AP Psych - Unit 1.5 Vocab

Circadian Rhythm

24-hour sleep cycle

EGG Patterns

The electrical activity of the brain recorded through EGG which helps researchers analyze different states of consciousness and sleep cycles.

Alpha Waves

Brainwave patterns that occur when a person is awake but relaxed

Hypnagogic Sensations

Vivid sensory experiences, such as falling or hearing sounds, that occur during the transition from wakefulness to sleep.

Delta Waves

High amplitude brain waves associated with deep sleep

REM

Sleep stage characterized by vivid dreaming, heightened brain activity, and rapid eye movements.

REM Rebound

When the body compensates for lost REM sleep by increasing its duration and intensity in sleep cycles.

Activation Synthesis Theory

A theory of dreaming suggesting that dreams are the brain's attempt to make sense of random neural activity during REM sleep.

Consolidation Theory

A theory says sleep plays a crucial role in consolidating and stabilizing newly acquired memories, transferring them from short-term to long-term storage.

Insomnia

Consistent lack of sleep and/or inability to maintain sleep

Narcolepsy

Uncontrolled bouts of falling asleep (short or long)

Sleep Apnea

Repeated interruptions in breathing during sleep

Somnambulism (sleepwalking)

A sleep disorder occurring during non-REM sleep, where individuals walk or talk while still asleep.