Loss of contact with reality, including hallucinations and/or delusions, is a distinguishing characteristic of psychosis

Researcher Eric Kandel discovered that when he tapped a certain body spot Aplysia, a sea slug, one time, the slug would retract its gills in a defensive maneuver. However, when Kandel touched the same spot repeatedly, the slug would eventually ignore the stimulus. This change in response demonstrates _____.

a. habituation b. sensitization c. extinction d. acquisition

Children who are in the early phases of the preoperational stage CANNOT exhibit which

of the following? a. Object permanence b. Conservation c. Simple counting abilities d. Simple symbolic reasoning e. Simple language usage