The first neurons to be affected in Alzheimer's disease are cells that release __________.

Which of the following is TRUE?

A) Measures of temperament are not very stable over time. B) Temperament is highly consistent from infancy through adulthood. C) Easy temperament is more consistent over time than difficult temperament. D) Of the dimensions of temperament, only distractibility was consistent over time.

Infant sociability is expressed in all of the following ways EXCEPT

a) smiling, laughing, and vocalizing when looking at peers. b) exhibiting high level of social behaviors towards infants they do not know. c) showing preferences for peers they are familiar with over peers they do not know. d) showing more interest in peers than in inanimate objects.