Study Reveals Family History's Role in Chronic Motor Tic Disorder in Children
A recent study has shed light on chronic motor tic disorder, a condition that affects children and is more common than Tourette syndrome. Researchers have found that family history plays a significant role in its development, with children more likely to be affected if they have a family history of chronic tics or twitches.
Chronic motor tic disorder is characterised by brief, uncontrollable, spasm-like movements or vocal outbursts. These tics can be triggered by various factors such as anxiety, distress, lack of sleep, fever, illness, or intense emotions. Unlike Tourette syndrome, chronic motor tic disorder does not involve both physical tics and vocal outbursts. Instead, it is more common for children to experience only one type of tic.
The exact cause of chronic motor tic disorders is not fully understood, but they are often associated with genetic factors and neurobiological influences. Imbalances in neurotransmitters like dopamine may contribute to the misfiring or incorrect communication that causes physical tics. These disorders can also be linked to conditions like Tourette syndrome and have a high comorbidity with other disorders, such as ADHD and anxiety disorders.
Boys are more likely to be affected by chronic motor tic disorder than girls. The condition typically begins before the age of 18 and resolves within 4 to 6 years. Treatment can help lessen the effect of chronic motor tic disorder on school or work life, providing relief and support to those affected.
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