Recent research has shown that child abuse can affect brain development. What is one finding?
A. The myelin surrounding neurons starts to deteriorate.
B. The prefrontal cortex's ability to make rational decisions becomes impaired.
C. The amygdala becomes more active, even in unemotional situations.
D. There is a reduction in brain areas involved in processing emotional cues.
Answer: D
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The hippocampus appears to be critically involved in the formation of new _____ memories.
A) procedural B) episodic C) semantic D) primed
Humans are most sensitive to frequencies in the range of:
a. 4,000 to 10,000 Hz b. 2,000 to 10,000 Hz c. 2,000 to 4,000 Hz d. 10,000 to 12,000 Hz
In adult humans, successive exposures to amphetamine have been shown to produce
a. intensification of most of its subjective effects b. tolerance to all of its subjective effects c. intensification of some of its effects while other effects exhibit tolerance d. virtually no tolerance to amphetamine's subjective effects
A particularly dangerous (often fatal) combination of drugs is
a. marijuana and hashish. b. amphetamines and dexedrine. c. alcohol and barbiturates. d. caffeine and nicotine.