单词 | vocal tic |
释义 | vocal ticvocal ticvocal ticvocal ticvocal ticPhonic tic Neurology An involuntary sound produced by moving air through the nose, mouth, or throat; VTs include throat-clearing sounds and sniffing to grunts to verbalizations of syllables and words, utterances of inappropriate, undesired statements or obscenities or coprolalia Types Simple–single sounds–eg, throat clearing, barking, sniffing; complex–verbalizations–expression of words–eg, coprolalia, echolalia, palilalia–repeating of person's own words; VTs frequently change and vary in severity over time; remissions and exacerbations are common. See Tourette syndrome. Cf Motor tic. |
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