Jerome Kagan's recent studies of shyness found that
a. most children are born as more bold than shy.
b. 20% of all children are highly responsive and excitable.
c. most people outgrow shyness by the time of college.
d. life experiences have little effect on shyness.
e. shyness is seldom consistent over time.
b. 20% of all children are highly responsive and excitable.
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Which two procedures allow researchers to visualize changes in brain activity over time?
a. PET scan and CT b. PET scan and fMRI c. MRI and fMRI d. CT scan and MRI
Infants who undergo painful medical treatments may be unusually sensitive to pain when older.
Answer the following statement true (T) or false (F)
Which of the following statements is MOST accurate concerning the onset of depression? a. The symptoms tend to be most severe when the disorder has a late onset. b. Most people only experience one depressive episode
c. The onset of depression can occur at any point in the lifespan. d. The peak age of onset is during middle or late adulthood (age 40 and on).
A researcher hangs a mobile over the crib of 4-month-old Anya. When the researcher attaches Anya's foot to the mobile with a long cord, Anya can, by kicking, make the mobile turn. The turning of the mobile is an example of a(n)
A) reinforcer. B) punishment. C) unconditioned stimulus. D) conditioned response.