As Jenelle is falling asleep, she has a sensation of stumbling. Suddenly, her right foot jerks in bed, seemingly simulating the falling experience in her sleeping state. These muscle contractions are called __________.
A. hypnic jerks
B. sleep spindles
C. K complexes
D. alpha wave activity
Answer: A
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Babies show a wide range of emotional expressions, and emotional facial expressions are identified across cultures. These data support the idea that:
a. there are 10 basic emotions b. the expression of emotion has a biological or genetic component c. cognitive appraisal is an important part of the emotional experience d. feedback from facial muscles is used to interpret an emotional experience
Which statement provides an example of an age-graded influence?
A) Paul learned to play the violin at age 11. B) Frank got his driver’s license at age 16. C) Martina got married at age 34. D) Jesse learned to use a computer at age 21.
How does the hypovolemic thirst signal get from the kidneys to the brain?
A. Signals are sent from the organum vasculosum lamina terminalis. B. The vagus nerve sends signals from the heart to the brain. C. The kidneys prompt release and production of hormones renin and angiotensin II. D. The median preoptic nucleus detects low water volume directly via its blood supply.
In the Westgate experiment, some apartments were more likely to be passed than others. Which term describes this concept?
A. physical distance B. functional distance C. misattribution of arousal D. similarity-attraction hypothesis