PSYC 2230 Chapter Notes - Chapter 3: Physiological Psychology, Basal Forebrain, Coronary Artery Disease
10 Jan 2018
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Stress is located at the extreme end of continuum of arousal, low arousal = we sleep, moderate arousal = awake/alert, high arousal = anxiety/stress. Motivation = emotion = arousal, motivation and emotion regarded as resulting from changes in arousal. Inverted u function - poi(cid:374)t out that arousal gets to (cid:862)opti(cid:373)al(cid:863) poi(cid:374)t (cid:449)here perfor(cid:373)a(cid:374)(cid:272)e is (cid:271)est, a(cid:374)(cid:455) further arousal after that causes performance to decrease. (a. k. a. Hokanson said- relationship between arousal and performance holds for some type of times and not others. Bremer - some brain structure control changes in arousal level involved in moving from sleeping to waking (located in areas of the pons) Encephale isole - brainstem between them but do not end the spinal cord cut, and animals still go through normal sleep wake cycle. Cerveau isole cut brain stem at colliculi, sleep white cycle is abolished, the animal sleep and (cid:272)a(cid:374)(cid:859)t (cid:449)ake up.
