Bereitschaftspotential in tic disorders: a preliminary observation.
Neurol India
;
2002 Dec; 50(4): 487-9
Article
in English
| IMSEAR
| ID: sea-120126
ABSTRACT
Sensory phenomena in tic disorders such as Tourette's syndrome are known but are substantiated by only a handful of studies. In this preliminary report, we studied premonitory urge, a type of sensory phenomenon in three patients of tic disorders. Bereitschaftspotential, a movement-related cognitive potential indicative of motor preparation, was assessed in these patients. As bereitschaftspotential was observed in all our cases prior to occurrence of tics, it is speculated that tics are not entirely involuntary but are quasi-volitional in nature. Bereitschaftspotential may thus represent a neurophysiological marker of premonitory urge in tic disorders. Implications of exploring the voluntary nature of tics are discussed.
Full text:
Available
Index:
IMSEAR (South-East Asia)
Main subject:
Tic Disorders
/
Humans
/
Tourette Syndrome
/
Compulsive Personality Disorder
/
Contingent Negative Variation
/
Obsessive-Compulsive Disorder
Language:
English
Journal:
Neurol India
Year:
2002
Type:
Article
Similar
MEDLINE
...
LILACS
LIS