کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6265256 1614069 2011 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Research ReportTopographical organization of human corpus callosum: An fMRI mapping study
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب (عمومی)
پیش نمایش صفحه اول مقاله
Research ReportTopographical organization of human corpus callosum: An fMRI mapping study
چکیده انگلیسی

The concept of a topographical map of the corpus callosum (CC) has emerged from human lesion studies and from anatomical tracing investigations in other mammals. Over the last few years, a rising number of researchers have been reporting functional magnetic resonance imaging (fMRI) activation in white matter, particularly the CC. In this study, the scope for describing CC topography with fMRI was explored by evoking activation through simple sensory stimulation and motor tasks. We reviewed our published and unpublished fMRI data on the cortical representation of tactile, gustatory, and visual sensitivity and of motor activation, obtained in 36 volunteers. Activation foci were consistently detected in discrete CC regions: anterior (taste stimuli), central (motor tasks), central and posterior (tactile stimuli), and splenium (visual stimuli). These findings demonstrate that the functional topography of the CC can be explored with fMRI.

Research Highlights► The corpus callosum (CC) of animals and man is topographically organized. ► Human CC white matter is functionally activated by interhemispheric transfer tasks. ► In our study human CC was also activated by simple sensory stimuli and motor tasks. ► Activation foci related to different sensory stimuli were topographically organized.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Brain Research - Volume 1370, 25 January 2011, Pages 99-111
نویسندگان
, , , , ,