[Various neurophysiological aspects of examination of children with Gilles de la Tourette's syndrome].

EEG mapping was used to study the ECG and brain electric activity in 45 normal children and in 33 patients with Gilles de la Tourette's syndrome. Significant differences were discovered in the test parameters in groups of patients and normal children as well as in subgroups of patients with different varieties of the syndrome. Analysis of the ECG has shown that 78% of children with typical Tourette's syndrome manifest neurovegetative regulation impairment in the form of bradycardia and cardiac arrhythmia. In tourette-like disorders within the framework of schizophrenia and encephalopathy and in normal test subjects, such alterations occur much more seldom. The data of the EEG mapping and analysis of spectral power of different rhythmic ranges attest to the existence of mainly nonspecific changes in the EEG common to all varieties of the syndrome. At the same time a tendency was recorded toward definite abnormalities in one or another patients' group. The data obtained can be of help for differential diagnosis of the syndrome under study.