HANDWRITING POSTURE IN LEFT-HANDERS - SEX, FAMILIAL SINISTRALITY AND LANGUAGE LATERALITY CORRELATES

Study 1 examined the incidence of inverted (IHP) and noninverted (NHP) hand postures in normal left-handers. Hand posture was found to be reliably classifiable; males employed the IHP significantly more often than females; and IHP was significantly more frequent in FS + than FS -Ss. In Study 2, Ss, were given a lateralized tachistoscopic color-naming latency task, and in Study 3, lateralized word recognition tasks. The results of these studies suggest that, because of its association with FS, hand posture is not a wholly unique new variable and that hand posture appears less promising than FS for differentiating cerebral asymmetries in left-handers. © 1979.