Recognizing a contingency between events requires experiencing multiple pairings, but subjects sometimes respond to a CS after only one trial. The best explanation for this seems to be
a. non-human subjects are not affected by the degree of CS-US contingency.
b. the degree of CS-US contingency only matters with a dangerous US.
c. the degree of CS-US contingency only matters in cases of food aversions.
d. it is better to be safe than sorry (or dead).
Ans: d
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Schizophrenic symptoms, sometimes called psychotic symptoms, that include hallucinations and delusions are known as
a. positive symptoms. b. negative symptoms. c. aberrant symptoms. d. hallucinatory symptoms.
Alcohol-related motor vehicle accidents are the leading cause of death for 15-to 24-year-olds
a. True b. False Indicate whether the statement is true or false
Which of the following illustrates seriation?
a. the ability to place sticks in order according to size b. the ability to understand that hidden objects still exist c. the ability to understand that flattening a ball of clay does not change its mass d. all of these
Some researchers believe that mirror systems
A. are found only in humans. B. are relevant to tool use but not to language. C. resulted from mutations in the FOXP2 gene. D. form the basis for the development of language.