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Skin Conductance
Electrodermal activity (EDA) is the property of the human body that causes continuous variation in the electrical characteristics of the skin. Historically, EDA has also been known as skin conductance, galvanic skin response (GSR), electrodermal response (EDR), psychogalvanic reflex (PGR), skin conductance response (SCR), sympathetic skin response (SSR) and skin conductance level (SCL). The long history of research into the active and passive electrical properties of the skin by a variety of disciplines has resulted in an excess of names, now standardized to electrodermal activity (EDA). The traditional theory of EDA holds that skin resistance varies with the state of sweat glands in the skin. Sweating is controlled by the sympathetic nervous system, and skin conductance is an indication of psychological or physiological arousal. If the sympathetic branch of the autonomic nervous system is highly aroused, then sweat glands activity also increases, which in turn increases skin ...
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Human Skin
The human skin is the outer covering of the body and is the largest organ of the integumentary system. The skin has up to seven layers of ectodermal tissue (biology), tissue guarding Skeletal muscle, muscles, bones, ligaments and organ (anatomy), internal organs. Human skin is similar to most of the other mammals' skin, and it is very similar to pig skin. Though nearly all human skin is covered with hair follicles, it can appear Nudity#Evolution of hairlessness, hairless. There are two general types of skin: hairy and glabrous skin (hairless). The adjective List of medical roots, suffixes and prefixes#C, ''cutaneous'' literally means "of the skin" (from Latin ''cutis'', skin). Skin plays an important immunity (medical), immunity role in protecting the body against pathogens and excessive transepidermal water loss, water loss. Its other functions are Thermal insulation, insulation, thermoregulation, temperature regulation, sensation, synthesis of vitamin D, and the protection ...
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Psychoanalysis
PsychoanalysisFrom Greek language, Greek: and is a set of theories and techniques of research to discover unconscious mind, unconscious processes and their influence on conscious mind, conscious thought, emotion and behaviour. Based on The Interpretation of Dreams, dream interpretation, psychoanalysis is also a talk therapy method for treating of mental disorders."All psychoanalytic theories include the idea that unconscious thoughts and feelings are central in mental functioning." Milton, Jane, Caroline Polmear, and Julia Fabricius. 2011. ''A Short Introduction to Psychoanalysis''. Sage Group, SAGE. p. 27."What is psychoanalysis? Of course, one is supposed to answer that it is many things — a theory, a research method, a therapy, a body of knowledge. In what might be considered an unfortunately abbreviated description, Freud said that anyone who recognizes transference and resistance is a psychoanalyst, even if he comes to conclusions other than his own. … I prefer to think ...
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E-meter
The E-Meter (also electropsychometer and Hubbard Electrometer) is an electronic device used in Scientology that allegedly "registers emotional reactions". After claims by L. Ron Hubbard that the procedures of Auditing (Scientology), auditing, which used the E-Meter, could help heal diseases, the E-Meter became the subject of litigation. Since then, the Church of Scientology publishes disclaimers declaring that the E-Meter "by itself does nothing", is incapable of improving health, and is used solely for spiritual purposes. History Mathison Volney Mathison built an Electrodermal activity, EDA meter based on a Wheatstone bridge, a vacuum tube amplifier, and a large moving-coil meter that projected an image of the needle on the wall. He patented his device in 1954 as an ''electropsychometer'' or E-meter, and it came to be known as the "Mathison Electropsychometer". In Mathison's words, the E-meter "has a needle that swings back and forth across a scale when a patient holds on ...
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Biofeedback
Biofeedback is the technique of gaining greater awareness of many physiology, physiological functions of one's own body by using Electronics, electronic or other instruments, and with a goal of being able to Manipulation (psychology), manipulate the body's systems at will. Humans conduct biofeedback naturally all the time, at varied levels of consciousness and intentionality. Biofeedback and the biofeedback loop can also be thought of as Emotional self-regulation, self-regulation. Some of the processes that can be controlled include Electroencephalography, brainwaves, muscle tone, skin conductance, heart rate and pain perception. Biofeedback may be used to improve health, performance, and the physiological changes that often occur in conjunction with changes to thoughts, emotions, and behavior. Recently, technologies have provided assistance with intentional biofeedback. Eventually, these changes may be maintained without the use of extra equipment, for no equipment is necessar ...
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Brighton And Sussex Medical School
Brighton and Sussex Medical School (BSMS) is a medical school formed as a partnership of the University of Brighton and the University of Sussex. Like other UK medical schools it is based on the principles and standards of 'Tomorrow's Doctors', an initiative by the General Medical Council outlining the role of British practitioners. Since opening in 2003, BSMS has produced more than 1,500 new doctors who now work across the UK. Introduction The first intake of students began their five-year medical degree programmes in September 2003. The school was opened as a part of the British Government's attempts to train more doctors, which also saw Peninsula Medical School, University of East Anglia Medical School, Hull York Medical School and Keele University Medical School open their doors. The school is one of a number of new medical schools formed in the UK following the Labour Party (UK), Labour Governments 1997 election victory. Students are technically full members of both unive ...
