Sean yawned during a meeting and within a few minutes several others attending the meeting began to yawn. The brain cells activated in others by Sean's yawn are called ______

Garfield is having great difficulty controlling his appetite. All he wants to do is eat and no matter how much he eats he is still hungry

His weight is approaching 400 pounds and he still constantly wants to eat. His physician says the problem is due to a disorder in a specific center of the brain. The brain center is most likely the __________. a. medulla b. cerebral cortex c. thalamus d. hypothalamus

When 8-year-old Chris brought home a report card with all A's, his parents gave him one dollar for each "A." Chris's parents were attempting to use __________ to shape Chris's future behavior

a. negative reinforcement c. punishment b. positive reinforcement d. self-efficacy