English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Linking retinotopic fMRI mapping and anatomical probability maps of human occipital areas V1 and V2

Wohlschläger, A. M., Specht, K., Lie, C.-H., Mohlberg, H., Wohlschläger, A., Bente, K., et al. (2005). Linking retinotopic fMRI mapping and anatomical probability maps of human occipital areas V1 and V2. NeuroImage, 26(1), 73-82. doi:10.1016/j.neuroimage.2005.01.021.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0010-C415-C Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-29CB-7
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Wohlschläger, Afra Maria, Author
Specht, Karsten, Author
Lie, Chuh-Hyoun, Author
Mohlberg, Hartmut, Author
Wohlschläger, Andreas1, Author              
Bente, Kay, Author
Pietrzyk, Uwe, Author
Stöcker, Tony, Author
Zilles, Karl, Author
Amunts, Katrin, Author
Affiliations:
1Department Psychology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634564              

Content

show
hide
Free keywords: Retinotopy; Cytoarchitecture; Striate cortex
 Abstract: Using functional MRI, we characterized field sign maps of the occipital cortex and created three-dimensional maps of these areas. By averaging the individual maps into group maps, probability maps of functionally defined V1 or V2 were determined and compared to anatomical probability maps of Brodmann areas BA17 and BA18 derived from cytoarchitectonic analysis (Amunts, K., Malikovic, A., Mohlberg, H., Schormann, T., Zilles, K., 2000. Brodmann's areas 17 and 18 brought into stereotaxic space—where and how variable? NeuroImage 11, 66–84). Comparison of areas BA17/V1 and BA18/V2 revealed good agreement of the anatomical and functional probability maps. Taking into account that our functional stimulation (due to constraints of the visual angle of stimulation achievable in the MR scanner) only identified parts of V1 and V2, for statistical evaluation of the spatial correlation of V1 and BA17, or V2 and BA18, respectively, the a priori measure κ was calculated testing the hypothesis that a region can only be part of functionally defined V1 or V2 if it is also in anatomically defined BA17 or BA18, respectively. κ = 1 means the hypothesis is fully true, κ = 0 means functionally and anatomically defined visual areas are independent. When applying this measure to the probability maps, κ was equal to 0.84 for both V1/BA17 and V2/BA18. The data thus show a good correspondence of functionally and anatomically derived segregations of early visual processing areas and serve as a basis for employing anatomical probability maps of V1 and V2 in group analyses to characterize functional activations of early visual processing areas.

Details

show
hide
Language(s):
 Dates: 2005
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: eDoc: 277933
Other: P5750
DOI: 10.1016/j.neuroimage.2005.01.021
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: NeuroImage
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Orlando, FL : Academic Press
Pages: - Volume / Issue: 26 (1) Sequence Number: - Start / End Page: 73 - 82 Identifier: ISSN: 1053-8119
CoNE: https://pure.mpg.de/cone/journals/resource/954922650166