Research on loneliness indicates that, compared to people who are not lonely, those who are lonely tend to be ____ intelligent and ____ attractive

Human beings learn from:

A. direct instruction B. modeling C. experience D. all of the above

The notion that narcolepsy involves faulty brain regulation of sleep is supported by the observation that

a. mania commonly occurs with narcolepsy. b. people with narcolepsy show no problems in staying asleep. c. people with narcolepsy generally enter REM sleep directly from the waking state. d. slow-wave sleep intrudes into the awake state in people with narcolepsy. e. people with narcolepsy show problems in eye-tracking similar to those noted in alcoholism.