REM rebound
An increase in REM sleep duration and intensity following a period of REM sleep deprivation or suppression.
Full Definition
A compensatory physiological response where the brain increases both the amount and intensity of REM sleep after being deprived of this sleep stage. REM rebound commonly occurs after discontinuing REM-suppressing medications (such as antidepressants), following alcohol withdrawal, or after periods of severe sleep restriction. During rebound periods, patients may experience more vivid dreams, nightmares, or unusual dream content due to the heightened REM activity. This phenomenon demonstrates the critical importance of REM sleep for brain function and the body's drive to maintain sleep stage balance over time.
Usage
Usage note: Often associated with medication changes or substance withdrawal.
In Context
- "The patient experienced intense REM rebound with vivid nightmares after discontinuing their antidepressant medication." — Medication withdrawal documentation
- "REM rebound following alcohol cessation contributed to the patient's sleep disturbances during early recovery." — Substance abuse treatment notes