AP PSYCHOLOGY

Detailed explanation-1: -Rapid eye movement (REM) sleep behavior disorder is a sleep disorder in which you physically act out vivid, often unpleasant dreams with vocal sounds and sudden, often violent arm and leg movements during REM sleep-sometimes called dream-enacting behavior.

Detailed explanation-2: -REM behavior disorder is a sleep disorder characterized by intense physical activity during REM sleep. People who experience REM sleep disorder may kick, punch, hit, grab, talk, yell, or leap out of bed while REM sleep is occurring, sometimes injuring themselves or their bed partner.

Detailed explanation-3: -INTRODUCTION Rapid eye movement (REM) sleep behavior disorder (RBD) is a parasomnia characterized by dream-enactment behaviors that emerge during a loss of REM sleep atonia. RBD dream enactment ranges in severity from benign hand gestures to violent thrashing, punching, and kicking.

Detailed explanation-4: -Causes. Scientists do not know what causes REM sleep disorder. Animal studies suggest that it has to do with certain neural pathways in the brain. In an individual without RBD, certain neural pathways inhibit muscle activity during REM sleep, and disruption in these neural pathways lead to REM sleep without atonia.

Detailed explanation-5: -RBD episodes occur during REM sleep. Normal sleep consists of a series of REM dream episodes. They occur about every 1.5 to 2 hours each night. This means that an RBD episode tends to first appear at least 1.5 hours after falling asleep.