Bookcover of Neuronal Substrates of Blindsight in Hemispherectomized Subjects
Booktitle:

Neuronal Substrates of Blindsight in Hemispherectomized Subjects

Behavioral and Diffusion Tensor Imaging Tractography Studies

VDM Verlag Dr. MŸller Aktiengesellschaft & Co. KG (2008-07-07 )

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ISBN-13:

978-3-639-04576-5

ISBN-10:
3639045769
EAN:
9783639045765
Book language:
English
Blurb/Shorttext:
Damage to the occipital cortex has traditionally been thought to lead to permanent blindness in the contralateral visual field. The existence of residual visual functions in the blind field has, however, been observed and described in cortically blind humans and animals. This visual phenomenon, whereby patients are able to process visual information in their blind visual field without a conscious perception of the stimuli, was first coined blindsight. The neuronal correlate of this phenomenon, however, remains elusive. Advances in neuroimaging techniques such as Diffusion Tensor Imaging, careful application of paradigms, and strict control of methodological artifacts have enabled me to confirm the existence of blindsight in hemispherectomized subjects and the involvement of the superior colliculi in this phenomenon. My studies demonstrate that superior colliculi connections to the remaining cortical areas play a pivotal role in unconscious vision. In addition, I was able to show that Diffusion Tensor Imaging is a promising, innovative technique to investigate cortical and subcortical connectivity as well as cortical plasticity.
Publishing house:
VDM Verlag Dr. MŸller Aktiengesellschaft & Co. KG
By (author) :
Dr. Sandra E.
Number of pages:
148
Published on:
2008-07-07
Stock:
Available
Category:
Psychology
Price:
59.00 €
Keywords:
Blindsight, Superior Colliculi, Hemispherectomy, Diffusion Tensor Imaging, S-cone, Residual Vision, Neuronal Substrate, Blue/Yellow color vision, Spatial Summation Effect

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