The electroencephalographic findings in 37 children with convulsive disorders were analysed in order to correlate the different clinical manifestations with paroxistic patterns. The results have showed that the bioeletrical patterns of paroxistic activity did not present morphological differences is to give basis for an electro-clinical correlation. One of the main characteristics of focal epileptic discharges were its inconstant clinical manifestations, probably related to the cerebral linkage with homo and contro lateral cerebral hemispheres.