Simple vocal tics involve
simple sounds made by moving air through the nose or mouth. Simple vocal tics
Grunting, barking, and
Sniffing, snorting, or throat-clearing.
Complex vocal tics involve
more complex sounds, including words, phrases, and sentences. A person who has
a complex motor tic may talk to him or herself, repeat his or her own words
(palilalia) or other people's words (echolalia), or use obscene words
(coprolalia). Complex vocal tics may interrupt the smooth flow of a normal
conversation or occur at the beginning of a sentence, much like a stutter or a
stammer. Complex vocal tics include statements such as:
"Yeah, that's right."
Types of motor tics
Simple motor tics involve
only one muscle group. They can be embarrassing or painful (such as jaw
snapping). Simple motor tics include:
Complex motor tics can be a
combination of many simple motor tics or a series of movements that involve
more than one muscle group. Complex motor tics are slower and often appear as
if the person is making the movements intentionally. Complex motor tics can
interfere greatly with daily activities and may be self-destructive (such as
head-banging or lip-biting). Examples include:
Obscene gesturing or gyrating
Skipping, hopping, or twirling.
In this article
This information is produced and provided by the National
Institute (NCI). The information in this topic may have changed since it was written. For the most current information, contact the National
Institute via the Internet web site at http://
.gov or call 1-800-4-CANCER.
WebMD Medical Reference from Healthwise
July 22, 2013
This information is not intended to replace the advice of a doctor.
Healthwise disclaims any liability for the decisions you make based on this