Psychophysiological measures are physiological measures (blood, heart rate, skin conductance, etc.) which change as part of ... When the user engages in a specific mental activity, it generates a unique brain electrical potential that is processed and ... Using TCD to monitor blood flow velocity in intercranial arteries, it was shown that a decrease in blood flow was associated ... Using an fMRI, mental workload can be quantified by an increase in cerebral blood flow in regions of the prefrontal cortex (PFC ...

Prolonged pressure can lead to a cascade of physiological changes in neural tissue. First, the blood-nerve barrier breaks down ... These areas process sensation through the median nerve. Numbness or tingling is usually worse with sleep. People tend to sleep ... For normohypertensive (normal blood pressure) adults, the average values for systolic blood pressure is 116mm Hg diastolic ... The critical pressure necessary to disrupt the blood supply of a nerve is approximately 30mm Hg below diastolic blood pressure ...

Packed red blood cells (pRBC) are red blood cells that have been donated, processed, and stored in a blood bank for blood ... Exposure of red blood cells to physiological levels of shear stress activates nitric oxide synthase and export of nitric oxide ... Erythropoiesis is the process by which new red blood cells are produced; it lasts about 7 days. Through this process red blood ... Blood can be given as a whole product or the red blood cells separated as packed red blood cells. Blood is often transfused ...

The technique quantifies true shunt, physiological dead space ventilation, ventilation versus blood flow (VA/Q) ratios, and ... Hypoxemia is generally attributed to one of four processes: hypoventilation, shunt (right to left), diffusion limitation, and ... inert gases in mixed venous blood, arterial blood, and expired gas of a subject. ... Moreover, a similar understanding exists for the relationship between the distribution of blood flow and the distribution of ...

... has physiological influences such as decreasing heart rate, increasing blood pressure, and increasing ... Expressive suppression has been found to occur late after the peripheral physiological response or emotion process is triggered ... We target situations for regulation by the process of selecting the situations we are exposed to or by modifying the situation ... The authors of this study support that expressive suppression has physiological, social, and cognitive costs. Some evidence ...

Nascent VLDL particles are released into the bloodstream via a process that depends upon apolipoprotein B-100. In the blood ... Under certain abnormal physiological conditions such as system infection or sepsis, the major components of HDL become altered ... Normal functioning HDL is able to prevent the process of oxidation of LDL and the subsequent inflammatory processes seen after ... In the blood stream, nascent chylomicron particles interact with HDL particles, resulting in HDL donation of apolipoprotein C- ...

Ventilation is the movement of gas during breathing, and perfusion is the process of pulmonary blood circulation, which ... Anatomically, the lung structure, alveolar organization, and alveolar capillaries contribute to the physiological mechanism of ... Then the deoxygenated blood returns to the heart via veins, and perfusion begins again after the blood is re-oxygenated through ... Pulmonary embolism is blood clots occurring in the lungs. Restricted blood flow in the pulmonary circulation results in alveoli ...

... is formed during physiological respiration when oxygen binds to the heme component of the protein hemoglobin in red blood cells ... This process occurs in the pulmonary capillaries adjacent to the alveoli of the lungs. The oxygen then travels through the ... "Blood Tests". National Heart, Lung, and Blood Institute (NHLBI). Archived from the original on 2019-04-09. Retrieved 2019-04-27 ... As a result, fetal blood in the placenta is able to take oxygen from maternal blood. Hemoglobin also carries nitric oxide (NO) ...

Angiogenesis is a process where tumors have their own blood supply in order to feed growing cancer cells. The alliinase ... The role of proteins as enzymes and/or hormones is imperative for cell function and physiological processes as simple as growth ... Slower digestion helps stabilize blood glucose levels and prevents spikes in blood sugar. Cancer is a disease with ... The "Western pattern diet" consists of high-fat, high-sugar, low-fiber meals with a surfeit of salt and highly processed food, ...

PIEZO1 and PIEZO2 channels have been shown to regulate additional important physiological processes including blood pressure, ...

Swelling-LTB4 makes the blood vessels more permeable. Plasma leaks out into the connective tissues, and they swell. The process ... Eicosanoids function in diverse physiological systems and pathological processes such as: mounting or inhibiting inflammation, ... and other blood vessels as well as on the kidney's reabsorption of sodium and water, and act to reduce blood pressure and ... blood flow to tissues, and/or blood pressure. However, their function and relevancy to human physiology and pathology have not ...

