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The reticular formation is a set of interconnected nuclei in the brainstem that spans from the lower end of the medulla oblongata to the upper end of the midbrain. [2] The neurons of the reticular formation make up a complex set of neural networks in the core of the brainstem. [3] It is not anatomically well defined, because it includes neurons ...
According to Eysenck, differences in extraversion are a result of differences in sensitivity of the ascending reticular activating system. [9] People with less sensitive systems are not easily aroused and seek additional stimulation, resulting in an extraverted personality. [10]
Activation-synthesis hypothesis. The activation-synthesis hypothesis, proposed by Harvard University psychiatrists John Allan Hobson and Robert McCarley, is a neurobiological theory of dreams first published in the American Journal of Psychiatry in December 1977. The differences in neuronal activity of the brainstem during waking and REM sleep ...
Giuseppe Moruzzi (July 30, 1910 – March 11, 1986) was an Italian neurophysiologist. He was one of three scientists who connected wakefulness to a series of brain structures known as the reticular activating system, and his work reframed sleep as an active process in the brain rather than a passive one. He received the Karl Spencer Lashley ...
Arousal is the physiological and psychological state of being awoken or of sense organs stimulated to a point of perception. It involves activation of the ascending reticular activating system (ARAS) in the brain, which mediates wakefulness, the autonomic nervous system, and the endocrine system, leading to increased heart rate and blood pressure and a condition of sensory alertness, desire ...
Reinforcement sensitivity theory. Reinforcement sensitivity theory (RST) proposes three brain-behavioral systems that underlie individual differences in sensitivity to reward, punishment, and motivation. While not originally defined as a theory of personality, the RST has been used to study and predict anxiety, impulsivity, and extraversion. [1]
Neuroscience of sleep. The neuroscience of sleep is the study of the neuroscientific and physiological basis of the nature of sleep and its functions. Traditionally, sleep has been studied as part of psychology and medicine. [1] The study of sleep from a neuroscience perspective grew to prominence with advances in technology and the ...
Donald Benjamin Lindsley (December 23, 1907 – June 19, 2003) was an American physiological psychologist most known as a pioneer in the field of brain function study. . Considered by his colleagues to have been worthy of winning the Nobel Prize in Physiology for discovering the reticular activating system along with Horace Winchell (Tid) Magoun and Giuseppe Moruzzi, Lindsley was instrumental ...