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Updated: Mar 22, 2026

Measuring Attention and Visual Processing Speed by Model-based Analysis of Temporal-order Judgments
Published on: January 23, 2017
Feature-Based Attention and Feature-Based Expectation
Christopher Summerfield1, Tobias Egner2
1Department of Experimental Psychology, University of Oxford, South Parks Road, Oxford, UK.
Abstract:
Foreknowledge of target stimulus features improves visual search performance as a result of 'feature-based attention' (FBA). Recent studies have reported that 'feature-based expectation' (FBE) also heightens decision sensitivity. Superficially, it appears that the latter work has simply rediscovered (and relabeled) the effects of FBA. However, this is not the case. Here we explain why.
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