When you download a new song from iTunes, the music initially holds your attention all the way through. But when the song becomes "old,"
it may play without you really attending to it. This illustrates
a. habituation.
b. sensory gating.
c. perseveration.
d. dishabituation.
ANSWER: a
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Which of the following statements about chromosomes is correct?
a. An embryo's sex is determined by the specific arrangement of all 23 chromosome pairs. b. The egg cell from the mother has a sex chromosome that can be either an X or a Y. c. A female's sex chromosomes are symbolized XX. d. The female egg contains 23 chromosomes, whereas the male sperm contains only 22 chromosomes.
According to Freud, during the first year of life, children are in the ____ stage of development
a. oral b. fixated c. anal d. latency
Elizabeth tells her daughter Taylor, "I will stop this nagging, which you find unpleasant, as soon as you clean your room today and continue to clean it in the future.". This description indicates that Elizabeth is trying to use
a. positive reinforcement. b. negative reinforcement. c. positive punishment. d. negative punishment.
An alternative to the dopamine hypothesis of schizophrenia is the proposal that schizophrenia may be due to a deficiency of activity of ____ synapses.
A. serotonin B. glutamate C. substance P D. acetylcholine