Frequency of minor nervous dysfunction in school children.

A study was made on 88 third grade school children to determine the frequency of minor nervous dysfunction (MND) Touwen and Prechtl). The study consisted of a neurological and an motoscopic examination as well as a visuomotor performance test (Gleiss). The following results were obtained: 1. Suspected MND was found in 15.9% of the population. 2. Only two children had optimal performance according to Prechtl's optimality concept. 3. If the diagnosis MBD is made excluding the behavioral description as a diagnostic criterion, no significant statistical correlation was found with school marks or social class. 4. The specific character of Lempp's "frühkindliches exogenes Psychosyndrom" and the behavioral disturbances described seems to us to be questionable. We found such disturbances with our methods as frequently in children with disturbed organic brain function as in children from a low social class.