Ap Psych Unit 1 Part 1

Front

What is REM sleep?

Back

REM stands for Rapid Eye Movement, a sleep stage characterized by fast and jerky movements of the eyes, increased brain activity, and vivid dreaming.

Front

What is the significance of REM rebound?

Back

REM rebound is the phenomenon where the body increases the amount of REM sleep following a period of REM deprivation, indicating that REM sleep serves a necessary biological function.

Front

What hormone is produced by the pineal gland in response to light striking the retina?

Back

Melatonin is produced by the pineal gland when light signals the suprachiasmatic nucleus, regulating sleep-wake cycles.

Front

How long does the human sleep cycle typically last?

Back

The human sleep cycle repeats itself approximately every 90 minutes.

Front

What are the stages of sleep?

Back

The stages of sleep include NREM (Non-Rapid Eye Movement) stages 1, 2, and 3, followed by REM sleep.

Front

What occurs during NREM stage 1?

Back

NREM stage 1 is the lightest stage of sleep, where a person can be easily awakened and may experience drifting thoughts.

Front

What is the primary function of sleep?

Back

Sleep serves several functions, including physical restoration, memory consolidation, and emotional regulation.

Front

What is the role of the suprachiasmatic nucleus?

Back

The suprachiasmatic nucleus is a part of the hypothalamus that regulates circadian rhythms and sleep-wake cycles in response to light.

Front

What happens to brain activity during REM sleep?

Back

During REM sleep, brain activity increases, resembling that of wakefulness, which is associated with vivid dreaming.

Front

What are the effects of sleep deprivation?

Back

Sleep deprivation can lead to cognitive impairments, mood disturbances, weakened immune response, and increased risk of chronic conditions.