Which of the following sleep disturbances has an INCORRECT description?
a. narcolepsy---------sudden, irresistible daytime sleep attacks
b. sleep apneas-------breathing stops for 20 seconds or more hundreds of times per night
c. sleep terrors-------vivid, recurring nightmares that disturb sleep
d. sleepwalking-------person during NREM engages in activities that are normally engaged in while awake
ANSWER: c
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Psychological maltreatment and physical abuse of children can produce permanent physical changes in the limbic system of the brain.
Answer the following statement true (T) or false (F)
People are less likely to notice an emergency if they
a. display empathic concern for others. b. are aware of their surroundings. c. are in a good mood. d. are under time pressure.
Alice developed a fear of the water when she fell out of a canoe two summers ago. Then she took swimming lessons and she thought she had finally overcome her fear of water. Alice was eagerly looking forward to an upcoming vacation at the lake. However, as soon as she stepped back into a canoe, she was instantly terrified again. The reappearance of Alice's fear of water illustrates the classical
conditioning process referred to as: a. extinction b. conditioned inhibition c. spontaneous recovery d. overjustification
Which of the following statements is true of opponent-process cells?
a. When these cells are inhibited in response to a color, they stop firing when the color is removed. b. When these cells are said to fire in response to a color, they stop firing when the color is removed. c. If these cells are absent or malfunctioning, the result is color blindness or deficiency. d. These cells either respond to short wavelengths but are inhibited from firing by long wavelengths or vice versa.