The psychoactive ingredient in marijuana affects the same receptor sites as which of the following ligands?
a. Endorphins
b. Anandamide
c. Dopamine
d. Glutamate
B
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Regarding physical and cognitive changes in late adulthood, which of the following statements is FALSE?
a. Age-related declines in memory are generally not at a level significant enough to impair daily functioning. b. Aging brings loss of bone density and muscle mass, as well as reduced sharpness or acuity of the senses. c. Reaction times slow, which may have an impact on driving abilities. d. Immune system functioning declines, making older people more susceptible to illness. e. Fluid intelligence increases across much of the life span, only beginning to decline around age 70.
In the context of operant conditioning, which of the following is true about a variable-ratio schedule of reinforcement?
A. In a variable-ratio schedule, the number of responses usually hovers around a specific average. B. In a variable-ratio schedule, reinforcement is given only after a specific number of responses. C. In a variable-ratio schedule, the focus is on the amount of time that has elapsed since one was rewarded. D. In a variable-ratio schedule, the time between reinforcements varies around some average rather than being fixed.
While trying to study in the library, you are distracted by two students who are arguing about which CS-UCS time interval is most effective. One student claims that a second or less is best,
but the other is positive that longer intervals of five to fifteen seconds work best. Finally, you go over and tell them that the a. shorter the interval the better. b. longer the interval the better. c. optimal interval most depends upon the person who is being conditioned. d. optimal interval most depends upon the response being conditioned.
Goodness of fit refers to the compatibility of the child's ________ and his /her ________
Fill in the blanks with correct word