Long before Kaita Castro was born, she was able to soothe herself in utero by sucking on her thumb. Once Kaita was born, she utilized the sucking reflex along with the ___________ reflex to nurse

Cohort effects are examples of

A) sociocultural-graded influences. B) age-graded influences. C) history-graded influences. D) nonnormative life events.

Initially, infants respond to videos of people

A) as make-believe characters. B) in a fearful manner. C) with indifference, paying little attention to the characters. D) as if viewing people directly.