Neuroimaging techniques offer new perspectives on callosal transfer and interhemispheric communication

@article{Doron2008NeuroimagingTO,
  title={Neuroimaging techniques offer new perspectives on callosal transfer and interhemispheric communication},
  author={Karl W. Doron and Michael S. Gazzaniga},
  journal={Cortex},
  year={2008},
  volume={44},
  pages={1023-1029}
}
The brain relies on interhemispheric communication for coherent integration of cognition and behavior. Surgical disconnection of the two cerebral hemispheres has granted numerous insights into the functional organization of the corpus callosum (CC) and its relationship to hemispheric specialization. Today, technologies exist that allow us to examine the healthy, intact brain to explore the ways in which callosal organization relates to normal cognitive functioning and cerebral lateralization… 
Contribution of Callosal Connections to the Interhemispheric Integration of Visuomotor and Cognitive Processes
TLDR
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TLDR
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TLDR
Patterns of directional symmetry/asymmetry of transcallosal transfer time may be related to the degree of brain lateralisation, and neural network modelling and electrophysiological studies on interhemispheric transmission provide data supporting this supposition.
The Role of the Corpus Callosum in Transcranial Magnetic Stimulation Induced Interhemispheric Signal Propagation
TLDR
It is suggested that TMS-induced interhemispheric signal propagation is transcallosally mediated and neuroanatomically specific and support a role for the corpus callosum in preservation of functional asymmetry between homologous cortical regions.
Dynamic network structure of interhemispheric coordination
TLDR
The use of recently developed dynamic, network-based analysis techniques are illustrated to examine interhemispheric coordination in healthy human participants performing a split visual field experiment in which they process lexical stimuli to demonstrate the underlying dynamic nature of brain communication.
Reorganization of Visual Callosal Connections Following Alterations of Retinal Input and Brain Damage
TLDR
Overall, the data indicate that experience can potently impact on transcallosal connectivity, and that the callosum itself is crucial for plasticity and recovery in various disorders of the visual pathway.
Changes in Callosal Motor Fiber Integrity after Subcortical Stroke of the Pyramidal Tract
TLDR
The data suggest a progressive degenerative transsynaptic effect of PT stroke on CMF, which could be a morphological correlate of transcallosal disinhibition.
Callosal tracts and patterns of hemispheric dominance: A combined fMRI and DTI study
TLDR
It is shown that atypical hemispheric dominance for language was associated with high anisotropic diffusion through the corpus callosum as a whole, and this effect was most evident in participants with crowding of both functions to the right.
Brain asymmetry in the white matter making and globularity
TLDR
An evo-devo hypothesis is presented according to which the myelination of the Corpus Callosum, Brain Asymmetry, and Globularity are conjectured to make up the angles of a co-evolutionary triangle that gave rise to the authors' language-ready brain.
Intact hemisphere and corpus callosum compensate for visuomotor functions after early visual cortex damage
TLDR
Investigation of the functional and structural properties that enable the developing brain to partly overcome the effects of early V1 lesion in one blindsight patient provides a framework for future investigations of functional recovery after brain damage and on mechanisms that mediate nonconscious abilities.
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