[Surface electromyography in the diagnosis of lateral dominance in children: psychomotor features].
Surface electromyography was used to verify the lateral dominance in 100 six to fourteen years old normal children. Electromyographic records were obtained during verbal stimulation. Dexterity was found in 90, sinistrallity in 3 and indefinite dominance in 7 patients. Comparing with results from clinical examination, the electromyography seems more accurate and easy to perform. The responses obtained after verbal stimulations were attributed to a psychomotor phenomenon. Mechanisms involved in the production of muscle contractions after verbal stimulation, were not proved. Pharmacologic action of cathecolamines on the central motor neural subsystems is advanced.
Escola Paulista de Medicina, Universidade de São Paulo, Brasil.
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Jordy
D000161:Acoustic Stimulation; D000200:Action Potentials; D000293:Adolescent; D002648:Child; D004576:Electromyography / Q000379:methods*; D005260:Female; D007839:Functional Laterality / Q000502:physiology*; D006801:Humans; D008297:Male; D009119:Muscle Contraction / Q000502:physiology; D011581:Psychological Tests; D011597:Psychomotor Performance
Eletromiografia de superfície no diagnóstico da dominância lateral em crianças: aspectos psicomotores.