Abstract
Previous research has demonstrated the existence of the so-called affordance effect (faster response when the visual affordance of a graspable object (e.g., a pan) corresponds to the response location). It has been argued that the effect is due to abstract spatial coding of the position of the handle relative to the object instead of the grasping affordance. Our experiment tested the hypothesis that the affordance effect is not caused solely by abstract spatial coding but also by specific motor activation in response to the visual affordance. We assumed that, in the case of abstract spatial codes, response location and not hand distinction would be the critical factor for producing an affordance effect. In our experiment, bi-manual crossed/uncrossed responses to left/right symbols superimposed on a picture of a pan were used. The task was to attend to the symbol and to press a corresponding left/right button. Affordances of the pan were manipulated. A three-way interaction between side of affordance (left/right), mode of response (crossed/uncrossed hands), and response–affordance correspondence (corresponding/non-corresponding) showed a correspondence effect in the right affordance condition with hands uncrossed and no correspondence effect with hands crossed. The correspondence effect was obtained in the left affordance condition across hand positions that differed only by their magnitude. Overall, the results suggest that both mechanisms (grasping affordance and spatial codes) differentially contribute to the processing of an object with a graspable handle, depending on the affordance side and response hand.
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This supplement was not sponsored by outside commercial interests. It was funded entirely by ECONA, Via dei Marsi, 78, 00185 Roma, Italy
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Janyan, A., Slavcheva, G.V. When left feels right: asymmetry in the affordance effect. Cogn Process 13 (Suppl 1), 199–202 (2012). https://doi.org/10.1007/s10339-012-0450-3
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DOI: https://doi.org/10.1007/s10339-012-0450-3