A local and habitual convulsive motion of certain muscles; especially, such a motion of some of the muscles of the face; twitching; velication; -- called also spasmodic tic.
(Synonym: habit spasm). Habitual movements which may range from sniffing to throat clearing to grimacing, etc. which are incessantly repeated in situations in which they are not called for (or even appropriate). The affected individual may or may not be aware of them -- and may or may not be able to consciously control them.
An involuntary, sudden, rapid, recurrent, nonrhythmic, stereotyped motor movement or vocalization.
repetitive, irregular stereotypic movements (or vocalizations).
spasmodic movement or twitching
An involuntary muscle spasm.
an involuntary, repetitive movement such as a twitch
An intermittent, involuntary, spasmodic movement of a group of muscles, often without an obvious external stimulus. Vocal tic is a sound made involuntarily.
stereotyped, involuntary, spasmodic, nonrhythmic movement or vocalization. Tics are experienced as virtually irresistible although mild forms can be surpressed to some extent. Stress and anxiety typically exacerbrate the condition. See also: Tourette Syndrome.
a local and habitual twitching especially in the face
means the smallest price movement of the Index.
An involuntary muscular contraction; a twitch or movement.
A repetitive, involuntary spasm that increases in severity when it is purposefully surpressed. Tics may be motor (such as muscle contractions or eye blinking) or vocal.
Repeated involuntary contractions of muscles, such as rapid head jerks or eye blinks, as in Tourette's syndrome; may be under partial voluntary control (for example, can be temporarily suppressed); nonepileptic.
an involuntary, spasmodic, repetitive, stereotyped movement of small groups of muscles, which serves no apparent purpose. An individual with a tic may try to disguise or hide the tic in a seemingly purposeful movement, and the movement may ultimately be shaped into a mannerism.
Characterized by stereotyped, purposeless, and irregularly repetitive movements. Gilles de la Tourette's syndrome is the most common and severe form of multiple tic disorder.
An involuntary movement (motor tic) or involuntary vocalization (vocal tic)
An involuntary spasm or twitching of a muscle.
A tic is a sudden, repetitive, stereotyped, nonrhythmic, involuntary movement (motor tic) or sound (phonic tic) that involves discrete groups of muscles. Tics can be invisible to the observer (e.g.; abdominal tensing or toe crunching). Movements of other movement disorders (e.g.; chorea, dystonia, myoclonus) must be distinguished from tics.