28. Using optogenetics to manipulate neuronal firing in the locus coeruleus (LC)

Question

28. Using optogenetics to manipulate neuronal firing in the locus coeruleus (LC), Carter and colleagues found that silencing LC neurons in a mouse exploring its environment did what? a. Reduced wakefulness and promoted NREM sleep b. Paralyzed the mice c. Increased alertness and exploration d. Accelerated the sleep cycles and increased REM sleep 29. The control of sleep and wakefulness describes by the "Flip-Flop" switch depends on what principal of neural function? a. Transcriptional feedback b. Spatial and temporal summation c. Runaway excitation d. Mutual inhibition 30. True or False: nearly every cell in the body contains a daily clock. a. True b. False 31. "Early birds" and "night owls" are expressions that refer a person's natural sleep-wake pattern, otherwise referred to as their: a. core loop b. chronotype c. horoscope d. circannual rhythm

Explanation / Answer

28. Correct answer:- (a) reduced wakefulness and promoted NREM sleep

29. Correct answer:- (b) spatial and temporal summation

30. Correct answer:- True

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