PSYC 1101 Chapter Notes - Chapter 4.2: Sigmund Freud, Obstructive Sleep Apnea, Waking Hours
10 Nov 2016
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*many brain regions are more active during sleep than during wakefulness. * circadian rhythms: brain activity and other physiological processes are regulated into patterns. *suprachiasmatic nucleus: information about light detected by the eyes is sent to a small region of the hypothalamus. * pineal gland: sends signals to a tiny structure. * melatonin: a hormone that travels through the bloodstream and affects various receptors in the body, including brain. * sleepless: this gene regulates a protein that reduces action potentials in the brain. Loss of this protein leads to an 80percent reduction in sleep. * sufficient sleep is important for memory and good health and is often affected by psychological disorders, such as depression. ** sleep is an altered state of consciousness. When you sleep, your conscious experience of the outside world is largely turned off. To some extent, however, you remain aware of your surroundings and your brain still processes information.
