垂直-水平错觉对手控追踪绩效的影响

目的 探讨垂直-水平错觉对手控追踪绩效的影响.方法 研究分实验1和实验2进行.实验1a为单因素(垂直-水平线段类型:垂直＞水平、垂直=水平、垂直＜水平)被试内设计,要求25名志愿者判断哪条线段更长.实验1b中,25名志愿者根据在行为测查中得到的错觉程度,分别归入高错觉组或低错觉组,同步采集ERP数据.实验2由36名志愿者首先完成线段长度判断任务(实验材料与流程同实验1a);垂直-水平线段错觉程度的计算方法同实验1b.其次要求完成30次追踪任务.结果 垂直-水平错觉程度的大小会影响手控追踪作业的绩效,错觉程度小的个体其追踪绩效会更好.结论 垂直-水平错觉有可能成为预测个体手控追踪能力的辅助指标之一,可为特殊人员选拔和训练提供新思路.

Effect of Horizontal-vertical Illusion on Manual Tracking Performance

Objective To explore the influence of the horizontal-vertical illusion on manual tracking performance.Methods The study contained two parts:study 1 and study 2.Twenty-five student volunteers participated in Expt.1 a.A three-level (i.e.,the following horizontal-vertical conditions:horizontal ＜ vertical,horizontal =vertical,and horizontal ＞ vertical) one-factor within-subjects design was adopted.The participants were asked to decide which line in the picture was longer,and ERP data were collected simultaneously.In Expt.1 b,the 25 subjects were classified into the high or low illusion groups according to the degree of the illusion as measured by the behavioral reactions.In Expt.2,the 36 participants first completed a line length judgment task(both the experiment materials and the procedures were the same as those in Expt.1 a).The horizontal-vertical illusion was measured with the same calculation method utilized in Expt.1 b.Then the participants were required to complete the tracking task 30 times.Results The size of the horizontal-vertical illusion influenced manual tracking performance,i.e.,performed better than individuals with bigger illusion sizes for performances.Conclusion The horizontal-vertical illusion is likely to become an auxiliary index to predict individuals' manual tracking abilities,which can provide new insight into the selection and training of special personnel.