扫视探索过程中向上扫视的较短注视持续时间：一项荟萃分析。

Greene Harold H, Brown James M, Strauss Gregory P

University of Detroit Mercy, USA.

University of Georgia, Athens, USA.

J Eye Mov Res. 2020 Mar 1;12(8). doi: 10.16910/jemr.12.8.5.

Utilizing 23 datasets, we report a meta-analysis of an asymmetry in presaccadic fixation durations for saccades directed above and below eye fixation during saccadic exploration. For inclusion in the meta-analysis, saccadic exploration of complex visual displays had to have been made without gaze-contingent manipulations. Effect sizes for the asymmetry were quantified as Hedge's g. Pooled effect sizes indicated significant asymmetries such that during saccadic exploration in a variety of tasks, presaccadic fixation durations for saccades directed into the upper visual field were reliably shorter than presaccadic fixation durations for saccades into the lower visual field. It is contended that the asymmetry is robust and important for efforts aimed at modelling when a saccade is initiated as a function of ensuing saccade direction.

我们利用23个数据集，报告了一项关于扫视探索过程中，向上和向下扫视时，扫视前注视持续时间不对称性的荟萃分析。为纳入荟萃分析，复杂视觉显示的扫视探索必须在无注视相关操作的情况下进行。不对称性的效应量以赫奇斯g值进行量化。合并效应量表明存在显著的不对称性，即在各种任务的扫视探索过程中，向上视野扫视的扫视前注视持续时间可靠地短于向下视野扫视的扫视前注视持续时间。有人认为，这种不对称性很强，对于根据后续扫视方向模拟扫视何时启动的研究很重要。