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Article Dans Une Revue PLoS ONE Année : 2023

Too much to handle? Interference from distractors with similar affordances on target selection for handled objects

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The existence of handle affordances has been classically demonstrated using the Stimulus-Response Compatibility paradigm, with shorter response times when the orientation of the object handle and the response hand are compatible in comparison to incompatible. Yet the activation of handle affordances from visual objects has been investigated in very simple situations involving single stimulus and motor response. As natural perceptual scenes are usually composed of multiple objects that could activate multiple affordances, the consequence of multiple affordance activation on the perception and processing of a given object of the scene requires more investigation. The aim of this study was to determine the impact of distractor affordances on the processing of a target object in situations involving several familiar graspable objects. In two online experiments, 229 participants had to select a target object (the kitchen utensil or the tool) in a visual scene displaying a pair of objects. They performed left key presses when the target was on the left and right key presses when the target was on the right. Target handle orientation and response side could be compatible or incompatible. Critically, target and distractor objects had similar or dissimilar handle affordances, with handles oriented for left- or right-hand grasps. Results from the two experiments showed slower response times when target and distractor objects had similar handle affordances in comparison to dissimilar affordances, when participants performed right hand responses and when target orientation and response were compatible. Thus, affordance similarity between objects may interfere rather than facilitate object processing and slow down target selection. These findings are in line with models of affordance and object selection assuming automatic inhibition of distractors’ affordances for appropriate object interaction.
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hal-04299240 , version 1 (22-11-2023)

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Lilas Haddad, Yannick Wamain, Solene Kalenine. Too much to handle? Interference from distractors with similar affordances on target selection for handled objects. PLoS ONE, 2023, PLoS ONE, 18 (8), pp.e0290226. ⟨10.1371/journal.pone.0290226⟩. ⟨hal-04299240⟩
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