Department of Psychology, Hangzhou Normal University, Hangzhou 311121, Zhejiang, China; Center for Cognition and Brain Disorders, The Affiliated Hospital of Hangzhou Normal University, Hangzhou 310015, Zhejiang, China.
Center for Cognition and Brain Disorders, The Affiliated Hospital of Hangzhou Normal University, Hangzhou 310015, Zhejiang, China; School of Psychology, Jiangxi Normal University, Nanchang 330022, Jiangxi, China.
Cognition. 2023 May;234:105384. doi: 10.1016/j.cognition.2023.105384. Epub 2023 Feb 1.
Statistical encoding compresses redundant information from multiple items into a single summary metric (e.g., mean). Such statistical representation has been suggested to be automatic, but at which stage it is extracted is unknown. Here, we examined the involvement of the subcortex in the processing of summary statistics. We presented an array of circles dichoptically or monocularly while matching the number of perceived circles after binocular fusion. Experiments 1 and 2 showed that interocularly suppressed, invisible circles were automatically involved in the summary statistical representation, but only when they were presented to the same eye as the visible circles. This same-eye effect was further observed for consciously processed circles in Experiment 3, in which the estimated mean size of the circles was biased toward the information transmitted by monocular channels. Together, we provide converging evidence that the processing of summary statistics, an assumed high-level cognitive process, is mediated by subcortical structures.
统计编码将多个项目的冗余信息压缩到单个汇总指标（例如平均值）中。这种统计表示被认为是自动的，但在哪个阶段提取它是未知的。在这里，我们研究了皮质下结构在汇总统计信息处理中的参与。我们呈现了一系列的圆圈，要么是双眼要么是单眼，同时匹配双眼融合后感知到的圆圈数量。实验 1 和 2 表明，即使是被双眼抑制的看不见的圆圈也会自动参与到汇总统计表示中，但前提是它们与可见的圆圈呈现于同一只眼。在实验 3 中，这种同眼效应进一步出现在对有意识处理的圆圈的观察中，其中圆圈的估计平均大小偏向于由单眼通道传递的信息。综上所述，我们提供了一致的证据表明，汇总统计信息的处理，这是一个假设的高级认知过程，是由皮质下结构介导的。
