hypnic jerks

hypnic jerks
sudden brief contractions at the onset of sleep, usually in the lower limbs but sometimes also of the head and upper limbs.

Medical dictionary. 2011.

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  • Hypnic jerk — A hypnic jerk, hypnagogic jerk, sleep start, or night start, is an involuntary myoclonic twitch which occurs during hypnagogia, just as a person is beginning to fall asleep, often causing them to awaken suddenly. Physically, hypnic jerks resemble …   Wikipedia

  • Myoclonus — Classification and external resources ICD 10 G25.3 ICD 9 333.2 …   Wikipedia

  • Sleep — Waking up redirects here. For other uses, see Waking Up (disambiguation). This article is about sleep in general; for specifically non human sleep see Sleep (non human); for other uses, see Sleep (disambiguation). Sleeping child Sleep is a… …   Wikipedia

  • Non-rapid eye movement sleep — slow eyes redirects here. For sloe eyes, see Prunus spinosa. Non rapid eye movement, or NREM is, collectively, sleep stages 1 – 3, previously known as stages 1 – 4. Rapid eye movement sleep (REM) is not included. There are distinct… …   Wikipedia

  • Periodic limb movement disorder — Classification and external resources ICD 9 327.51 DiseasesDB 29476 …   Wikipedia

  • Hypnagogia — (Greek ὕπνος, húpnos sleep + the root found in ἄγω, ágō to lead away, conduct, convey , ἀγωγεύς, agōgeús conveyor , ἀγωγή, agōgḗ abduction, transport, leading away etc.), often misspelled hypnogogia , is a term coined by Alfred Maury for the… …   Wikipedia

  • Nocturnal myoclonus — Nocturnal myoclonus, also called Periodic Limb Movement Disorder (PLMD), is a sleep disorder where the patient moves limbs involuntarily during sleep and has symptoms or problems related to the movement. If the patient moves limbs during sleep… …   Wikipedia

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