06a_Sleep and Dreaming Flashcards
Sleep wave patterns in order of increasing sleep state
Beta waves
Alpha waves
Theta waves
Delta waves
Beta waves
Alert, fully awake state
Alpha waves
Awake, rested, Relaxed state
Theta waves
Deep relaxation
Light sleep
Delta Waves
Deep sleep
[*mnemonic: D = delta = deep]
Collective term for Sleep Stages 1 through 4
Non-REM sleep (NREM)
5th Stage
REM sleep
Most vivid and elaborate dreams
*Not all dreams occur during this stage
REM sleep EEG pattern
Similar to stage 1 and stage 2
Physiological responses resemble those of awake individuals
Active/Paradoxical Sleep
Term for REM sleep
REM = combination of physiological activity and deep sleep
REM sleep in infants
Infants begin sleep in REM during the first few months of life
Accounts for 50% of sleep for 1st 6 months
Gradually changes to non-REM sleep
Characteristics of newborn sleep patterns
NREM predominated by slow wave activity
Four stages of NREM are not distinguishable until six months of age
REM sleep in adults: percentage of total sleep time
20% of total sleep time
True or False?
Older adults require less sleep than younger adults
False.
Older Adults exhibit Advanced Sleep Phase (ASP)
ASP = going to bed and waking up earlier
Effects of Sleep deprivation for more than 48 hours
Forgetfulness
Disorientation
Hallucinations
Effects of chronic sleep restriction
Impaired working memory, information processing