In humans, it is made in the liver, found mainly in blood plasma, and encoded by the BCHE gene. It is very similar to the ... Butyrylcholinesterase may be a physiological ghrelin regulator. Pseudocholinesterase deficiency results in delayed metabolism ... can be used as a liver function test as both hypercholinesterasemia and hypocholinesterasemia indicate pathological processes. ... Jasmin L (2013-05-28). "Cholinesterase - blood". University of Maryland Medical Center. Archived from the original on 2012-10- ...

For example, many homeostatic processes rely on negative feedback to control the concentration of substances in the blood; ... There exist an enormous number of physiological systems that involve or rely on the periodic behaviour of certain subcomponents ... Originally, they were used to model the variation in the relative quantity of mature cells in the blood. The equations are ... Glass, L. (2001). "Synchronization and rhythmic processes in physiology". Nature. 410 (6825): 277-84. Bibcode:2001Natur.410.. ...

... and is important to both physiological and pathological processes. Angiogenesis occurs through the formation of new vessels ... such as shear stress and blood flow. Corneal neovascularization is a condition where new blood vessels invade into the cornea ... leading to an abnormal proliferation of blood vessels between the areas of vascularized and avascular retina. These blood ... The complex process is initiated in response to local tissue ischemia or hypoxia, leading to the release of angiogenic factors ...

A subject's blood volume pulse (BVP) can be measured by a process called photoplethysmography, which produces a graph ... The four main physiological signs that are usually analyzed are blood volume pulse, galvanic skin response, facial ... There are other factors that can affect one's blood volume pulse. As it is a measure of blood flow through the extremities, if ... The surface of the human face is innervated with a large network of blood vessels. Blood flow variations in these vessels yield ...

Without regulation, proteases will destroy many essential proteins for physiological processes. One way the body regulates ... a protein responsible for carrying oxygen in the blood. Protein catabolism is the process by which proteins are broken down to ... Protein anabolism is the process by which proteins are formed from amino acids. It relies on five processes: amino acid ... The process of bind an amino acid to a tRNA is known as tRNA charging. Here, the enzyme aminoacyl-tRNA-synthetase catalyzes two ...

... is the physiological process through which new blood vessels form from pre-existing vessels, formed in the earlier ... It is a potent, physiological process that underlies the natural manner in which our bodies respond to a diminution of blood ... In his study, Hunter observed the growth process of new blood vessels in rabbits. However, he did not coin the term " ... Hunter also erroneously attributed the growth process of new blood vessels to the effect of an innate vital principle within ...

... may be attributed to incorrect stimuli is because many stimuli have similar physiological symptoms such as increased blood ... In psychology, misattribution of arousal is the process whereby people make a mistake in assuming what is causing them to feel ... Misattribution of arousal, which is an influence on emotion processing, can be found in multiple situations, such as romantic ... Epinephrine activated the sympathetic nervous system and produced symptoms such as an elevated heart rate and blood pressure. ...

Heart rate and blood pressure increase. Blood flows to the hands. Perspiration increases (particularly when the anger is ... Anger, in its strong form, impairs one's ability to process information and to exert cognitive control over one's behavior. An ... The external expression of anger can be found in physiological responses, facial expressions, body language, and at times in ... The rapid, minimal, and evaluative processing of the emotional significance of the sensory data is done when the data passes ...

Sodium ions play a diverse and important role in many physiological processes, acting to regulate blood volume, blood pressure ... 10 mM in mammalian cell and 100 mM in blood plasma. The minimum physiological requirement for sodium is between 115 and 500 mg ... Conversely, an excess of body water caused by drinking will result in too little sodium in the blood (hyponatremia), a ... These fluids, such as blood plasma and extracellular fluids in other tissues, bathe cells and carry out transport functions for ...

The physiological reactions that are induced by stereotype threat can often be subconscious, and can distract and interrupt ... Blascovich J, Spencer SJ, Quinn D, Steele C (May 2001). "African Americans and high blood pressure: the role of stereotype ... Eberhardt JL, Goff PA, Purdie VJ, Davies PG (December 2004). "Seeing black: race, crime, and visual processing". Journal of ... Schmader T, Johns M, Forbes C (April 2008). "An integrated process model of stereotype threat effects on performance". ...

