sleep deprivation

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loss or absence of parts, organs, powers, or things that are needed.
emotional deprivation deprivation of adequate and appropriate interpersonal or environmental experience, usually in the early developmental years.
maternal deprivation the result of premature loss or absence of the mother or of lack of proper mothering; see also maternal deprivation syndrome.
sensory deprivation a condition in which an individual receives less than normal sensory input. It can be caused by physiological, motor, or environmental disruptions. Effects include boredom, irritability, difficulty in concentrating, confusion, and inaccurate perception of sensory stimuli. Auditory and visual hallucinations and disorientation in time and place indicate perceptual distortions due to sensory deprivation. Symptoms can be produced by solitary confinement, loss of sight or hearing, paralysis, and even by ordinary hospital bed rest.
sleep deprivation a nursing diagnosis accepted by the North American Nursing Diagnosis Association, defined as prolonged periods of time without sleep (sustained, natural, periodic suspension of relative consciousness).
thought deprivation blocking (def. 2).

sleep deprivation

a sufficient lack of restorative sleep over a cumulative period so as to cause physical or psychiatric symptoms and affect routine performances of tasks.

sleep deprivation

A general term for a state of sleep inadequacy at the appropriate time, which may be acute or chronic.

sleep deprivation

Sleep disorders A prolonged period without the usual amount of sleep. See Driver fatigue, Poor sleeping hygiene, Sleep disorders, Sleep-onset insomnia.


a period of rest during which volition and consciousness are in partial or complete abeyance and the bodily functions partially suspended; a behavioral state marked by characteristic immobile posture and diminished but readily reversible sensitivity to external stimuli.

sleep deprivation
caused in animals by constant stimulation, e.g. preventing them from lying down, is followed by a compensatory period of prolonged sleep whenever the opportunity arises.
sleep disorders
put to sleep
a common euphemism for euthanasia.
rapid eye movement sleep
that type of sleep characterized by low voltage but fast electroencephalographic activity and little muscular activity except of the ocular muscles. Believed to be the critical or necessary component of sleep. Called also 'sleep of the body' and paradoxical sleep. Called also REM.

Patient discussion about sleep deprivation

Q. what are the affects of sleep deprivation, and can I counteract them? I’m a college student and I’ve been sleeping for 5-6 hours a night for the past month…what symptoms should I expect? And how can I counteract them?

A. I studied this just 2 days ago:

Studies on sleep deprivation are actually beginning to show that people do not require as much sleep as traditionally taught. While sleep deficits effect first auditory acuity, and can even cause people to go into what are called microsleeps, researchers are finding that when people are being deprived of sleep they actually sleep more efficiently (spending more time in stages 3 and 4 of sleep) The problem is that people do not train themselves properly to shortened sleep periods, thus stuggle to adapt when they cannot receive the customary eight hours. Ideally, with adequate control and preperation, people can sleep for 4 hours a night and be fully cognatively functional.

(DaVinci purportedly survived on 15min cat naps taken every four hours his entire adult life, and he was certainly on his toes)

Just thought you'de find that interesting

See Pinel's chapter on Sleep in his text "Biopsychology" for more. (Pinel, 2009)


More discussions about sleep deprivation
References in periodicals archive ?
Suffice it for the moment to say that chronic sleep deprivation certainly undermines our energy and enthusiasm to undertake a variety of activities, and we are not necessarily aware that we much more likely to fall asleep when sedentary and unstimulated.
Now we're recognising the true extent of sleep deprivation amongst new parents and the effects it has on them during daylight hours.
Previous studies have linked sleep deprivation with weight gain and also shown how disrupted sleep also disrupts levels of stress -- and hunger-related hormones during waking hours.
The facility will be used to analyse the effects of shift-working and sleep deprivation on general performance.
The effects of the sleep deprivation were carefully observed.
They should also be made aware of the effects of sleep deprivation and how it can impact their class/lab activities.
While, broadly speaking, the effects of sleep loss are intuitive (as it is well known that sleep deprivation causes a decrease in mental functioning), scientific findings suggest that effects of sleep deprivation are far more complex than "common sense" notions imply and impact on mental abilities in an equally complex manner.
In comparison, pathology-related sleep deprivation refers to pathologies which cause a fracturing of sleep with arousals and awakenings, instead of large, consolidated periods of wakefulness, Boone says.
Sleep deprivation can have serious effects on health in the form of physical and mental impairments.
Given the economic and other non-altruistic factors associated with being on emergency room (ER) call (poor remuneration, general lack of appreciation by "entitled" patients, increased exposure to litigation, risk of EMTALA violations, chronic sleep deprivation, and a lifestyle that often shortchanges self and family), it seems reasonable to ask: Are physicians crazy for taking ER call?
Research shows that 97 per cent of bed partners suffer from chronic sleep deprivation.
John's wort (Hypericum perforatum) extract on 72 hour sleep deprivation induced anxiety like behaviour and oxidative damage in mice.