BIO Web of Conferences
Volume 1, 2011The International Conference SKILLS 2011
|Number of page(s)||3|
|Published online||15 December 2011|
From inefficient to pop-out visual search in one week
Experimental Psychology, University of Regensburg, Germany
(†) Department of Brain and Behavior Science, Dartmouth College, Hanover NH, USA
E-mail: firstname.lastname@example.org, Sebastian.email@example.com, Eric.A.Reavis@dartmouth.edu, Peter.U.Tse@dartmouth.edu
We investigated changes in brain activity while participants learned to perform a visual conjunction search task over eight successive days. In an eventrelated functional magnetic resonance imaging (fMRI) experiment, subjects searched for a red-green disk amongst many mirror-symmetric green-red distractors. Over sessions, accuracy increased and search-time decreased, indicative of perceptual learning and popout. This behavioral change was correlated with a decrease in neuronal activation in frontal and parietal cortex and an increase in activity in early visual areas during search. Training was specific to the targetdistractor stimuli and did not transfer to other configurations. Our findings suggest that difficult visual search can be learned within a few days and that the trained skill is associated with distinct changes in activation in occipital, parietal and frontal cortex.
© Owned by the authors, published by EDP Sciences, 2011
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.