This process leaches natural soluble selenium compounds (such as selenates) into the water, which may then be concentrated in ... Substantial physiological changes may occur in fish with high tissue concentrations of selenium. Fish affected by selenium may ... Analysis of blood levels of inorganic compounds in the supplement indicated the selenium concentrations were 10 to 15 times ... Another source was the mud from the lead chambers of sulfuric acid plants, a process that is no longer used. Selenium can be ...

... blood is also consumable, as is the case among pastoralists in northern Kenya, where camel blood is drunk with milk and ... Methods of processing camel milk into cheese. Archived from the original on 2012-06-24. Young, Philippa. "In Mongolian the Word ... Camels have a series of physiological adaptations that allow them to withstand long periods of time without any external source ... Unlike other mammals, camels' red blood cells are oval rather than circular in shape. This facilitates the flow of red blood ...

Such a heat exchange process occurs usually within an enlarged, uninsulated and well vascularized appendage where blood is able ... However, more recently the beak has more closely been linked to its role in physiological homeostasis. As endothermic organisms ... The toucan is able to dilate or enlarge the beak's blood vessels when temperatures rise above a thermal neutral zone to allow ... The toucan beak has a network of superficial blood vessels that support the rhamphotheca, the horny sheath of the bill. ...

H2S can be damaging for some physiological processes as it inhibits the activity of cytochrome c oxidase, consequentially ... CO2 uptake in the worm is enhanced by the higher pH of its blood (7.3-7.4), which favors the bicarbonate ion and thus promotes ... It has also been suggested that cysteine residues are involved in this process. The acquisition of a symbiont by a host can ... The digestive tract transiently connects from a mouth at the tip of the ventral medial process to a foregut, midgut, hindgut, ...

Its physiological function may be associated with the liquefaction process of semen. PSAP was used to monitor and assess ... Diseases of the bone, such as Paget's disease or hyperparathyroidism, diseases of blood cells, such as sickle-cell disease or ...

Angiogenesis is the process by which new blood vessels are formed. Cancer cells appear to be able to kickstart this process, ... and thus exploits these normal physiological processes for its benefit. To do this, the cancer cells acquire the ability to ... Cells must be close to the blood vessels to get enough oxygen for them to survive. New blood vessels are formed during the ... To tightly control cell division, cells have processes within them that prevent cell growth and division. These processes are ...

Under normal physiological conditions, blood flows through the body without any noticeable aggregation of platelets. This is ... This process will then be mediated by integrins, such as β1 (α2β1, α5β1) and β3 (αIIbβ3) integrins. In addition, platelets are ... During the process, platelets begin to accumulate, or aggregate, on the damaged vessel wall.[citation needed] Platelet plug ... The result of the platelet plug formation is the coagulation of blood. It can also be referred to as primary hemostasis. For ...

Physiological arousal refers to features of arousal reflected by physiological reactions, such as escalations in blood pressure ... The process goes: event (family member dies) → physiological arousal (tears) and emotion (sadness) simultaneously. The fact ... The process is: the event (serial killer chasing the person) --> physiological arousal (sweat, heart racing) --> cognitive ... The process here is: event (insult) --> physiological arousal (balled fists, sweat, tension) --> interpretation ("I have balled ...

... biomarkers were primarily physiological indicators such as blood pressure or heart rate. More recently, biomarker is becoming a ... tissues or fluids that can be measured and evaluated to indicate normal biological processes, pathogenic processes, or ... Body fat percentage Body mass index Body temperature Blood pressure Blood sugar level Complete blood count Creatinine C- ... This may be a blood sample taken by a doctor, a urine or saliva sample, or a drop of blood like those diabetes patients extract ...

"Kriya Yoga is a simple, psycho-physiological method by which the human blood is decarbonized and recharged with oxygen. The ... The process of performing Kriya Yoga is claimed to lead to a certain purification of the blood which frees up the life force to ... By recharging the blood and cells with life energy that has been distilled from breath and reinforced with the pure ... By stopping the accumulation of venous blood, the yogi is able to lessen or prevent the decay of tissues; the advanced yogi ...

Similar analogy in human medical terms is high blood pressure or high body temperature or high white blood cells in body is an ... Some imaging or infrared measuring techniques can help to speed the process for breeding process. For example, spot blotch ... Evaluating physiological traits to complement empirical selection for wheat in warm environments. Euphytica 100:84-95., Fokar, ... Plant breeding is process of development of new cultivars. Plant breeding involves development of varieties for different ...