Oligodendrocytes perform which of the following functions?
A. physical support of nerve cells
B. provision of nourishment to neurons
C. clean up debris within the brain
D. enhancement of conduction velocity along an axon
Answer: D
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Fifty survivors of an airplane crash are given questionnaires to fill out two weeks, six weeks, and thirty weeks after the crash. This study combines what types of research?
a. longitudinal and historical b. case study and analogue c. single-subject experiment and survey d. longitudinal and survey
According to Chomsky, which observation of language in children challenges a behavioural account?
A) Children can generate new grammatically correct sentences. B) Young children tend to repeat what they just heard. C) If you give a child a cookie every time they say "please," they will say "please" more often. D) Grammar rules are highly individualistic and the result of childhood learning experiences.
Negative reinforcement and punishment
a. have opposite effects on behavior. b. are different terms for the same procedure. c. have the same effect on behavior. d. are not very effective in changing behavior.
Some people have nearsightedness (myopia) or farsightedness (hyperopia) because the distance between their _____ and their _____ is either too short or too long
a) cornea; lens b) iris; pupil c) rods; cones d) lens; retina