Because nicotine increases how the neurotransmitter acetylcholine functions, it is an
a. inhibitory neurotransmitter.
b. excitatory neurotransmitter.
c. antagonist.
d. agonist.
Answer: d. agonist.
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Advances in genetic engineering show that it is possible to
a. enhance learning and memory ability in nonhuman organisms. b. erase specific memories from the brain. c. graft parts of the brain from one organism into another to share memories. d. breed animals that perform as well as humans on memory tests. e. increase memory functioning in humans.
According to Masters and Johnson, the sequence for the four phases of human sexual arousal is excitement phase, ____________________ phase, orgasmic phase, and resolution phase
Fill in the blank(s) with correct word
The fact that most of us gain pleasure from eating and sexual activity is at least partially due to the effects of neurotransmitters. Which neurotransmitter is the most likely source of this pleasure?
a. ?epinephrine b. ?glutamate c. ?endorphins d. ?dopamine
Extinction in operant conditioning involves:
A) presenting the reinforcer when the behaviour does not occur. B) no longer presenting the reinforcer when the response occurs. C) repeatedly presenting the CS without the US. D) not presenting the discriminative stimulus, which signals the opportunity to respond.