Damage to the preoptic area causes an animal to:
a. eat a great deal and gain weight.
b. stop eating.
c. fail to sweat when overheating, but still shiver when cold.
d. fail to shiver and sweat sufficiently.
Answer: d. fail to shiver and sweat sufficiently.
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Which of the following are contained in the current DSM categories of phobias?
a. linguistic, natural, and symbolic b. neurotic, physical, and psychotic c. agoraphobia, social, and specific d. generalized, antisocial, and nonspecific
Research has found that infants can distinguish different phonemes from each other as early as ____ of age
a. two weeks b. one month c. three months d. five months
The speed of an action potential down an unmyelinated axon is best described as ____
a. the speed of electricity, regardless of the size of the axon b. less than 1 meter per second, regardless of the size of the axon c. faster in thin axons than in thick ones d. faster in thick axons than in thin ones
Ionotropic effects are characterized by ____.
A. rapid and short-lived effects B. rapid and long lasting effects C. excitatory effects only D. inhibitory effects only