Psychology Department, George Washington University, Washington, DC, USA.
Perception. 2020 May;49(5):539-557. doi: 10.1177/0301006620915158. Epub 2020 Apr 8.
(a) Participants indicated, for pairs of circles whose locations varied on the horizontal and vertical axes of a frontal plane, whether the horizontal distance between the circles exceeded a target horizontal distance. The error rate depended on the vertical as well as the horizontal distance between the circles. (b) Participants indicated, for pairs of circles that were varying horizontal (or vertical) distances and a constant vertical (or horizontal) distance apart in a frontal plane, whether the horizontal (or vertical) distance between them matched a target horizontal (or vertical) distance. Incorrect "match" responses were more likely if the horizontal (or vertical) distance between the circles was less than as opposed to greater than the target distance. The results suggest that distance judgments for pairs of stimuli varying on the horizontal and vertical axes are based on the overall distance between the stimuli, with the relevant axis given more weight than the irrelevant axis in assessment of the distance. The results do not support the view that that such distance judgments are based on the relevant distance between the stimuli, with the relevant and irrelevant axes being erroneously interchanged on some iterations of the assessment process.
（a）参与者指出，对于在额状面的水平和垂直轴上位置变化的两个圆圈，它们之间的水平距离是否超过了目标水平距离。错误率取决于圆圈之间的垂直和水平距离。（b）参与者指出，对于在额状面中水平（或垂直）距离变化且垂直（或水平）距离不变的两个圆圈，它们之间的水平（或垂直）距离是否与目标水平（或垂直）距离匹配。如果圆圈之间的水平（或垂直）距离小于而不是大于目标距离，则更有可能做出错误的“匹配”反应。结果表明，对于在水平和垂直轴上变化的两个刺激的距离判断是基于刺激之间的整体距离，在评估距离时，相关轴比不相关轴更重要。结果不支持这样的观点，即这种距离判断是基于刺激之间的相关距离，在评估过程的某些迭代中，相关和不相关轴被错误地互换。
