期刊
NEUROSCIENCE AND BIOBEHAVIORAL REVIEWS
卷 80, 期 -, 页码 240-262出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.neubiorev.2017.05.006
关键词
Tourette syndrome; Tic disorders; Comorbidity; Attention deficit hyperactivity disorder; Impulsivity; Inhibition; Inhibitory control; Neuropsychology
资金
- Canadian Institutes of Health Research (CIHR) [340559]
- Fonds de recherche du Quebec - Sante (FRQS) [27178]
- FRQS [32114]
Tourette syndrome (TS) is a neuropsychiatric disorder involving motor and phonic tics. Inhibitory control is a key issue in TS, and many disruptive or impulsive behaviors might arise from inhibitory deficits. However, conflicting findings regarding TS patients' inhibitory performance in neuropsychological tasks have been reported throughout the literature. Therefore, this meta-analysis aimed to evaluate inhibitory control through neuropsychological tasks, and to analyze the factors modulating inhibitory deficits. To this end, a literature search was performed through MEDLINE and PsycINFO, to retrieve studies including neuropsychological tasks that assessed inhibitory control in TS patients. Of the 4020 studies identified, 61 were included in the meta-analysis, for a total of 1717 TS patients. Our analyses revealed a small to medium effect in favor of inhibitory deficits in TS patients. This effect was larger in TS + ADHD patients, but pure TS patients also showed some inhibitory deficits. Therefore, deficits in inhibitory control seem to be an inherent component of TS, and are exacerbated when ADHD is concomitant.
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