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Direct linkGeuze, Reint H.; Schaafsma, Sara M.; Lust, Jessica M.; Bouma, Anke; Schiefenhovel, Wulf; Groothuis, Ton G. G. – Neuropsychologia, 2012
Considerable variation in the frequency of left-handedness between cultures has been reported, ranging from 0.5 to 24%. This variation in hand preference may have evolved under natural or cultural selection. It has been suggested that schooling affects handedness but as in most human societies only a selected and minor part of the population does…
Descriptors: Handedness, Foreign Countries, Prediction, Investigations
Lyle, Keith B.; Martin, Jessica M. – Brain and Cognition, 2010
Retrieval of memories is enhanced when bilateral saccades are made immediately before attempting retrieval. One hypothesis is that saccades enhance retrieval by increasing interaction of the brain hemispheres. To test this, subjects viewed arrays of lateralized letters and indicated whether target letters matched either of two probe letters.…
Descriptors: Brain Hemisphere Functions, Cognitive Processes, Memory, Task Analysis
Conson, Massimiliano; Pistoia, Francesca; Sara, Marco; Grossi, Dario; Trojano, Luigi – Brain and Cognition, 2010
Several lines of evidence demonstrate that the motor system is involved in motor simulation of actions, but some uncertainty exists about the consequences of lesions of descending motor pathways on mental imagery tasks. Moreover, recent findings suggest that the motor system could also have a role in recognition of body parts. To address these…
Descriptors: Imagery, Patients, Spatial Ability, Psychomotor Skills
Shobe, Elizabeth R.; Ross, Nicholas M.; Fleck, Jessica I. – Brain and Cognition, 2009
We investigated the effects of increased inter-hemispheric interaction (IHI) on five creativity dimensions (appropriateness, detail, categorical distinctiveness, fluency, and originality) of the Alternate Uses Task. Two methods were used to indicate degree of IHI. Trait IHI was indicated by individual differences in handedness, mixed-handers…
Descriptors: Control Groups, Creativity, Handedness, Eye Movements
Rommelse, Nanda N. J.; Altink, Marieke E.; Oosterlaan, Jaap; Buschgens, Cathelijne J. M.; Buitelaar, Jan; De Sonneville, Leo M. J.; Sergeant, Joseph A. – Journal of Child Psychology and Psychiatry, 2007
Background: Attention-deficit/hyperactivity disorder (ADHD) is strongly influenced by heritability. Identifying heritable vulnerability traits (endophenotypes) that mark a relatively high risk of developing the disorder can contribute to the identification of risk genes. A fruitful area for the search for such endophenotypes may be motor control…
Descriptors: Siblings, Hyperactivity, Attention Deficit Disorders, Pathology
Gaffrey, Michael S.; Kleinhans, Natalia M.; Haist, Frank; Akshoomoff, Natacha; Campbell, Ashley; Courchesne, Eric; Muller, Ralph-Axel – Neuropsychologia, 2007
Language delay and impairment are salient features of autism. More specifically, there is evidence of atypical semantic organization in autism, but the functional brain correlates are not well understood. The current study used functional MRI to examine activation associated with semantic category decision. Ten high-functioning men with autism…
Descriptors: Visual Stimuli, Control Groups, Semantics, Autism
