic of "amnesia" comes up in at least a superficial way, and there are many different kinds of amnesia. (psychologytoday.com)
  • Basically, there are two kinds of amnesia. (blogspot.com)
  • Access to episodic memory can be impeded, while the degree of impairment to short term memory, semantic memory and procedural memory is thought to vary among cases. (wikipedia.org)
  • This argument, however, is less than cogent because we know today that partial amnesia can occur and that it can affect certain memory systems such as episodic memory (of events) while leaving semantic (factual) memory intact. (scientificamerican.com)
  • Someone with a significant traumatic brain injury, might have anterograde amnesia symptoms on a permanent basis. (blogspot.com)
  • Patients with Alzheimer's disease often suffer from anterograde amnesia symptoms, becoming less and less able to make new memories, and then moving into retrograde amnesia and losing past memories as well. (blogspot.com)
  • Such symptoms differ from those of retrograde amnesia, which might include forgetting information you already knew before the amnesia. (specialtycareclinics.com)
  • Anterograde amnesia tends to happen after you start experiencing some symptoms of the disease, like short-term memory loss. (specialtycareclinics.com)
  • This means that symptoms of anterograde amnesia could worsen over time. (specialtycareclinics.com)
  • Individuals diagnosed with Korsakoff's syndrome usually have symptoms of severe anterograde and retrograde amnesia, as well as confabulation. (englishgratis.com)
  • Typically, if that's the case, memories return and other symptoms dissipate as swelling in the brain goes down. (ncooleylaw.com)
  • In this report, we describe the interesting case of a patient with serum anti-SOX-1 antibodies and Crohn's Disease (CD) with ensuing neurological symptoms. (bvsalud.org)
  • These symptoms are different from symptoms of retrograde amnesia, which includes forgetting valuable information you already know before the amnesia. (healthtian.com)
  • The symptoms of anterograde amnesia manifest after a person's already experiencing memory loss. (healthtian.com)
  • This means that the symptoms of anterograde amnesia could get worse as time goes on. (healthtian.com)
  • Although affected persons may be as attentive and awake as ever, their access to previously acquired memories may be disturbed (retrograde amnesia). (scientificamerican.com)
  • Anterograde amnesia is the inability to form new memories, and it may result from damage to the hippocampus that has occurred through accident or disease. (psychologytoday.com)
  • Anterograde amnesia refers to the brain's inability to create new memories after a specific event or injury. (brainfitnessofflorida.com)
  • sometimes memories return while in other cases they may not. (brainfitnessofflorida.com)
  • Until recently it was emphasized that anterograde and retrograde memories are strongly linked so that a loss of the ability to form new memories is accompanied by an impairment in the retrieval of old memories. (uni-bielefeld.de)
  • In addition, case descriptions of so-called psychogenic amnesics, who have a selective inability to retrieve memories from their personal past, exist since long. (uni-bielefeld.de)
  • A patient with retrograde amnesia has lost memories or information from before the insulting event. (blogspot.com)
  • A patient with anterograde amnesia has trouble forming new memories or storing new information, and therefore loses information from after the insulting event. (blogspot.com)
  • This would be a mixture of anterograde and retrograde amnesia, as the patient would have lost memories from both before and after the event. (blogspot.com)
  • Anterograde amnesia can also interfere with social events as well as work due to the challenges of retaining or creating new memories. (healthtian.com)
  • In a change from the DSM-IV to the DSM-5, dissociative fugue is now subsumed under dissociative amnesia. (wikipedia.org)
  • These include dissociative amnesia (DA), dissociative identity disorder (DID), dissociative fugue, depersonalization/derealization disorder, and dissociative disorder not otherwise specified (DDNOS). (medscape.com)
  • [ 1 ] The previous entity of dissociative fugue has been incorporated into dissociative amnesia and is no longer a separate diagnosis. (medscape.com)
  • The type that perhaps comes to mind most quickly is the amnesia that accompanies a dissociative fugue state . (psychologytoday.com)
