A rat will press a response bar hundreds of times if bar pressing results in the administration of cocaine. Apparently, the pleasurable and reinforcing aspects of the drug are due to cocaine's effect on:

a. dopamine
b. endorphins
c. serotonin
d. GABA


A

Psychology

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Juliana has just suffered an interruption of blood flow to her brain. Her doctor has told her that she has just experienced a(n) ____ and that they should now do what they can to prevent the onset of a stroke

a. transient ischemic attack b. presbycusis c. amyloid d. circadian rhythm

Psychology

The fact that a neuron fires an impulse of the same strength whenever its action potential is triggered is called

a. resting potential. c. the refractory period. b. polarization. d. the all-or-none principle.

Psychology

Infants form categories from the important clues provided by perceptual features and the organization of these features

Indicate whether the statement is true or false

Psychology

According to Jusczyk and colleagues (1999), which of the following words would be most likely to be mis-segmented from the speech stream by English-speaking infants?

a. mother b. rainbow c. garage d. freedom

Psychology