Recent research on genetic markers suggests that:
A. specific genes have been linked to schizophrenia
B. schizophrenia has no such marker
C. the neurotransmitter dopamine plays little if any role in schizophrenia
D. a disruption in a gene can cause neurons that are supposed to go to the hippocampus to go elsewhere
Answer: D
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In an experiment, rats are exposed to a loud noise. One group is able to escape the noise by pushing a lever. The second group has no lever available and therefore cannot escape the noise. After several trials, both groups are put in situations where they can escape. The first group escapes the noise, but the second group just sits and cowers, refusing to attempt to escape the noise. The response of the second group is due to __________.
A. learned helplessness B. contingency blocking C. latent learning D. response generalization
What is the term used for the one trait that is expressed when two competing traits are present?
A. recessive B. genotypic C. dominant D. phenotypic
Watson was attracted to psychology through his association with ____.?
a. ?Dewey b. ?Angell c. ?Loeb d. ?Carr e. ?Baldwin
Psychophysics began with the work of which 19th-century German scientist(s)?
a. David Hubel and Torsten Wiesel b. Hermann von Helmholtz and Ewald Hering c. Wilhelm Wundt d. Ernst Weber e. Gustav Fechner