Comparing measures of monocular distance perception: Verbal and reaching errors are not correlated
Comparing measures of monocular distance perception: Verbal and reaching errors are not correlated
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DOI：
10.1037/0096-1523.24.4.1037
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发表时间：
1998-08-01
影响因子：
2.1
通讯作者：
Bingham, GP
中科院分区：
文献类型：
--
作者：
Pagano, CC;Bingham, GP
利用头盔摄像机和显示器研究了头部向目标运动时产生的光流对自我中心距离的单目知觉。用口头报告和触觉两种反应测量来评估感知目标距离的能力。系统误差和随机误差作为响应措施的函数而不同。对触手可及的目标和超出触手可及的目标的口头估计是在执行触手可及的目标之前和之后获得的。口头估计的系统误差发生了变化，但总体上并没有减少。随机误差减小。同时对触手可及的目标进行口头估计和覆盖。语言错误和达到错误是不相关的。言语判断似乎是根据到达时经历的距离范围进行的，而不是根据感知信息本身进行校准。讨论的重点是采取行动应对措施的优势。
Monocular perception of egocentric distance via optic flow generated by head movement toward a target was investigated with a helmet-mounted video camera and display. Ability to perceive target distance was assessed with 2 response measures: verbal reports and reaches. Systematic and random errors differed as a function of the response measure. Verbal estimates of targets within and beyond reach were obtained before and after the performance of reaches to targets within reach. Systematic errors of verbal estimates changed but did not decrease overall. Random error decreased. Verbal estimates and reaches were performed concurrently to targets within reach. Verbal and reaching errors were uncorrelated. Verbal judgments appear to have been anchored using the range of distances experienced while reaching rather than being calibrated to the perceptual information itself. Discussion focuses on the advantages of action response measures.