Abstract
Do the target-distractor and distractor-distractor similarity relationships known to exist for simple stimuli extend to real-world objects, and are these effects expressed in search guidance or target verification? Parts of photorealistic distractors were replaced with target parts to create four levels of target-distractor similarity under heterogenous and homogenous conditions. We found that increasing target-distractor similarity and decreasing distractor-distractor similarity impaired search guidance and target verification, but that target-distractor similarity and heterogeneity/homogeneity interacted only in measures of guidance; distractor homogeneity lessens effects of target-distractor similarity by causing gaze to fixate the target sooner, not by speeding target detection following its fixation.
| Original language | English |
|---|---|
| Pages (from-to) | 20-30 |
| Number of pages | 11 |
| Journal | Vision Research |
| Volume | 54 |
| DOIs | |
| State | Published - Feb 1 2012 |
Keywords
- Distractor homogeneity
- Eye movements
- Object parts
- Target-distractor similarity
- Visual search
- Visual similarity
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