  • In a fugue state, people not only suffer from retrograde amnesia (an inability to recall the past), but they also have erased all biographical information from their memory. (psychologytoday.com)
  • Dissociative amnesia or psychogenic amnesia is a dissociative disorder "characterized by retrospectively reported memory gaps. (wikipedia.org)
  • Psychogenic amnesia is distinguished from organic amnesia in that it is supposed to result from a nonorganic cause: no structural brain damage should be evident but some form of psychological stress should precipitate the amnesia. (wikipedia.org)
  • Psychogenic amnesia as a memory disorder is controversial. (wikipedia.org)
  • If other memory processes are affected, they are usually much less severely affected than retrograde autobiographical memory, which is taken as the hallmark of psychogenic amnesia. (wikipedia.org)
  • However the wide variability of memory impairment among cases of psychogenic amnesia raises questions as to its true neuropsychological criteria, as despite intense study of a wide range of cases there is little consensus of which memory deficits are specific to psychogenic amnesia. (wikipedia.org)
  • Suspected cases of psychogenic amnesia have been heavily reported throughout the literature since 1935 where it was reported by Abeles and Schilder. (wikipedia.org)
  • There are many clinical anecdotes of psychogenic or dissociative amnesia attributed to stressors ranging from cases of child sexual abuse to soldiers returning from combat. (wikipedia.org)
  • The neurological cause of psychogenic amnesia is controversial. (wikipedia.org)
  • Some researchers have cautioned against psychogenic amnesia becoming a "wastebasket" diagnosis when organic amnesia is not apparent. (wikipedia.org)
  • Other researchers have hastened to defend the notion of psychogenic amnesia and its right not to be dismissed as a clinical disorder. (wikipedia.org)
  • H.J. Markowitsch, "Retrograde amnesia: Similarities between organic and psychogenic forms", NEUROLOGY PSYCHIATRY AND BRAIN RESEARCH , vol. 4, 1996, pp. 1-8. (uni-bielefeld.de)
  • Markowitsch, H.J.: Retrograde amnesia: Similarities between organic and psychogenic forms. (uni-bielefeld.de)
  • The most common is the post-traumatic amnesia, wherein the person can't remember the events immediately after the traumatic incident occurs. (jeffhurtblog.com)
  • Post-traumatic amnesia lasts for less than an hour in 6% of the cases, while 7% of those surveyed experienced memory loss for an hour to a day. (jeffhurtblog.com)
  • Sometimes, retrograde amnesia occurs following a blow to the head that results in the loss of events that occurred just prior to the injury, but the memory loss can be much more extensive and debilitating if there has been severe brain damage. (psychologytoday.com)
  • Finally, in severe cases, victims of accidents might dissociate, or mentally detach from the traumatic experience as a coping mechanism. (brainfitnessofflorida.com)
  • Moderate to severe injuries could lead to permanent amnesia. (specialtycareclinics.com)
  • But a less severe retrograde amnesia may be the presenting symptom. (msdmanuals.com)
  • These tests can help rule out other possible causes of the amnesia (eg, severe anemia, clotting disorders). (msdmanuals.com)
  • Lastly, retrograde amnesia is the inability to remember events before a traumatic head injury. (jeffhurtblog.com)
  • According to studies, there are less than 3% of traumatic head injury cases that suffer no memory loss at all. (jeffhurtblog.com)
  • The following fictional case study discusses possible interventions for restoring physical and cognitive function during an in-patient rehabilitation program of a 65-year old woman who presented with a traumatic brain injury (TBI) . (physio-pedia.com)
  • That can be the case if you suffered a traumatic brain injury (TBI). (ncooleylaw.com)
  • Painter v. American Family - Underinsured motorist case involving a mild traumatic brain injury. (indianalaw.com)
  • There are currently no treatments that could essentially cure amnesia, but instead, treatments concentrate on condition management. (specialtycareclinics.com)
  • Since amnesia is caused by brain damage caused by trauma, there are presently no treatments that can basically cure amnesia. (healthtian.com)
  • Failure to find an organic cause may result in the diagnosis that the amnesia is psychological, however it is possible that some organic causes may fall below a threshold of detection, while other neurological ails are thought to be unequivocally organic (such as a migraine) even though no functional damage is evident. (wikipedia.org)
