lecture 12 sleep

lecture 12 sleep - 10/29/2008 Lecture 12: Sleep Overview 1....

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10/29/2008 1 Lecture 12: Sleep Overview 1. Review 2. Functions of sleep 3. Brain mechanisms controlling sleep 4. Dreams 5. Sleep disorders Brain Mechanisms Controlling Sleep NREM sleep Raphé nuclei —located in a thin strip that runs along the midline in the caudal part of the reticular formation. Damage to raphé nuclei produces insomnia. Serotonin is one of the transmitters in the raphé nuclei.
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10/29/2008 2 NREM sleep (cont.) Serotonin antagonists decrease sleep, e.g., parachlorophenylalani ne (PCPA). Findings also indicate that stimulation of the raphé nuclei do not produce sleep. It seems the raphé nuclei may be involved in activation of the brain. Brain Mechanisms Controlling Sleep: NREM Sleep Basal forebrain region—an area anterior to the hypothalamus. Has been shown to induce sleep when stimulated. Damage to this area produces sleeplessness.
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10/29/2008 3 Dreams Everybody dreams. Studied by relying on recollection of dreams
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This note was uploaded on 02/05/2011 for the course PSY 370 taught by Professor Zalava during the Fall '09 term at CSU Long Beach.

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lecture 12 sleep - 10/29/2008 Lecture 12: Sleep Overview 1....

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