AP PSYCHOLOGY

Detailed explanation-1: -Microsleeps-brief sidesteps into sleep lasting only a few seconds. Sleep deprivation-any significant loss of sleep, resulting in problems in concentration and irritability.

Detailed explanation-2: -Sleep Apnea: Disorder in which a person stops breathing for nearly half a minute or more.

Detailed explanation-3: -Sleep occurs in five stages: wake, N1, N2, N3, and REM.

Detailed explanation-4: -The correct answer is choice c, which affirms REM sleep alternates throughout the night with the other phases of sleep and increases in duration.

Detailed explanation-5: -How can an investigator determine whether a sleeper is in REM sleep? Examine EEG pattern and eye movements. During which part of a night’s sleep is REM most common? REM becomes most common toward the end of the night’s sleep.