Electroencephalogram was examined in 68 cases of nocturnal enuresis as well as in 3 cases of irritable bladder and 1 healthy person as control.
1) In the control group, only one case of irritable bladder was regarded as borderline cases of E. E. G. and the rest showed the normal E. E. G., whereas, in nocturnal enuresis group (68 cases), 51 cases (75.1%) as borderline cases of E. E. G. and 12 cases (17.6%) as normal.
2) For the kind of abnormal E. E. G., dysrhythmia, spike and wave complex, and high voltage slow wave were comparatively frequently recognized.
As the findings of E. E. G. were synthetically observed, 28 cases (41.3%) showed the lower threshold for convulsion, 13 cases (19.2%) epileptic disorder, 5 cases (7.3%) dysrhythmia, 5 cases (7.3%) brain damage wave and 5 cases (7.3%) borderline E. E. G. Adding the number of patients showing the lower threshold for convulsion to the patients showing epileptic disorder, the total number became to 41 cases, which were corresponded to 80.4% of 51 cases with abnormal E. E. G. This suggested that convulsion-waves were frequently found in abnormal E. E. G. of nocturnal enuresis patients
3) Examining the relations between the findings of E. E. G. and the direct effects of various therapeutic drugs, it was revealed that, the comparatively higher cure rates were obtained in normal E. E. G. group with chlorpromazine, in esileptic disorder and lower threshold for convulsion group with antispasmodics (chiefly composed of Aleviation), in dysrhythmia and borderline E. E. G. group with psycho-motor stimulants (Ritalin, Melatrane and Pervitin) or chlorpromazine.
