What is one contribution of emotions to survival?
a. The first indication of sensorimotor adaptation
b. To provide a mechanism for species variability
c. To serve as adult-infant communication
d. To enhance fitness
c
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In adolescence,
a. white matter declines steadily. b. gray matter thins. c. white matter disappears altogether. d. gray matter grows steadily in volume.
__________ reveals that genomic imprinting can operate on the sex chromosomes
A) Cooley's anemia B) Marfan syndrome C) Homosexuality D) Fragile X syndrome
Based on their observations of chess masters and novices, Chase and Simon (1973) concluded that experts extract ______ information than novices in situations where their expertise is ______.
a. less; relevant b. less; irrelevant c. more; relevant d. more; irrelevant
Jamie plays an adventure video game in which a magic sword appears sometimes to help him score more points. The appearance of the sword is not dependent on Jamie's performance in the game. He does not know when the sword will appear, so he is always prepared to grab it. In the context of operant conditioning, the appearance of the magic sword illustrates a ________ of reinforcement.
A. variable-interval schedule B. fixed-ratio schedule C. variable-ratio schedule D. fixed-interval schedule