P300 differences exist between Tourette's syndrome with and without attention deficiency and hyperactivity disorder in children
- 1 January 2006
- journal article
- research article
- Published by Taylor & Francis Ltd in The World Journal of Biological Psychiatry
- Vol. 7 (2), 91-98
- https://doi.org/10.1080/15622970500492723
Abstract
Objective: To study the characteristics of P300 in Tourette's syndrome (TS) with and without attention deficiency and hyperactivity disorder (ADHD). Method: Auditory evoked P300 were recorded in 19 TS only (TS–ADHD) children, 15 TS with ADHD (TS + ADHD) children and 20 unaffected control subjects, and their waveforms, amplitudes, latencies and topographies were compared at Fz, Cz, C3, C4 and Pz. Results: The TS + ADHD group showed shorter latencies than control subjects at all electrode sites (PPPPP=0.003), control and TS + ADHD groups (P=0.000), and the TS–ADHD and TS + ADHD groups (P=0.039). P300 in the TS + ADHD group tended to spread out to the left and that of the TS–ADHD group tended to spread out to the right. Conclusions: P300 differences exist between TS–ADHD and TS + ADHD in children. These suggested that establishment different development defects or delay of communications between different structures rather than a delay in maturation of the structures themselves may be involved in TS + ADHD and TS–ADHD children and ADHD symptoms in TS patients are likely a trait rather than adventitious or acquired within the TS syndrome.Keywords
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