A person is conditioned to fear white rats. Soon after, she also begins to fear white cats, white dogs, and white rabbits. Her new, unconditioned fears result from _______

As a child, Rico suffered damage to the ventromedial area of his prefrontal cortex. As an adult, Rico will

A) have difficulty with language-dependent activities. B) rarely react with empathy to others' distress. C) be overwhelmed by others' distress. D) be especially prosocial and empathetic toward others.

During adolescence and adulthood, cognitive functions such as memory and judgment generally become more complex. According to the text, the neurological event most closely associated with such changes is:

a. an increase in the number of neurons in the brain b. an increase in the overall size of the neurons in the cortex of the brain c. a decrease in the amount of myelin present in the brain d. a decline in gray matter that occurs after childhood