Tao wakes up his roommate Don so that he doesn’t miss his morning classes again. Don tells Tao, “I wish you hadn’t woken me up, I was about to land on Mars after winning a fierce battle against flying jellyfish.” What type of brain waveforms did Don display right before being awakened?

The improvement in conditions of mental hospitals in the 1800s was based in part on the belief that

a. humanistic care would help to relieve mental illness. b. patients, though incurable, deserved compassionate care. c. patients with mental disorders were not really dangerous. d. patients had the right to sue to gain better treatment.

Frequency determines _______

a. pitch b. amplitude c. timbre d. overtones