Consciousness Flashcard 2

Front

deep sleep characterized by low frequency, high amplitude delta waves

Back

Stage 4 sleep

Front

deep sleep characterized by low frequency, high amplitude delta waves

Back

Stage 3 sleep

Front

the body goes into deep relaxation; characterized by the appearance of sleep spindles

Back

Stage 2 sleep

Front

transitional phase that occurs between wakefulness and sleep; the period during which a person drifts off to sleep

Back

Stage 1 sleep

Front

type of brain wave characteristic of the end of stage 1 NREM sleep, which has a moderately low amplitude and a frequency of 4–7 Hz

Back

theta waves

Front

type of brain wave characteristic during stage 3 NREM sleep, which has a high amplitude and low frequency of less than 3 Hz

Back

delta waves

Front

very high amplitude pattern of brain activity associated with stage 2 sleep that may occur in response to environmental stimuli

Back

K-Complex

Front

rapid burst of high frequency brain waves during stage 2 sleep that may be important for learning and memory

Back

sleep spindle

Front

consistent difficulty in falling or staying asleep for at least three nights a week over a month’s time

Back

insomnia

Front

psychotherapy that focuses on cognitive processes and problem behaviors that is sometimes used to treat sleep disorders such as insomnia

Back

cognitive behavioral therapy