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A hypnic jerk, hypnagogic jerk, sleep start, sleep twitch, myoclonic jerk, or night start is a brief and sudden involuntary contraction of the muscles of the body which occurs when a person is beginning to fall asleep, often causing the person to jump and awaken suddenly for a moment.
These medications decrease or eliminate both the leg jerks and the arousals. These medications are also successful for the treatment of restless legs syndrome . In one study, co-careldopa was superior to dextropropoxyphene in decreasing the number of leg kicks and the number of arousals per hour of sleep.
The muscle jerks consist of symmetric, mostly generalized jerks, localized in the arms and in the shoulders and also simultaneously with a head nod; both the arms may fling out together and simultaneously a head nod may occur. Symptoms have some variability amongst subjects. Sometimes the entire body may jerk, just like a startle response. As ...
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Motor tics are movement-based tics affecting discrete muscle groups. [4]Phonic tics are involuntary sounds produced by moving air through the nose, mouth, or throat. They may be alternately referred to as verbal tics or vocal tics, but most diagnosticians prefer the term phonic tics to reflect the notion that the vocal cords are not involved in all tics that produce sound.
Congenital amusia, as the term suggests, occurs as a result of birth or one's genes; while acquired amusia occurs as a result of accidental brain damage, stress, or cognitive deficits. Symptoms of this disease vary from lack of basic melodic discrimination, recognition despite normal audiometry, above average intellectual, memory, as well as ...
The Government should review legislation that restricts protest based on “knee-jerk public opinion”, a think tank has said. Cross-party think tank Demos said it had found “overwhelming ...
The activation of the facial motor nucleus causes a jerk of the head while an activation in the spinal cord causes the whole body to startle. [ 6 ] During neuromotor examinations of newborns, it is noted that, for a number of techniques, the patterns of the startle reaction and the Moro reflex may significantly overlap, the notable distinction ...