WordNet

undergo a test; "She doesnt test well"
any standardized procedure for measuring sensitivity or memory or intelligence or aptitude or personality etc; "the test was standardized on a large sample of students" (同)mental test, mental testing, psychometric test
the act of undergoing testing; "he survived the great test of battle"; "candidates must compete in a trial of skill" (同)trial
the act of testing something; "in the experimental trials the amount of carbon was measured separately"; "he called each flip of the coin a new trial" (同)trial, run
a hard outer covering as of some amoebas and sea urchins
put to the test, as for its quality, or give experimental use to; "This approach has been tried with good results"; "Test this recipe" (同)prove, try, try out, examine, essay
achieve a certain score or rating on a test; "She tested high on the LSAT and was admitted to all the good law schools"
determine the presence or properties of (a substance)
show a certain characteristic when tested; "He tested positive for HIV"
be able to accommodate for sleeping; "This tent sleeps six people"
be asleep (同)kip, slumber, log Z''s, catch some Z''s
a period of time spent sleeping; "he felt better after a little sleep"; "there wasnt time for a nap" (同)nap
a natural and periodic state of rest during which consciousness of the world is suspended; "he didnt get enough sleep last night"; "calm as a child in dreamless slumber" (同)slumber
a torpid state resembling deep sleep (同)sopor
having or involving or consisting of more than one part or entity or individual; "multiple birth"; "multiple ownership"; "made multiple copies of the speech"; "his multiple achievements in public life"; "her multiple personalities"; "a pineapple is a multiple fruit"
the product of a quantity by an integer; "36 is a multiple of 9"
an examination of the characteristics of something; "there are laboratories for commercial testing"; "it involved testing thousands of children for smallpox"
the act of subjecting to experimental test in order to determine how well something works; "they agreed to end the testing of atomic weapons"
tested and proved useful or correct; "a tested method" (同)tried, well-tried
tested and proved to be reliable (同)time-tested, tried, tried and true

PrepTutorEJDIC

(人の能力などの)『試験』,考査,テスト / (物事の)『試験』,検済,試錬,実験《+of+名》 / 化学分析;試薬 / =test match / …‘を'『試験する』,検査する / …‘を'化学分析する / (…の)試験を受ける,試験をする《+for+名》
〈U〉『眠り』,『睡眠』[『状態』] / 〈C〉《a sleep》一眠り[の時間] / 〈U〉永眠,死 / 〈U〉(一時的な手足などの)無感覚,しびれ;冬眠(hibernation) / 〈U〉目やに / 『眠る』 / 『文眠なる』,(死んで)葬られている / 〈人〉‘を'泊める[設備がある] / 《a+形容詞+sleepを目的語にして》…‘を'眠る
多数の部分(要素)から成る,複合の,複式の / 倍数

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2012/11/14 17:22:00」(JST)

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MSLT Scores
Minutes	Sleepiness
0–5	Severe
5–10	Troublesome
10–15	Manageable
15–20	Excellent

The Multiple Sleep Latency Test (MSLT) is a sleep disorder diagnostic tool. It is used to measure the time elapsed from the start of a daytime nap period to the first signs of sleep, called sleep latency. The test is based on the idea that the sleepier people are, the faster they will fall asleep.

The MSLT is used extensively to test for narcolepsy, to distinguish between physical tiredness and true excessive daytime sleepiness, or to assess whether treatments for breathing disorders are working. Its main purpose is to discover how readily a person will fall asleep in a conducive setting, how consistent or variable this is, and the way they fall asleep in terms of REM sleep and other brain patterns. This can be used to identify and differentiate between various sleep problems.

The test consists of four or five 20-minute nap opportunities set two hours apart, often following an overnight sleep study. During the test, data such as the patient's brain waves, EEG, muscle activity, and eye movements are monitored and recorded. The entire test normally takes about 7 hours during the course of a day.

History

The Multiple Sleep Latency Test was created in 1977 by sleep pioneers William C. Dement and Mary Carskadon.^[1]^[2]^[3]^[4] It developed out of repeating a project done in 1970 by Dr. Dement called the 90-minute day.^[5] They informally called the 0–5 minute range the twilight zone due to its indication of extreme physical and mental impairment.

Typical procedure

Preparation: On the day of the test the patient is asked not to consume any stimulants, such as tea, coffee, colas, and chocolate.

Often a formal sleep study has been performed the night before.
Sometimes urine screening is done to make sure no substances exist in the subject's body that might interfere with sleep.
The patient may be asked to fill out a pre-test questionnaire.
Electrodes are attached to the patient's head to record brain waves.
Electrodes are attached by the eyes to record eye movement.
Electrodes are attached to the chin to detect muscle tone.
Heart beat may also be monitored.
The patient is asked to perform simple tasks to test that the equipment is working properly.
The patient is asked to nap for 20 minutes, and then is awakened.
The nap process is repeated every 2 hours for a total of four or five times.
The patient may be asked to fill out a post-test questionnaire.

A clinical neurophysiologist, neurologist or sleep specialist will review the results and inform the patient or the patient's primary care physician of the interpretation of the test result in the context of the clinical problem.

References

^ Carskadon, M.A.; Dement, W.C. Sleep tendency: an objective measure of sleep loss. Sleep Research 6: 200, 1977.
^ Richardson, G.S.; Carskadon, M.A.; Flagg, W.; Van den Hoed, J.; Dement, W.C.; Mitler, M.M. Excessive daytime sleepiness in man: multiple sleep latency measurement in narcoleptic and control subjects. Electroencephalogr Clin Neurophysiol. 1978 Nov;45(5):621–627.
^ Carskadon, M.A.; Dement, W.C.; Mitler, M.M.; Roth, T.; Westbrook, P.R.; Keenan, S. Guidelines for the Multiple Sleep Latency Test (MSLT): a standard measure of sleepiness. Sleep 1986; 9:519–524
^ Thorpy, M.J.; Westbrook, P.; Ferber, R.; Fredrickson, P.; Mahowald, M.; Perez-Guerra, F.; Reite, M.; Smith, P. The clinical use of the Multiple Sleep Latency Test. Sleep 1992; 15:268–276.
^ Carskadon, M.A.; Dement, W.C. Sleep studies on a 90-minute day. Electroencephalogr. Clin. Neurophysiol. 39: 145–155, 1975.

External links

Mary Carskadon's page on the MSLT [1]

UpToDate Contents

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1. 眠気の定量化 quantifying sleepiness
2. 過度な日中の眠気を有する患者へのアプローチ approach to the patient with excessive daytime sleepiness
3. 特発性過眠症 idiopathic hypersomnia
4. Clinical features and diagnosis of narcolepsy in adults
5. 小児における睡眠障害の評価 assessment of sleep disorders in children

English Journal

The impact of increasing sleep restriction on cortisol and daytime sleepiness in adolescents.

Voderholzer U, Piosczyk H, Holz J, Feige B, Loessl B, Kopasz M, Riemann D, Nissen C.SourceDepartment of Psychiatry and Psychotherapy, University Medical Center Freiburg, Germany; Schoen Clinic Roseneck, Prien, Germany.
Neuroscience letters.Neurosci Lett.2012 Jan 24;507(2):161-6. Epub 2011 Dec 17.
Sleep restriction is a widespread phenomenon, specifically in adolescents. This study investigated the impact of increasing sleep restriction in adolescents on cortisol levels and daytime sleepiness. Eighty-eight healthy adolescents were randomized to five sleep restriction protocols (four consecuti
PMID 22198375