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Using Rapid Serial Visual Presentation to Measure Set-Specific Capture, a Consequence of Distraction While Multitasking

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Additional-singleton interference in efficient visual search: a common salience route for detection and compound

Michael Zehetleitner¹, Michael J Proulx, Hermann J Müller

¹Department of General Psychology, Ludwig-Maximilians-Universität München, Leopoldstr. 13, 80802 Munich, Germany. mzehetleitner@psy.lmu.de

Attention, Perception & Psychophysics

|November 26, 2009

Summary

This summary is machine-generated.

Additional singletons interfere with visual search, contrary to dual-route models. This study shows cross-dimensional distractors slow target detection, challenging theories assuming non-spatial search routes.

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Area of Science:

Cognitive Psychology
Visual Perception

Background:

Additional singletons (ASs) in nontarget dimensions often impede visual search for feature singleton targets.
Dual-route models propose nonspatial search routes immune to such interference, supported by prior detection task studies.

Purpose of the Study:

To investigate the interference effects of cross-dimensional ASs on visual search performance.
To examine how AS frequency and saliency influence interference in target detection tasks.

Main Methods:

Participants performed visual search tasks involving target-present and target-absent trials.
The frequency and saliency of cross-dimensional ASs relative to the target were systematically manipulated.

Main Results:

Cross-dimensional ASs were found to significantly slow down detection responses.
This interference effect was modulated by both the frequency of AS occurrence and their saliency relative to the target.

Conclusions:

Findings challenge dual-route models of visual search, which predict immunity to cross-dimensional interference.
Results support single-route models, such as dimension weighting and guided search, that account for such interference effects.