Authors
Reshanne R Reeder, Christian NL Olivers, Stefan Pollmann
Publication date
2017/3/16
Journal
Visual Cognition
Volume
25
Issue
1-3
Pages
278-290
Publisher
Routledge
Description
A “target template”, specifying target features, is thought to benefit visual search performance. Setting up a “negative template”, specifying distractor features, should improve distractor inhibition and also benefit target detection. In the current fMRI study, subjects were required to search for a target among distractors enclosed in coloured circles. Before search, one of three colour cues appeared: a positive cue indicating the target will appear in the same colour, a negative cue indicating only distractors will appear in the same colour, or a neutral cue indicating that the same colour will not appear in the search display. fMRI results revealed down-regulation of neural processing in large parts of visual cortex following negative compared to positive cues. We further found a general attention inhibition mechanism in SPL/precuneus for neutral cues compared to positive and negative cues. These results suggest a cortical …
Total citations
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Scholar articles
RR Reeder, CNL Olivers, S Pollmann - Visual Cognition, 2017