Lecture 7: Sleep and Sexual Disorders Flashcards
Sleep Cycles (4)
- Proceed through stages of brain activity measured by EEG
- REM
- NREM
- average sleep cycle is approximately 90 minutes
REM overview (2)
- brain activity increased
2. physical paralysis
NREM overview (1)
“Non-REM”
- “deeper” stages of sleep characterized by
- increasing amounts of delta wave activity
Average time of sleep cycle
90 mintes
Sleep and Sexuality in psychosocial medicine
not indicators of disorder, but are very frequently symptoms that patients deal with
Hypnogram
Shows one sleep cycle, graph
REM Sleep (3)
- Rapid Eye Movement
- Lighter stage of sleep with dreams, partial or complete physical paralysis
- contributes less to feeling of restful sleep
Non- REM Sleep (3)
- Characterized by increasing delta wave frequency
- Assoc. with increased feeling of restfulness
- Divided into 3 increasingly “deep” stages
How Other Creatures Sleep (4)
- length of sleep cycles vary among species
- roughly correlated with metabolic rate - faster metabolism=shorter sleep cycles
- Most animals have REM and NREM cycles
- Some only sleep one hemisphere at a time- while the other hemisphere remains alert
Sleep Disorders (4)
- insomnia/hypersomnia
- narcolepsy
- breathing-related sleep disorders
- parasomnias
Insomnia (4)
- dissatisfaction with quantity or quality of sleep
- may be initial, middle, or late in sleep cycle
- Non-restorative sleep- complaint that the person does not feel rested upon awakening
- May be assoc. with physical or other psychiatric disorders
Insomnia Disorder
symptoms? (3)
How long?
- Dissatisfaction with quantity or quality of sleep that may beA. Difficulty initiating sleep
B. Frequent awakening or problems returning to sleep
C. Early awakening with problem returning to sleep - At least 3 nights a week for three months
- causes clinically significant distress or impairment
- Not fully explained by a coexisting mental disorder
Differentials to consider with sleep (3)
- Normal variations:
- age-related changes, situation variables - Circadian disturbances-late shift work, day-night reversals
- Medications, drugs or beverages
Hypersomnolence Disorder (4)
- Excessive sleepiness despite adequate sleep (7 hours)
- Recurrent sleep periods during the day or slow awakening
- Three times per week for three months
- Not related to another sleep disorder to substance use
Narcoplepsy
3 indicators
- Sudden and recurrent episodes of an irrepressible need to sleep during the day accompanied by 2 of the following:
A. Cataplexy- sudden loss of muscles tone with full consciousness, frequently precipitated by laughter
B. Hypocretin deficiency in CSF
C. Brief latency on EEG
Cataplexy
- indicator for narcolepsy
Def. sudden loss of muscle tone with full consciousness, frequently precipitated with laughter