Abstract:
:The concept of a topographical map of the corpus callosum (CC) has emerged from human lesion studies and from electrophysiological and 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 We reviewed our published and unpublished fMRI and diffusion tensor imaging data on the cortical representation of tactile, gustatory, auditory, and visual sensitivity and of motor activation, obtained in 36 normal volunteers and in 6 patients with partial callosotomy. Activation foci were consistently detected in discrete CC regions: anterior (taste stimuli), central (motor tasks), central and posterior (tactile stimuli), and splenium (auditory and visual stimuli). Reconstruction of callosal fibers connecting activated primary gustatory, motor, somatosensory, auditory, and visual cortices by diffusion tensor tracking showed bundles crossing, respectively, through the genu, anterior and posterior body, and splenium, at sites harboring fMRI foci. These data confirm that the CC commissure has a topographical organization and demonstrate that its functional topography can be explored with fMRI.
journal_name
Neural Plastjournal_title
Neural plasticityauthors
Fabri M,Polonara Gdoi
10.1155/2013/251308subject
Has Abstractpub_date
2013-01-01 00:00:00pages
251308eissn
2090-5904issn
1687-5443journal_volume
2013pub_type
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journal_title:Neural plasticity
pub_type: 杂志文章,评审
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journal_title:Neural plasticity
pub_type: 杂志文章,随机对照试验
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journal_title:Neural plasticity
pub_type: 杂志文章,评审
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journal_title:Neural plasticity
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journal_title:Neural plasticity
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journal_title:Neural plasticity
pub_type: 杂志文章
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更新日期:2018-12-02 00:00:00
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journal_title:Neural plasticity
pub_type: 杂志文章
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journal_title:Neural plasticity
pub_type: 杂志文章,评审
doi:10.1155/2016/9847696
更新日期:2016-01-01 00:00:00
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journal_title:Neural plasticity
pub_type: 杂志文章
doi:10.1155/2016/7287180
更新日期:2016-01-01 00:00:00
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journal_title:Neural plasticity
pub_type: 杂志文章,评审
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pub_type: 杂志文章,评审
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更新日期:2020-01-27 00:00:00
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journal_title:Neural plasticity
pub_type: 杂志文章
doi:10.1155/2009/294192
更新日期:2009-01-01 00:00:00
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journal_title:Neural plasticity
pub_type: 杂志文章
doi:10.1155/2020/8895369
更新日期:2020-10-14 00:00:00
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journal_title:Neural plasticity
pub_type: 杂志文章,评审
doi:10.1155/2021/8868447
更新日期:2021-01-12 00:00:00
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journal_title:Neural plasticity
pub_type: 杂志文章
doi:10.1155/2008/872456
更新日期:2008-01-01 00:00:00
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journal_title:Neural plasticity
pub_type: 杂志文章
doi:10.1155/2015/585783
更新日期:2015-01-01 00:00:00
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journal_title:Neural plasticity
pub_type: 杂志文章
doi:10.1155/2009/612698
更新日期:2009-01-01 00:00:00
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journal_title:Neural plasticity
pub_type: 杂志文章,评审
doi:10.1155/2017/5125624
更新日期:2017-01-01 00:00:00
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journal_title:Neural plasticity
pub_type: 杂志文章,评审
doi:10.1155/2013/853654
更新日期:2013-01-01 00:00:00
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journal_title:Neural plasticity
pub_type: 杂志文章
doi:10.1155/2017/7543686
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journal_title:Neural plasticity
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journal_title:Neural plasticity
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pub_type: 杂志文章,评审
doi:10.1155/2014/321209
更新日期:2014-01-01 00:00:00
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pub_type: 杂志文章,评审
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journal_title:Neural plasticity
pub_type: 杂志文章
doi:10.1155/2016/8583420
更新日期:2016-01-01 00:00:00
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journal_title:Neural plasticity
pub_type: 杂志文章
doi:10.1155/2012/931780
更新日期:2012-01-01 00:00:00
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journal_title:Neural plasticity
pub_type: 杂志文章,评审
doi:10.1155/NP.2005.119
更新日期:2005-01-01 00:00:00
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journal_title:Neural plasticity
pub_type: 杂志文章
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更新日期:2019-09-03 00:00:00
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journal_title:Neural plasticity
pub_type: 杂志文章
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journal_title:Neural plasticity
pub_type: 杂志文章
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更新日期:2012-01-01 00:00:00