Aunt Bea gave Opie fried chicken livers every time he made his bed. Opie began making his bed more often than he used to. In this example, chicken livers are a _______ reinforcer

Infantile amnesia

a. means that adults can remember many events that occurred in their lives before the age of 3 years. b. means that infants are not able to form memories. c. may be related to the young child's well-developed sense of self. d. may be related to an individual's changing language ability.

By the end of the preschool period, the ________ has grown significantly because it becomes considerably thicker with individual fibers that help coordinate brain functioning between the two hemispheres

a) cerebral cortex b) frontal lobe c) hypothalamus d) corpus callosum