Sleep in a Psychological Sense (VOCAB and BRAIN FUNCTIONS)

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5 Terms

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Hypothamalus

Peanut sized structure deep inside the brain that contains groups of nerve cells that act as control centers affecting sleep and wakefulness.

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Suprachiasmatic nucleus (SCN

(Within the hypothamalus) clusters of thousands of cells that recieve information about light exposure. Controls your behavioral rhythm.

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Circadian Rhythm

A bodys internal 24 hour clock that governs sleep-wake cycles, hormone release (melatonin and cortisol), body temp, and metabolism.

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Brainstem

Controls the transition between wake and sleep. Produces a brain chemical called GABA

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GABA

(Gamma-Aminobutyric Acid) The brains primary inhibitory neurotransmitter, acts as the “brakes” to calm nerve activity, reduce stress, and promote sleep by blocking symbols.