Scientific article
English

Dissociation between Goal-directed and Discrete Response Localization in a Patient with Bilateral Cortical Blindness

Published inJournal of cognitive neuroscience, vol. 25, no. 10, p. 1769-1775
Publication date2013
Abstract

We investigated localization performance of simple targets in patient TN, who suffered bilateral damage of his primary visual cortex and shows complete cortical blindness. Using a two-alternative forced-choice paradigm, TN was asked to guess the position of left-right targets with goal-directed and discrete manual responses. The results indicate a clear dissociation between goal-directed and discrete responses. TN pointed toward the correct target location in approximately 75% of the trials but was at chance level with discrete responses. This indicates that the residual ability to localize an unseen stimulus depends critically on the possibility to translate a visual signal into a goal-directed motor output at least in certain forms of blindsight.

Keywords
  • Blindsight
  • Movement
Citation (ISO format)
BUETTI, Simona et al. Dissociation between Goal-directed and Discrete Response Localization in a Patient with Bilateral Cortical Blindness. In: Journal of cognitive neuroscience, 2013, vol. 25, n° 10, p. 1769–1775. doi: 10.1162/jocn_a_00404
Main files (1)
Article (Published version)
accessLevelRestricted
Identifiers
Journal ISSN0898-929X
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Technical informations

Creation29/10/2013 11:23:00
First validation29/10/2013 11:23:00
Update15/11/2024 15:47:20
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