Department of Psychology.
J Exp Psychol Hum Percept Perform. 2022 Jul;48(7):771-781. doi: 10.1037/xhp0001023. Epub 2022 Jun 2.
Understanding the dynamics of selective attention has been a central research goal in the cognitive sciences. One account proposes that attention is unitary and increases in selectivity over time. An alternative account proposes that attention switches from a low to a high state of selectivity at a point in time when a distinct selective attention mechanism is engaged. Despite posing fundamentally different theoretical perspectives on selective attention, both accounts have successfully explained outcome-based data, such as reaction time. Here, we used mouse-tracking, which provides high temporal resolution to record movement trajectories in a flanker task. We examined spatial and temporal movement dynamics for characteristics of continuous and discrete shifts in attentional selectivity. Our results showed that attentional selectivity increases gradually over time, rather than abruptly, demonstrating a continuous process of selective attention. (PsycInfo Database Record (c) 2022 APA, all rights reserved).
理解选择性注意的动态一直是认知科学的核心研究目标之一。一种观点认为，注意力是单一的，随着时间的推移选择性会增强。另一种观点则认为，当一个独特的选择性注意机制被激活时，注意力会从低选择性状态切换到高选择性状态。尽管这两种观点对选择性注意提出了截然不同的理论观点，但它们都成功地解释了基于结果的数据，例如反应时间。在这里，我们使用了鼠标跟踪技术，该技术提供了高时间分辨率，可在侧翼任务中记录运动轨迹。我们研究了空间和时间运动动态，以研究注意力选择性连续和离散变化的特征。我们的结果表明，注意力选择性随着时间的推移逐渐增加，而不是突然增加，这表明选择性注意是一个连续的过程。（PsycInfo 数据库记录（c）2022 APA，保留所有权利）。
