The perspiration to the tone is a

Bright light affects the timing of body rhythms by reducing the amount of

a. melatonin. b. serotonin. c. acetylcholine. d. androgens.

Which of the following is an example of negative reinforcement? a. A mother picks up her infant when he cries, which then stops his crying, thereby reducing the mother's levelof annoyance

b. A father picks up his infant when she cries, thereby increasing the likelihood that she will cry to be picked up again in the future. c. A grandmother gives her granddaughter a "time out" when she misbehaves, thereby leading thegranddaughter to calm down. d. A grandfather gives his grandson $10 for every "A" on his report card, thereby strengthening his grandson'sstudy habits. e. A caregiver removes a child from the "block play center" when he is throwing blocks, thereby causing himto cry.