(1) Since the usefulness of chromosome differential banding techniques has become fully established, several descriptions of chromosome 10 short arm trisomy have been published (Schleiermacher et al., 1974; Roux et al., 1974; Cantu et al., 1975; Grosse et al., 1975; Moric-Petrovic et al., 1976; Turleau et al., 1976; Johnson et al., 1977; Yunis and Lewandowski, 1977).
(2) To investigate whether language in schizophrenia deteriorated progressively, 11 schizophrenic subjects, 9 manic subjects and 9 controls were re-tested after an interval of three years using the computer-assisted syntactical analysis technique of Morice.