According to Jean Piaget, a major accomplishment during the sensorimotor stage of cognitive development is grasping the concept of object permanence

Endorphins and enkephalins have the same physiological effect on the body as opioids in that they produce

A) heightened arousal and pain relief. B) disorientation and sedation. C) pain relief and sedation. D) euphoria and heightened arousal.

According to Erikson, what is the primary task of the teenage years?

a. Sexual maturation b. Gaining metacognitive abilities c. Developing an identity d. Becoming generative