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Railo, H.; Tallus, J.; Hamalainen, H. – Brain and Cognition, 2011
Studies have suggested that supramodal attentional resources are biased rightward due to asymmetric spatial fields of the two hemispheres. This bias has been observed especially in right-handed subjects. We presented left and right-handed subjects with brief uniform grey visual stimuli in either the left or right visual hemifield. Consistent with…
Descriptors: Visual Stimuli, Handedness, Language Processing, Correlation
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Lengen, Charis; Regard, Marianne; Joller, Helen; Landis, Theodor; Lalive, Patrice – Brain and Cognition, 2009
Geschwind and Behan (1982) and Geschwind and Galaburda (1985a, 1985b, 1985c) suggested a correlation between brain laterality and immune disorders. To test whether this hypothesis holds true not only for the frequency of immune diseases and circulating autoantibodies, but extends also to cellular immunity, we examined the association between…
Descriptors: Brain Hemisphere Functions, Biology, Brain, Human Body
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Teixeira, Luis Augusto; Teixeira, Maria Candida Tocci – Brain and Cognition, 2007
The effect of unimanual practice of the non-preferred hand on manual asymmetry and manual preference for sequential finger movements was evaluated in right-handers before, immediately after, and 30 days following practice. The results demonstrate that unimanual practice induced a persistent shift of manual preference for the experimental task in…
Descriptors: Behavior Change, Psychomotor Skills, Experiments, Handedness
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Morton, Bruce E.; Rafto, Stein E. – Brain and Cognition, 2006
Individuals differ in the number of corpus callosum (CC) nerve fibers interconnecting their cerebral hemispheres by about threefold. Early reports suggested that males had smaller CCs than females. This was often interpreted to support the concept that the male brain is more "lateralized" or "specialized," thus accounting for presumed male…
Descriptors: Deafness, Correlation, Handedness, Brain
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Zverev, Y. P.; Mipando, M. – Brain and Cognition, 2007
The present study was designed to assess cultural and environmental pressure against left-foot preference in urban and semi-urban Malawi. The findings demonstrated that, when compared to handedness, footedness appeared to be less biased behavioral laterality in culturally restrictive communities. The percentage of responders with negative views on…
Descriptors: Foreign Countries, Cultural Influences, Social Influences, Environmental Influences
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Fink, Bernhard; Brookes, Helen; Neave, Nick; Manning, John T.; Geary, David C. – Brain and Cognition, 2006
The ratio between the 2nd and 4th fingers (2D:4D)--a potential proxy for prenatal testosterone (T) exposure--shows a sex difference, with males usually having lower mean values; the latter potentially indicates higher prenatal T exposure. We studied relations between 2D:4D and competencies in the domains of counting, number knowledge, and…
Descriptors: Prenatal Influences, Mathematics Skills, Gender Differences, Computation