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Guilford Press
Guilford Press or Guilford Publications, Inc. is a New York City-based independent publisher founded in 1973 that specializes in publishing books and journals in psychology, psychiatry, the behavioral sciences, education, geography, and research methods. Overview Guilford was founded by Bob Matloff and Seymour Weingarten. Matloff retired as president in 2022. The firm is run by Weingarten (co-founder and editor-at-large) and Tim Stookesberry (chief executive officer). Guilford Press says it has over 1,300 titles in print, typically publishes more than 55–65 new books in print and e-book formats each year, and also publishes 10 journals. In the academic sphere, Guilford Publications has published books by Aaron T. Beck, the cognitive therapist; Marsha Linehan, the developer of dialectical behavior therapy (DBT); and the founders of motivational interviewing, Stephen Rollnick and William R. Miller. ''Overcoming Binge Eating, Second Edition'', by Christopher G. Fairburn, a ...
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Psychopaths
Psychopathy, or psychopathic personality, is a personality construct characterized by impaired empathy and remorse, along with bold, disinhibited, and egocentric traits. These traits are often masked by superficial charm and immunity to stress, which create an outward appearance of apparent normalcy. Hervey M. Cleckley, an American psychiatrist, influenced the initial diagnostic criteria for antisocial personality reaction/disturbance in the ''Diagnostic and Statistical Manual of Mental Disorders'' (DSM), as did American psychologist George E. Partridge. The DSM and ''International Classification of Diseases'' (ICD) subsequently introduced the diagnoses of antisocial personality disorder (ASPD) and dissocial personality disorder (DPD) respectively, stating that these diagnoses have been referred to (or include what is referred to) as psychopathy or sociopathy. The creation of ASPD and DPD was driven by the fact that many of the classic traits of psychopathy were imp ...
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Polygraph
A polygraph, often incorrectly referred to as a lie detector test, is a pseudoscientific device or procedure that measures and records several physiological indicators such as blood pressure, pulse, respiration, and skin conductivity while a person is asked and answers a series of questions. The belief underpinning the use of the polygraph is that deceptive answers will produce physiological responses that can be differentiated from those associated with non-deceptive answers; however, there are no specific physiological reactions associated with lying, making it difficult to identify factors that separate those who are lying from those who are telling the truth. In some countries, polygraphs are used as an interrogation tool with criminal suspects or candidates for sensitive public or private sector employment. Some United States law enforcement and federal government agencies, as well as many police departments, use polygraph examinations to interrogate suspects and screen ...
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Siemens (unit)
The siemens (symbol: S) is the unit of electric conductance, electric susceptance, and electric admittance in the International System of Units (SI). Conductance, susceptance, and admittance are the reciprocals of resistance, reactance, and impedance respectively; hence one siemens is equal to the reciprocal of one ohm () and is also referred to as the '' mho''. The siemens was adopted by the IEC in 1935, and the 14th General Conference on Weights and Measures approved the addition of the siemens as a derived unit in 1971. The unit is named after Ernst Werner von Siemens. In English, the same word ''siemens'' is used both for the singular and plural. Like other SI units named after people, the name of the unit (siemens) is not capitalized. Its symbol (S), however, ''is'' capitalized to distinguish it from the '' second'', whose symbol (s) is lower case. The related property, electrical conductivity, is measured in units of siemens per metre (S/m). Definition For an ...
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Stimulus (physiology)
In physiology, a stimulus is a change in a living thing's internal or external environment. This change can be detected by an organism or organ using sensitivity, and leads to a physiological reaction. Sensory receptors can receive stimuli from outside the body, as in touch receptors found in the skin or light receptors in the eye, as well as from inside the body, as in chemoreceptors and mechanoreceptors. When a stimulus is detected by a sensory receptor, it can elicit a reflex via stimulus transduction. An internal stimulus is often the first component of a homeostatic control system. External stimuli are capable of producing systemic responses throughout the body, as in the fight-or-flight response. In order for a stimulus to be detected with high probability, its level of strength must exceed the absolute threshold; if a signal does reach threshold, the information is transmitted to the central nervous system (CNS), where it is integrated and a decision on how to ...
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Parasympathetic Nervous System
The parasympathetic nervous system (PSNS) is one of the three divisions of the autonomic nervous system, the others being the sympathetic nervous system and the enteric nervous system. The autonomic nervous system is responsible for regulating the body's unconscious actions. The parasympathetic system is responsible for stimulation of "rest-and-digest" or "feed-and-breed" activities that occur when the body is at rest, especially after eating, including sexual arousal, salivation, lacrimation (tears), urination, digestion, and defecation. Its action is described as being complementary to that of the sympathetic nervous system, which is responsible for stimulating activities associated with the fight-or-flight response. Nerve fibres of the parasympathetic nervous system arise from the central nervous system. Specific nerves include several cranial nerves, specifically the oculomotor nerve, facial nerve, glossopharyngeal nerve, and vagus nerve. Three spinal nerves ...
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Psychophysiological
Psychophysiology (from Greek , ''psȳkhē'', "breath, life, soul"; , ''physis'', "nature, origin"; and , ''-logia'') is the branch of psychology that is concerned with the physiological bases of psychological processes. While psychophysiology was a general, broad field of research in the 1960s and 1970s, it has now become quite specialized, based on methods, topic of studies, and scientific traditions. Methods vary as combinations of electrophysiological methods (such as EEG), neuroimaging (MRI, PET), and neurochemistry. Topics have branched into subspecializations such as social, sport, cognitive, cardiovascular, clinical, and other branches of psychophysiology. Background Some people have difficulty distinguishing a psychophysiologist from a physiological psychologist, which has two very different perspectives. Psychologists are interested in why we may fear spiders and physiologists may be interested in the input/output system of the amygdala. A psychophysiologist will ...
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