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An event-related potential (ERP) is the measured brain response that is the direct result of a specific sensory, cognitive, or motor event. [1] More formally, it is any stereotyped electrophysiological response to a stimulus. The study of the brain in this way provides a noninvasive means of evaluating brain functioning.
One study has shown that Extraversion and Agreeableness are positively correlated with overall neural activity in the default mode network. [50] Assessing the relationship between neural activity in brain networks and personality traits is an important first step for identifying where the neurobiological basis of personality traits may be ...
Examples of cognitive research might involve examination of neural correlates during emotional information processing, such as one study that analyzed the relationship between subjective affect and neural reactivity during sustained processing of positive and negative emotion. The aim of the study was to analyze whether repetitive positive ...
Physiological psychology is a subdivision of behavioral neuroscience (biological psychology) that studies the neural mechanisms of perception and behavior through direct manipulation of the brains of nonhuman animal subjects in controlled experiments.
Similarly, when the structural remodeling (e.g., cellular and molecular processes from the nucleus of a cell to the surface of a cell) of neural architecture, which is a key result of stress, continues past the termination of a stressor, the body is no longer maintaining a status of homeostasis and the extended stress response has negative ...
Ventral pallidum firing is also elevated by stress induced depression, an effect that is pharmacologically valid, and silencing of these neurons alleviates behavioral correlates of depression. [131] Tentative in vivo evidence from people with MDD suggests abnormalities in dopamine signalling. [ 133 ]
In this model, a person's raw score on a test is compared to a large general population normative sample, that should ideally be drawn from a comparable population to the person being examined. Normative studies frequently provide data stratified by age, level of education, and/or ethnicity, where such factors have been shown by research to ...
[10] [11] [12] A large number of studies have been conducted with uniformly positive correlations, leading to the generally safe conclusion that larger brains predict greater intelligence. [ 13 ] [ 14 ] In healthy adults, the correlation of total brain volume and IQ is approximately 0.4 when high-quality tests are used. [ 15 ]