A neurological disorder called tardive dyskinesia is a serious side effect associated with the use of:

The research by Margaret and Harry Harlow demonstrated a need for ________ in young rhesus monkeys

a. contact comfort b. adequate nutrition c. maternal sensitivity d. a peer group

The fans love the new scoreboard at the ballpark. Every time a batter hits a home run, flashing lights on the scoreboard make it look as though an imaginary ball is leaving the field. The fans are witnessing

a. the Ponzo illusion. b. the law of proximity. c. relative motion parallax. d. the phi phenomenon.