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Suavansri, Ketchai; Falchook, Adam D.; Williamson, John B.; Heilman, Kenneth M. – Brain and Cognition, 2012
Background: Pseudoneglect is a normal left sided spatial bias observed with attempted bisections of horizontal lines and a normal upward bias observed with attempted bisections of vertical lines. Horizontal pseudoneglect has been attributed to right hemispheric dominance for the allocation of attention. The goal of this study was to test the…
Descriptors: Brain Hemisphere Functions, Handedness, Spatial Ability, Lateral Dominance
Bayer, Ulrike; Hausmann, Markus – Brain and Cognition, 2012
Fluctuating sex hormone levels during the menstrual cycle have been shown to affect functional cerebral asymmetries in cognitive domains. These effects seem to result from the neuromodulatory properties of sex hormones and their metabolites on interhemispheric processing. The present study was carried out to investigate whether functional cerebral…
Descriptors: Females, Gender Differences, Physiology, Brain Hemisphere Functions
Shenal, Brian V.; Hinze, Stephan; Heilman, Kenneth M. – Brain and Cognition, 2012
Adaptive behaviors require preparation and when necessary inhibition or alteration of actions. The right hemisphere has been posited to be dominant for preparatory motor activation. This experiment was designed to learn if there are hemispheric asymmetries in the control of altered plans of actions. Cues, both valid and invalid, which indicate the…
Descriptors: Brain Hemisphere Functions, Cues, Miscue Analysis, Inhibition
Christman, Stephen D.; Butler, Michael – Brain and Cognition, 2011
The existence of handedness differences in the retrieval of episodic memories is well-documented, but virtually all have been obtained under conditions of intentional learning. Two experiments are reported that extend the presence of such handedness differences to memory retrieval under conditions of incidental learning. Experiment 1 used Craik…
Descriptors: Handedness, Intentional Learning, Incidental Learning, Recognition (Psychology)
Verleger, Rolf; Binkofski, Ferdinand; Friedrich, Monique; Sedlmeier, Peter; Kompf, Detlef – Brain and Cognition, 2011
In patients with the callosal type of anarchic-hand syndrome, the left hand often does not act as intended and counteracts the right hand. Reports are scarce about the underlying neurophysiological mechanisms. We report the case G.H. who developed the syndrome after infarction of the left arteria pericallosa. It has been suggested that the…
Descriptors: Brain Hemisphere Functions, Stimuli, Neurological Impairments, Patients
Buckingham, Gavin; Binsted, Gordon; Carey, David P. – Brain and Cognition, 2010
When both hands perform concurrent goal-directed reaches, they become yoked to one another. To investigate the direction of this coupling (i.e., which hand is yoked to which), the temporal dynamics of bimanual reaches were compared with equivalent-amplitude unimanual reaches. These reaches were to target pairs located on either the left or right…
Descriptors: Reaction Time, Brain Hemisphere Functions, Handedness, Comparative Analysis
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
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
Propper, Ruthe E.; O'Donnell, Lauren J.; Whalen, Stephen; Tie, Yanmei; Norton, Isaiah H.; Suarez, Ralph O.; Zollei, Lilla; Radmanesh, Alireza; Golby, Alexandra J. – Brain and Cognition, 2010
The present study examined the relationship between hand preference degree and direction, functional language lateralization in Broca's and Wernicke's areas, and structural measures of the arcuate fasciculus. Results revealed an effect of degree of hand preference on arcuate fasciculus structure, such that consistently-handed individuals,…
Descriptors: Handedness, Neurology, Motor Development, Diagnostic Tests
Parker, Andrew; Dagnall, Neil – Brain and Cognition, 2010
The effects of handedness and saccadic bilateral eye movements on autobiographical recollection were investigated. Recall of autobiographical memories was cued by the use of neutral and emotional words. Autobiographical recollection was assessed by the autobiographical memory questionnaire. Experiment 1 found that mixed-handed (vs. right handed)…
Descriptors: Handedness, Eye Movements, Memory, Recall (Psychology)
Chiarello, Christine; Welcome, Suzanne E.; Halderman, Laura K.; Leonard, Christiana M. – Brain and Cognition, 2009
Is it advantageous to be strongly lateralized? The current study investigated this question by examining the relationship between visual field asymmetries for lexical tasks and reading performance in a sample of 200 young adults. Larger visual field asymmetries were associated with better reading performance, but this relationship was obtained…
Descriptors: Word Recognition, Reading Achievement, Young Adults, Handedness
Godard, Ornella; Fiori, Nicole – Brain and Cognition, 2010
The aim of this study was to determine the influence of sex on hemispheric asymmetry and cooperation in a face recognition task. We used a masked priming paradigm in which the prime stimulus was centrally presented; it could be a bisymmetric face or a hemi-face in which facial information was presented in the left or the right visual field and…
Descriptors: Brain Hemisphere Functions, Task Analysis, Recognition (Psychology), Gender Differences
Hill, Elisabeth L.; Khanem, Fateha – Brain and Cognition, 2009
Lateralisation of hand preference and manual dexterity are known to develop over childhood, while in adulthood strength of hand preference has been shown to interact with extrinsic task demands. Some evidence exists to suggest that strength of hand preference and motor skill may be related. In the current study a handedness inventory, midline…
Descriptors: Handedness, Psychomotor Skills, Brain Hemisphere Functions, Task Analysis
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
Carlsson, G.; Wiegand, G.; Stephani, U. – Brain and Cognition, 2011
Dichotic listening test (DL) is an important tool to disclose speech dominance in healthy subjects and in clinical cases. The aim of this study was to probe if focal epilepsy in children reveals a corresponding suppression of the ear reports contralateral to seizure onset site. Thus, 15 children and adolescents with clinically and…
Descriptors: Epilepsy, Seizures, Listening Comprehension Tests, Auditory Perception
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