The hormones adrenaline and _____ are released in the face of stress and stimulate protein receptors on nerve cells, which help explain why emotional memories may persist over time

Before Dr. Smith submits his new grant proposal to the committee, he asks several of his colleagues to read, revise, and make suggestions about his research design. He is engaging in one form of _____

Fill in the blank with correct word

Simon cringes every time he hears a dentist's drill, even when he is sitting in the waiting room of his dentist's office. In this example, cringing in the waiting room is

a. an unconditioned response. b. a conditioned stimulus. c. a conditioned response. d. an unconditioned stimulus.