Dissociating object-based and space-based affordances

Authors: Symes, Ed; Ellis, Rob; Tucker, Mike

Source: Visual Cognition, Volume 12, Number 7, October 2005 , pp. 1337-1361(25)

Publisher: Psychology Press, part of the Taylor & Francis Group

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Abstract:

In what we term the orientation effect, faster spatial responses are made to the corresponding task irrelevant orientation of an object. We ask how this effect relates to object affordances, how attention may be involved, and how the effect relates to the better understood Simon effect. Two separate stimulus–response compatibility effects (an orientation effect and a Simon effect) were observed when spatial responses were made to photographs of objects whose orientation and location had been simultaneously manipulated. When attentional demands were high these separate effects were found using hand responses and foot responses, suggesting an abstract rather than specific coding of object affordances. However, when attentional demands were low only the Simon effect was observed, suggesting that, in order to obtain the orientation effect, objects must be represented at the level of an object.

Document Type: Research article

DOI: http://dx.doi.org/10.1080/13506280444000445

Affiliations: 1: School of Psychology, University of Plymouth, UK

Publication date: 2005-10-01

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