PSYC 1100 Lecture Notes - Lecture 6: Rapid Eye Movement Sleep, Pineal Gland, Suprachiasmatic Nucleus
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PSYC 1100 Full Course Notes
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Document Summary
Stimulates increase cns activity(often inhibit dopamine reuptake. Hallucinogens alter sensation and perception(mixed neurotransmitter effects. Cocaine: binds to the reuptake and makes sure the dopamine stays inside the postsynaptic neuron. Early drug use: people take a small amount and have a high physiological response. Continued drug use: need to take a lot more to take same initial response. Circadian rhythms: biological rhythms tied to the light-dark cycle. Sun comes in through our eyes, and is processed by the suprachiasmatic nucleus: takes visual input----->neural hormonal circadian response, helps regulate slow-wave sleep. Pituitary gland: cortisone and cortisol, growth hormone. Sleep is important for cognitive function(memory, learning, attention) Stage 1: relaxed, between sleeping and waking, physiological signals slow. Stage 2: deep physical relaxation, changing brain patterns. Stages 3 and 4: deep sleep, even slower breathing and heart rates. Rem: rapid eye movement, dreaming, muscle paralysis, increases in duration throughout the night. Types of brain activity detectable by different eeg patterns.
