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What first drives visual attention during the recognition of object-directed actions? The role of kinematics and goal information.

Abstract : The recognition of others' object-directed actions is known to involve the decoding of both the visual kinematics of the action and the action goal. Yet whether action recognition is first guided by the processing of visual kinematics or by a prediction about the goal of the actor remains debated. In order to provide experimental evidence to this issue, the present study aimed at investigating whether visual attention would be preferentially captured by visual kinematics or by action goal information when processing others' actions. In a visual search task, participants were asked to find correct actions (e.g., drinking from glass) among distractor actions. Distractors actions contained grip and/or goal violations and could therefore share the correct goal and/or the correct grip with the target. The time course of fixation proportion on each distractor action has been taken as an indicator of visual attention allocation. Results show that visual attention is first captured by the distractor action with similar goal. Then the withdrawal of visual attention from the action distractor with similar goal suggests a later attentional capture by the action distractor with similar grip. Overall, results are in line with predictive approaches of action understanding, which assume that observers first make a prediction about the actor's goal before verifying this prediction using the visual kinematics of the action.
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https://hal.univ-lille.fr/hal-02952935
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Soumis le : mardi 6 octobre 2020 - 14:24:07
Dernière modification le : mercredi 14 octobre 2020 - 04:20:18

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Jeremy Decroix, Solene Kalenine. What first drives visual attention during the recognition of object-directed actions? The role of kinematics and goal information.. Attention, perception & psychophysics, 2019, Attention, perception & psychophysics, 81, pp.2400-2409. ⟨10.3758/s13414-019-01784-7⟩. ⟨hal-02952935v2⟩

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