PSY 3391 Lecture Notes - Lecture 12: Melatonin, Brainstem, Stim
4 Dec 2017
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November 14 bio rhythms lecture 16. Depending on when they do it: d, n, c. D: active during the day, sleep at night (eg. horses, humans) N: active at night, sleep during day (eg. raccoons, rats) **know distinction and when they concentrate their activity. Humans are d/c. discovery of light have challenged this. Some will sleep during day, sleep during day (night shift workers) . Examine what time they prefer running on the wheel (rats) Graph - # of revolution in 24 hour period. Most happen when lights are off most rodents are n so they need to be housed in reverse cycle (make their homes night when its daytime so you can study) Taller spikes before of after blue (blue = sleeping time) Bio clock tell us what we should be doing when (control behave at specific times) Exogenous factors (outside of body) eg. day/light cycles outside. Endogenous factors (inside body) eg. things that mediate physiology/behave of a person.