  • For diagnosis of amnesia, the physician would primarily rely on the patient's history, as obtained by talking to the patient and his or her family and friends (if available), as well as simple tasks to evaluate the patient's ability to remember new things (such as giving the patient a string of numbers or a random trio of words to remember). (blogspot.com)
  • Published in: Neuropsychologia, Volume 110, February 2018, 134-147 Abstract "Autobiographical amnesia is found in patients with focal or diffuse brain damage ("organic amnesia"), but also without overt brain damage (at least when measured with conventional brain imaging methods). (escresearch.ca)
  • Published in: Neuropsychologia, Volume 110, February 2018, 92-103 Abstract "We investigated episodic future thinking (EFT) and future-based cognition and decision-making in patient SG, who developed a dense retrograde amnesiafollowing hypoxia due to a cardiac arrest. (escresearch.ca)
  • The patient showed slight paresis of the right leg, nystagmus, cognitive deficit, and retrograde amnesia. (cdc.gov)
  • During the above episodes, the patient's family did not observe any other cognitive dysfunction other than amnesia. (j-epilepsy.org)
  • It also causes cognitive damage that, in a surprising number of cases, is permanent. (blogspot.com)
  • Cognitive after-effects tend to fall into two categories: anterograde amnesia and retrograde amnesia. (blogspot.com)
  • There are many well-known cases of individuals who have experienced these types of amnesia, with one of the most famous being that of Clive Wearing , a gifted British musician who developed both profound anterograde and retrograde amnesia, resulting in a desperate existence. (psychologytoday.com)
  • For every case of amnesia, thousands of cases of extreme forgetfullness, incapacitating confusion and profound disorientation have been and are being reported. (newmediaexplorer.org)
  • Classically and traditionally, dissociative amnesia is seen as a disorder that causes retrograde amnesia in the autobiographical domain in the aftermath of incidents of major psychological stress or trauma. (escresearch.ca)
  • If you suffer retrograde amnesia, you might not remember the time between when you got back on your bike after stopping for coffee and when you found yourself lying on the ground. (ncooleylaw.com)
  • Some people suffer some amount of anterograde and retrograde amnesia after an accident. (ncooleylaw.com)
  • In reality, retrograde amnesia is typically limited to a relatively brief period immediately before whatever insult caused the loss of memory (which could be a brain injury-- either through head trauma, or oxygen deprivation, a seizure, drug and/or alcohol exposure, and any experience that could cause loss of consciousness). (blogspot.com)
  • The amnesia typically remits spontaneously but may recur. (msdmanuals.com)
  • Proactive amnesia is typically referred to as anterograde amnesia. (healthtian.com)
  • retrograde amnesia was the only clinical relevant remaining symptom by 6 months. (bvsalud.org)
  • Diffusion-weighted magnetic resonance imaging (DWI) in cases of TGA and ischemia demonstrates a high frequency of high signal intensities restricted to the hippocampus, and this has been proposed as an etiology of TGA. (qxmd.com)
  • Even in cases of organic amnesia, where there is lesion or structural damage to the brain, caution must still be taken in defining causation, as only damage to areas of the brain crucial to memory processing is possible to result in memory impairment. (wikipedia.org)
  • In a case of dissociative identity disorder, a woman who had been physically and sexually abused by her father throughout her childhood and adolescence exhibited at least 4 personalities as an adult. (medscape.com)
  • I have had a bike accident when I was younger that caused acute amnesia and it is certainly not fun at all having a slice of your life wiped from your memory. (bikeportland.org)
  • The purpose of this fictional case study is to explore the rehabilitation of an elderly woman with an acute TBI, post-surgical intervention. (physio-pedia.com)
  • CASE REPORT: A 42-year-old Caucasian woman, with no relevant past medical history, received a lumbar paravertebral injection of lidocaine, thiocolchicoside, and L-acetylcarnitine for persistent low back pain. (bvsalud.org)