Before learning takes place, a(n) __________ stimulus must consistently produce a reflexive, or __________, response

The myelination that occurs during early development allows

a. cerebral lateralization to take place b. neurons that are not used to die off c. new neuronal connections to form more easily d. faster transmission of electrical signals in the brain

Sara, age 3, sees a little boy fall and hurt himself, and a look of concern appears on her face. She is probably experiencing

fear. sadness. empathy. frustration.