Castellotti Serena, Szinte Martin, Del Viva Maria Michela, Montagnini Anna
University of Florence, Department of Neurofarba, Florence, Italy.
Institut de Neurosciences de la Timone, CNRS and Aix-Marseille Université, Marseille, France.
iScience. 2023 Jul 4;26(8):107282. doi: 10.1016/j.isci.2023.107282. eCollection 2023 Aug 18.
The saccades' path is influenced by visual distractors, making their trajectory curve or them. Previous research suggested that the more salient the distractor, the more pronounced is the curvature. We investigate the saliency of spatial visual features, predicted by a constrained maximum entropy model to be optimal or non-optimal information carriers in fast vision, by using them as distractors in a saccadic task. Their effect was compared to that of luminance-based control distractors. features evoke a larger saccadic curvature compared to features, and the magnitude and direction of deviation change as a function of the delay between distractor and saccade onset. Effects were similar to those found with versus distractors. Therefore, model-predicted information optimal features interfere with target-oriented saccades, following a dynamic attraction-repulsion pattern. This suggests that the visuo-oculomotor system rapidly and automatically processes optimally informative features while programming visually guided eye movements.
扫视的路径会受到视觉干扰物的影响,使其轨迹弯曲或改变。先前的研究表明,干扰物越显著,曲率就越明显。我们通过在扫视任务中使用空间视觉特征作为干扰物,来研究由约束最大熵模型预测的、在快速视觉中为最优或非最优信息载体的空间视觉特征的显著性。将它们的效果与基于亮度的对照干扰物的效果进行比较。与[具体某类特征]相比,[具体某类特征]会引起更大的扫视曲率,并且偏差的大小和方向会随着干扰物与扫视开始之间的延迟而变化。其效果与使用[具体某类干扰物]与[具体某类干扰物]时发现的效果相似。因此,模型预测的信息最优特征会按照动态吸引-排斥模式干扰目标导向的扫视。这表明视觉眼动系统在规划视觉引导的眼动时会快速自动地处理最优信息特征。