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PubMed · 12639599

Context effects on texture border localization bias.

Ariella V Popple
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Abstract

Observers are able to locate precisely a border defined by changes in texture orientation. The prevailing theory is that such localization takes place using a hierarchical, filter-rectify-filter mechanism. An alternative theory is that contextual modulation causes the border elements to stand out. Here we show that perceived border location is inconsistent with contextual modulation from iso-oriented elements. The perceived location of a vertical border defined by vertical texture on one side, and horizontal texture on the other side, is biased towards the vertical texture. We found the same bias in a single row of texture. Therefore, the bias is not due to contextual influences from surrounding iso-oriented elements. Contextual influences between cross-oriented elements can explain the data.

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Field Dependence-IndependenceHumansModels, NeurologicalModels, PsychologicalOrientationPattern Recognition, VisualPhotic StimulationPsychophysicsVisual CortexJournal ArticleResearch Support, Non-U.S. Gov't

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Ariella V Popple. 2003. Context effects on texture border localization bias.. https://doi.org/10.1016/s0042-6989(03)00080-4

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