P. F. MacNeilage, M. G. Studdert-Kennedy, and B. Lindblom (1987) proposed a progression for handedness in primates that was supposed to account for the evolution of a right bias in human handedness. To test this proposal, the authors performed meta-analyses on 62 studies that provided individual data (representing 31 species: 9 prosimians, 6 New World monkeys, 10 Old World monkeys, 2 lesser ape...

The relationship between handedness and divergent thinking was explored in four studies. Experiment 1 (N = 556) used the Alternate Uses Test, Experiment 2 (N = 941) tested object synthesis, and Experiment 3 (N = 965) tested ideational flexibility. No difference as a function of handedness was found in Experiment 1, but in Experiments 2 and 3 divergent thinking was significantly related to hande...

objective: there are controversial reports about factors that affect recovery from stuttering. in the ‎present study, the effect of hand dominancy, fine motor and inhibition control on late ‎recovery from stuttering was investigated among a group of kurdish-persian children who ‎stuttered in iran.‎ method: twenty-two kurdish-persian children aged 7-14 years who stuttered were followed for 6 ‎ye...

BACKGROUND Left-handedness is a highly conserved marker of cerebral functional laterality in the human population; elevated rates of left-handedness have been documented in patients with unilateral coronal synostosis treated with fronto-orbital advancement. The purpose of this study was to determine whether the prevalence of left-handedness in patients with nonsyndromic unilateral coronal synos...

Complex animals display bilaterally asymmetric motor behavior, or "motor handedness," often revealed by preferential use of limbs on one side. For example, use of right limbs is dominant in a strong majority of humans. While the mechanisms that establish bilateral asymmetry in motor function are unknown in humans, they appear to be distinct from those for other handedness asymmetries, including...

Right head-turning preference is assumed to be a developmental default. This motor asymmetry seems to influence the development of other lateralised behaviours-such as handedness-as a consequence of orienting vision towards the right side of the body. To document the role of visual experience in promoting lateralised functions we assessed head-turning preference and handedness in a group of con...