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PSYC3 Final test guide - CH.9 Biological and behavioral...

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CH.9 Biological and behavioral changes around a 24 hour period defines a: A.: A. circadian rhythm. People who are active and alert during the morning hours but become drowsy in the afternoon and evenings are called: A.: B. larks. The opposite of a “lark” is a(n): A.: C. owl. Body temperature is lowest during: A.: A. early morning hours. Which of the following are secreted at their highest levels during the night? A.: B. All of the answers are correct. The neural structure responsible for the circadian cycle is the: A.: B. suprachiasmatic nucleus (SNC). The suprachiasmatic nucleus (SNC) is located in the medial: A.: C. hypothalamus. An animal that is generally awake during the day and sleeping at night is termed: A.: D. diurnal. Some studies have shown that the free-running human circadian cycle is not 24 hours, but more like: A.: A. 25 hours. Our primary zeitgeber is: A.: A. light. Information about light and dark travels from the nonvisual receptors to the hypothalamus via the: A.: D. retinohypothalamic tract. Light activates the cells in the suprachiasmatic nucleus (SCN) by triggering the release of: A.: B. glutamate. During the night, the pineal gland secretes: A.: C. melatonin. Exposure to artificial light can help alleviate the symptoms of which disorder? A.: D. seasonal affective The genetic basis for the circadian cycle was first discovered in: A.: B. fruit flies Which shift work schedule produced the greatest job satisfaction? A.: A. phase-delay.
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There is greater jet lag when flying: A.: B. east. Which of the following can be effective in reducing jet lag? A.: D. All of the answers are correct. The EEG pattern that indicates we are awake and alert is called: A.: D. beta activity. When awake but relaxing with our eyes closed our EEG shows which pattern? A.: A. alpha activity Which surgical preparation initially produced constant sleep in cats? A.: D. cerveau isolé. Normal sleep-wake cycles occurred in cats exposed to this preparation. A.: B. encéphale isolé The area between the encéphale and cerveau isolé is called the: A.: B. reticular activating system (RAS). The area in the reticular activating system (RAS) important for behavioral alertness is the: A.: A. locus coeruleus. Which neurotransmitter is used by the locus coeruleus? A.: A. norepinephrine Stage 1 sleep is characterized by which EEG pattern? A.: D. theta waves Sleep spindles first appear during: A.: B. stage 2 sleep. K complexes first appear during: A.: D. stage 2 sleep. Delta wave activity begins in: A.: D. stage 3 sleep. Sleep stages 3 and 4 are also known as: A.: A. slow-wave sleep (SWS). During stage 2 sleep, 1 to 2 second bursts of 12 to 14 Hz activity occur. These are called: A.: C. sleep spindles. NonREM (NREM) sleep occurs during: A.: A. All of the answers are correct. REM sleep is also known as: A.: B. paradoxical sleep. Vivid and detailed dreams are most likely to occur during: A.: D. REM sleep.
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