[On the mental structure of mongolism (author's transl)].

Forty-nine mongol and 48 non-mongol test persons of equivalent age and intelligence were selected and investigated with respect to intelligence components (S-I-T), motoricity (LOS), fine motoricity (KP), memorizing capacity (BA), working tempo (BS) and organization of the perceptual field (MZT). There were significant differences in S-I-T in favor of non-mongols in verbal tasks and in the LOS in favor of the mongoloids in rhythmic tasks. There was a tendency for the mongoloids to have poorer results for working tempo and fine motoricity. The differences in capacity to memorize and organization of perception were not significant.