Upload
coburgpsych
View
509
Download
0
Embed Size (px)
Citation preview
Total Deprivation Partial Deprivation
Sleep Deprivation:
No sleep 24 hoursSome sleep in 24 hours
Lack of sleep
Effects of sleep deprivation
Total Deprivation Partial Deprivation- Sustained attention
impaired - Periods of microsleep
- Hat phenonmenon - Irritability - Confusion
- Delusions / Hallucinations - Sleep Deprivation Psychosis
- Psychological (cognitive, affective, and behavioural)
- Physiological effects (excluding heart rate, respiration, blood pressure and
body temperature - Chronic sleep deprivation can lead to cardiovascular disease, mood disorders
and immune deficiencies
Complex cognitive task performance may not be impacted by disrupted sleep as severely as simple cognitive task performance
Effects of the loss of REM and NREM sleep
HOT TOPICREM deprivation - memory and learning problems
and mood disturbances
Some say:
NREM deprivation - disturbances in growth and restoration of the body’s resources
BUT NOT ALL FINDINGS SUPPORT THIS
Sleep recovery patterns
Generally an extended good nights sleep is enough to recover from sleep deprivation
Sleep DEBT
REM Rebound
MicrosleepsLike any debt,
accumulates. Can easily be ‘paid off’ with adding a few hours to your sleep
cycle
HUGE extension on time spent in REM sleep
Brief involuntary period of sleep during wakeful activity
Microsleeps
Are defined as a brief period of drowsiness/sleeping which occur while a person is awake that last for a few seconds up to 2 minThe person loses awareness of internal state and external environment (That is why it is a ASC)
EEG shows lower frequency, higher amplitude alpha/theta brain waves (similar to light sleep)