Personality and electroencephalography: significance of epileptiform activity on mass screening...

From the mass screening EEG, 31 primary school children and 17 junior high school (Jr-HS) students with paroxysmal discharge were chosen. An equal number of children with disorganized patterns, including a few borderline ones, and with normal patterns were selected from the same classes. School performance and behavior assessments were evaluated based on the school records. Both in primary and Jr-HSs, the order of school performance in these three groups was as follows (shown hereafter--an average score of seven subjects for primary school children; that of 9 for Jr-HS). Firstly, normal EEG group (21.5 +/- 5.53; 30.1 +/- 6.08); secondly, epileptiform EEG group (21.1 +/- 5.09; 27.4 +/- 6.09); lastly, disorganized EEG group (20.8 +/- 5.11; 26.2 +/- 7.32). In behavior assessments, teachers highly evaluated the children with normal EEG both in primary and Jr-HSs. On the contrary, those with disorganized EEGs were not as highly evaluated, especially in primary school.