rapid eye movement
Dreaming sleep phase
Rapid eye movement is the phase of sleep characterized by quick, darting movements of the eyes beneath closed lids, vivid dreaming, and heightened brain activity.
Usually abbreviated REM, it alternates with deeper, quieter sleep stages throughout the night.
She woke him during rapid eye movement and he recalled the dream vividly.
Persistent inability to rest
- narcolepsyNeurological excessive drowsiness condition
- apneaTemporary cessation of respiration
- parasomniaAbnormal behavior while sleeping
- sleepwalkingAmbulatory behavior during slumber
fragmentation · deprivation · disruption · restlessness · medication · treatment
Electrical signals from neurons
- neuronsSignal-transmitting brain cells
- cortexOrgan's external tissue
- thalamusBrain's signal switchboard
- brainstemLower neural trunk
EEG · neurotransmitters · synapse · hippocampus · amygdala · pons · acetylcholine · serotonin
Loss of muscle function
- atoniaLack of muscle tone
- twitchingInvoluntary muscular contractions
- breathingPulmonary gas exchange
- arousalStirring to heightened state
autonomic · involuntary · ocular · eyelid · pupil · respiration · thermoregulation
Mentally sharp and comprehensible
- nightmareFrightening dream causing wakefulness
- visionsImagined or prophetic sights
- subconsciousBelow conscious awareness
- fantasyImaginative mental wandering
imagery · surreal · hallucination · vivid · symbolism · prophetic · storytelling · adventure
Distinct periods or platforms
- NREMSleep lacking eye movement
- circadianDaily biological cycle
- rhythmPatterned stress and silence
- phaseDistinct period in sequence
periodicity · oscillation · onset · latency · architecture · transition · interval · recurrence
insomnia
Persistent inability to rest
- narcolepsyNeurological excessive drowsiness condition
- apneaTemporary cessation of respiration
- parasomniaAbnormal behavior while sleeping
sleepwalking · fragmentation · deprivation · disruption · restlessness · medication · treatment
brainwaves
Electrical signals from neurons
- neuronsSignal-transmitting brain cells
- cortexOrgan's external tissue
- thalamusBrain's signal switchboard
brainstem · EEG · neurotransmitters · synapse · hippocampus · amygdala · pons · acetylcholine · serotonin · neurophysiology
paralysis
Loss of muscle function
arousal · autonomic · involuntary · ocular · eyelid · pupil · respiration · thermoregulation
lucid
Mentally sharp and comprehensible
- nightmareFrightening dream causing wakefulness
- visionsImagined or prophetic sights
- subconsciousBelow conscious awareness
fantasy · imagery · surreal · hallucination · vivid · symbolism · prophetic · storytelling · adventure · mystery
stages
Distinct periods or platforms
phase · periodicity · oscillation · onset · latency · architecture · transition · interval · recurrence · duration
rapid eye movementnon-REM sleep
Restful phase without dreaming
NREM · deep sleep · dreamless sleep · restorative sleep · light sleep
rapid, rapidly, rapidity, rapids, eyeing, eyeless, move, moving, movement