DMT, a short-acting hallucinogen that is usually ineffective when taken orally, is found in

Geoff's friends tease him for visiting the public library during summer holidays. As a result, Geoff stops visiting the library. In this example, the teasing acted as ________

a. positive punishment. b. negative punishment. c. positive reinforcement. d. negative reinforcement.

If a person is damaged at the top of the motor cortex on theright side of the brain, what would

result? A) a numb feeling in the face B) paralysis of the left foot C) numbness in the left foot D) paralysis of the neck