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The Connectivity of the Human Pulvinar : A Diffusion Tensor Imaging Tractography Study
Joint Authors
Ptito, Alain
Leh, Sandra E.
Chakravarty, M. Mallar
Source
International Journal of Biomedical Imaging
Issue
Vol. 2008, Issue 2008 (31 Dec. 2008), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2007-12-31
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
Previous studies in nonhuman primates and cats have shown that the pulvinar receives input from various cortical and subcortical areas involved in vision.
Although the contribution of the pulvinar to human vision remains to be established, anatomical tracer and electrophysiological animal studies on cortico-pulvinar circuits suggest an important role of this structure in visual spatial attention, visual integration, and higher-order visual processing.
Because methodological constraints limit investigations of the human pulvinar's function, its role could, up to now, only be inferred from animal studies.
In the present study, we used an innovative imaging technique, Diffusion Tensor Imaging (DTI) tractography, to determine cortical and subcortical connections of the human pulvinar.
We were able to reconstruct pulvinar fiber tracts and compare variability across subjects in vivo.
Here we demonstrate that the human pulvinar is interconnected with subcortical structures (superior colliculus, thalamus, and caudate nucleus) as well as with cortical regions (primary visual areas (area 17), secondary visual areas (area 18, 19), visual inferotemporal areas (area 20), posterior parietal association areas (area 7), frontal eye fields and prefrontal areas).
These results are consistent with the connectivity reported in animal anatomical studies.
American Psychological Association (APA)
Leh, Sandra E.& Chakravarty, M. Mallar& Ptito, Alain. 2007. The Connectivity of the Human Pulvinar : A Diffusion Tensor Imaging Tractography Study. International Journal of Biomedical Imaging،Vol. 2008, no. 2008, pp.1-5.
https://search.emarefa.net/detail/BIM-498212
Modern Language Association (MLA)
Leh, Sandra E.…[et al.]. The Connectivity of the Human Pulvinar : A Diffusion Tensor Imaging Tractography Study. International Journal of Biomedical Imaging No. 2008 (2008), pp.1-5.
https://search.emarefa.net/detail/BIM-498212
American Medical Association (AMA)
Leh, Sandra E.& Chakravarty, M. Mallar& Ptito, Alain. The Connectivity of the Human Pulvinar : A Diffusion Tensor Imaging Tractography Study. International Journal of Biomedical Imaging. 2007. Vol. 2008, no. 2008, pp.1-5.
https://search.emarefa.net/detail/BIM-498212
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-498212