NDLI: Transcallosal connection patterns of opposite dorsal premotor regions support a lateralized specialization for action and perception.

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Transcallosal connection patterns of opposite dorsal premotor regions support a lateralized specialization for action and perception.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Van Der Hoorn, Anouk Potgieser, Adriaan R. E. de Jong, Bauke M.
Description	Country affiliation: Netherlands Author Affiliation: van der Hoorn A ( Department of Neurology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9700, RB Groningen, The Netherlands)
Abstract	Lateralization of higher brain functions requires that a dominant hemisphere collects relevant information from both sides. The right dorsal premotor cortex (PMd), particularly implicated in visuomotor transformations, was hypothesized to be optimally located to converge visuospatial information from both hemispheres for goal-directed movement. This was assessed by probabilistic tractography and a novel analysis enabling group comparisons of whole-brain connectivity distributions of the left and right PMd in standard space (16 human subjects). The resulting dominance of contralateral PMd connections was characterized by right PMd connections with left visual and parietal areas, indeed supporting a dominant role in visuomotor transformations, while the left PMd showed dominant contralateral connections with the frontal lobe. Ipsilateral right PMd connections were also stronger with posterior parietal regions, relative to the left PMd connections, while ipsilateral connections of the left PMd were stronger with, particularly, the anterior cingulate, the ventral premotor and anterior parietal cortex. The pattern of dominant right PMd connections thus points to a specific role in guiding perceptual information into the motor system, while the left PMd connections are consistent with action dominance based on a lead in motor intention and fine precision skills.
File Format	HTM / HTML
ISSN	0953816X
Issue Number	6
Volume Number	40
e-ISSN	14609568
Journal	European Journal of Neuroscience
Language	English
Publisher	Wiley-Blackwell
Publisher Date	2014-09-01
Publisher Place	France
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Neuroscience Functional Laterality Motor Cortex Anatomy & Histology Adult Diffusion Magnetic Resonance Imaging Female Humans Image Processing, Computer-assisted Male Motion Perception Motor Activity Neural Pathways Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Neuroscience

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