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Communication Dans Un Congrès Année : 2013

Visual attention in a complex task: discrimination of decisional processes with eyes movement patterns

Résumé

Visual attention is interrelated with the research of visuals information, especially in complex tasks such as driving. In this task, especially when approaching a crossroads, top-down processes (goal-directed) are dominant. To reach his goal, the driver needs to take decisions, such as Go/NoGo at the crossroads. Therefore, driving is a relevant task to study decisional processes using eyes movement. In our study, we describe the decision-making with three cognitive processes, and postulate three associated oculomotor patterns. These processes are: information-taking (collect information to end in a decision); control (soundness of the decision); anticipation (information-taking attached to the next decision and control, depending on the risk level and the associated attentional resource). Road signs and traffic densities were manipulated in order to modulate the decision. We tested two hypotheses, one before and one after the Go/NoGo decision in the give-way condition: 1/ before the decision, oculomotor patterns are distinct between give-way (information-taking), stop (anticipation) and priority (control); 2/ after the decision, they are similar between priority and give-way with Go decision (control), and between stop and give-way with NoGo decision (anticipation). Thirty-four participants, equipped with an eye-tracker, drove in a simulator. Saccade amplitudes and fixation durations were in good agreement with our hypotheses. Finally, we focus on the dynamics of the processes.

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Dates et versions

hal-00869953 , version 1 (27-11-2020)

Identifiants

  • HAL Id : hal-00869953 , version 1

Citer

Sophie Lemonnier, Roland Bremond, Thierry Baccino. Visual attention in a complex task: discrimination of decisional processes with eyes movement patterns. 17th European Conference on Eye Movements, Aug 2013, Lund, Sweden. 3 p. ⟨hal-00869953⟩
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