PSYO 3264 Study Guide - Midterm Guide: Cranial Nerves, Survival Function, Encephalitis
23 Apr 2022
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Midterm review and study questions (psyo 3264) - exam 1. Sleep is irresistible drive with no obvious survival function. Encephalitis enlargica, sleep came from the brain, not toxins in the body. Loomis et al. classified sleep into five different stages, a to e, based on eeg characteristics. However they failed to identify rem sleep (rapid eye movement sleep). Stage a: drowsy sleep; b: sleep onset c: light sleep; d: intermediary sleep and e: deep sleep. Stage b corresponds to sleep stage 1 of the contemporary classification. Summarize the principal findings made by bremer using the ence phale isole and cerveau isole preparations. That sensory input carried be the cranial nerves was necessary in order to arouse the cortex to wakefulness. The researchers proposed that a column of cells surrounding the midbrain reticular formation received input from all the ascending tracts of the brain stem and relayed these afferents to the cortex and therefore regulated wakefulness.
