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Using Rapid Serial Visual Presentation to Measure Set-Specific Capture, a Consequence of Distraction While Multitasking
Published on: August 29, 2018
Distractors slow information accumulation in simple feature search
Christopher Kent1, Christina J Howard, Iain D Gilchrist
1School of Experimental Psychology, University of Bristol, UK. c.kent@bristol.ac.uk
Journal of Vision
|January 19, 2012
Summary
Reanalyzing visual search data reveals distractors slow information processing. New experiments confirm a processing speed advantage for displays without distractors, challenging previous conclusions on visual attention.
Area of Science:
- Cognitive Psychology
- Visual Perception
- Neuroscience
Background:
- Previous research suggested distractors do not impede information accumulation in single feature visual search.
- Carrasco and McElree (2001) concluded that distractors do not affect the speed of target information accumulation.
Purpose of the Study:
- To reanalyze data from Carrasco and McElree (2001) regarding visual search.
- To investigate the impact of distractors on processing speed in visual search.
- To examine the role of display duration on processing speed with and without distractors.
Main Methods:
- Reanalysis of existing speed-accuracy trade-off data from Carrasco and McElree (2001).
- Conducting a new speed-accuracy trade-off experiment on visual search.
- Systematically varying display duration in visual search tasks.
Main Results:
- A processing speed advantage was found for single feature search displays lacking distractors compared to those with distractors.
- Increasing display duration enhanced processing speed for displays with distractors, but not for displays without distractors.
- The reanalysis indicated that the original conclusion by Carrasco and McElree (2001) was incomplete.
Conclusions:
- Distractors significantly impact processing speed in single feature visual search, contrary to previous interpretations.
- Attentional allocation models must account for the differential effects of display duration on search performance with and without distractors.
- Findings support a more nuanced understanding of visual attention architecture, potentially favoring graded accounts over fixed architecture models.
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