Which drug was extracted from the belladonna plant and used by the ancient Greeks for cosmetic purposes?

Evidence suggests that we consolidate our memories of recent life events during ________ sleep.

a. Stage 1 b. Stage 2 c. Stage 3 d. Stage 4 e. REM

Anything that increases the likelihood that a behavior will occur more frequently is called a(n) __________

a. aversive control b. punishment c. antecedent d. reinforcer