Teicher and colleagues (2002) studied the chronic activation of stress responses due to childhood trauma. The researchers found ____
a. no meaningful differences in brain structures between childhood trauma victims and those who suffered no abuse
b. that the hippocampal and amygdalar volumes were very low
c. that the activity in the amygdala increased the ability to remember clearly
d. that the amygdala and hippocampus could hamper the brains ability to encode, store and retrieve memories
d
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What is the approximate rate of occurrence of males who have an extra Y chromosome, resulting in the configuration XYY?
a. Zero, because this disorder affects females only b. One in 50 to 70 c. One in 700 to 1,000 d. One in 3
Rats are more likely to form a smell-sickness association than a light-sickness association, suggesting that rats have:
A) an inability to associate a light with any consequence. B) evolved to not associate lights with smell. C) learned some associations more easily than others because of natural selection. D) evolved to easily associate sickness with any stimulus in their environment.
Are there sex differences in height and weight between the ages of 3-6 years? Explain
What will be an ideal response?
Studies of identical twins reared apart are useful for estimating genetic and environmental contributions to traits because
A. the twins share genetic, but not environmental factors. B. environmental factors can be controlled. C. they represent a unique gene-environment interaction. D. concordance rates are controlled.