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Psychophysiology

Psychophysiology Overview – Psychophysiology studies the psychological/physiological link in intact human subjects. – It focuses on the impact of physiological states on psychological states and […]

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Psychophysiology Overview
– Psychophysiology studies the psychological/physiological link in intact human subjects.
– It focuses on the impact of physiological states on psychological states and vice versa.
– Historically, it concentrated on autonomic nervous system responses but now includes central nervous system and advanced neuroimagery techniques.
– It is related to neuroscience, endocrinology, psychosomatics, and psychopharmacology.

Measures in Psychophysiology
– Evaluative reports involve participant introspection and self-ratings.
– Physiological responses measured include heart rate change, electrodermal activity, muscle tension.
– Modern psychophysiology indices include brain waves, fMRI, cardiovascular measures, muscle activity.
– Neurochemical methods study neurotransmitters and neuropeptides.
– Overt action or behavior can also be measured in psychophysiology studies.

Applications of Psychophysiological Measures
– These measures are used to study emotion, attention responses, exertion, and cognitive processes.
– Physiological sensors are used to detect emotions in schools and intelligent tutoring systems.

Psychophysiological Studies on Emotions
– Emotional episodes are partly constituted by physiological responses.
– Early work linked emotions to consistent autonomic nervous system responses.
– Variability exists in ANS responses to discrete emotions among individuals and over time.
– Factors influencing ANS responses include induction technique, context, and participant features.
– No definitive correlation links specific autonomic patterns to discrete emotions.

Psychophysiological Inference and Applications
– Physiological computing adapts software to user psychophysiological activity.
– The goal is to build a computer that responds to user emotion, cognition, and motivation.
– Methods to represent psychological state include psychophysiological indices.
– Advantages of using psychophysiological indices include continuous changes and covert measures.
– Physiological computing systems rely on an accurate representation of psychological dimensions.

Psychophysiology (Wikipedia)

Psychophysiology (from Greek ψῡχή, psȳkhē, "breath, life, soul"; φύσις, physis, "nature, origin"; and -λογία, -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.

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