Ch. 8 Sleep disturbances and treatments Flashcards Preview

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Flashcards in Ch. 8 Sleep disturbances and treatments Deck (22):
1

Sleep disorder

A condition that consistently disrupts the normal NREM-REM sleep cycle

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Sleep - wake cycle

The rhythmic biological pattern of alternating sleep with wakefulness over a 24 hour period

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Circadian phase disorder

A sleep disorder that disturbs a person's ability to sleep and wake for periods of time necessary to maintain good health and wellbeing

Caused by the sleep - wake cycle being out of sync with the natural night - day cycle of the external environment

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Sleep debt

The amount of sleep loss accumulated from an inadequate amount of sleep

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Delayed sleep phase disorder

A disorder of sleep timing in which a person's sleep - wake cycle is routinely delayed by 2 hours or more from a normal sleep pattern

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Shift work

Hours of paid employment that are outside the period of a normal working day

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Shift work disorder

A circadian phase disorder caused by a person's work hours being scheduled during the normal sleep period

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Jet lag

A temporary circadian phase disorder characterised by fatigue and sleep disturbance that results from a disruption of the body's normal circadian rhythm following long periods of air travel through several time zones

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Partial sleep deprivation

Getting some sleep in a 24 - hour period but less than normally required for optimal daytime functioning

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Total sleep deprivation

Getting no sleep at all in a 24 - hour period

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REM rebound

The process whereby an individual experiences extra amounts of REM sleep after being deprived of it

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Acute partial sleep deprivation

A lack of adequate sleep time required for optimal daytime functioning; usually lasting 1 - 2 days

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Chronic partial sleep deprivation

Routinely sleeping less than the normal time needed for optimal daytime functioning

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Affective functioning

Emotional control or responsiveness

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Sleep deprivation psychosis

A disruption of mental and emotional functioning as a result of lack of sleep

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Dysomnias

A group of sleep disorders characterised by disturbance of a normal sleep pattern, including quality, amount and timing of sleep

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Parasomnias

A group of sleep disorders characterised by abnormal or unusual behaviour or physiological occurrence during sleep

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Insomnia

A sleep disorder characterised by the inability to fall asleep, frequent night - time waking or waking too early

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Sleep - onset insomnia

A sleep disorder characterised by an inability to fall asleep at the beginning of the night

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Sleep walking

A sleep disorder characterised by a sleeping person walking and sometimes completing routine activities

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Cognitive behavioural therapy (CBT)

The application of learning principles to change thought processes and human behaviour

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Bright light therapy

A treatment for circadian phase disorder that exposes people to intense amounts of artificial light for a length of time to help synchronise their sleep - wake cycle with the normal