视觉是可度量的吗？评拉平与洛夫（1992年）的文章

Is vision metric? Comment on Lappin and Love (1992).

作者信息

Pizlo Z, Salach-Golyska M

机构信息

Purdue University, West Lafayette, Indiana.

出版信息

Percept Psychophys. 1994 Feb;55(2):230-4. doi: 10.3758/bf03211670.

DOI:10.3758/bf03211670

PMID:8036104

Abstract

In a recent paper, Lappin and Love (1992) showed that depth judgments, based on planar motion of a stimulus, are remarkably precise. This led them to the conclusion that perception of planar motion allows acquiring metric information about visual space. We show, however, that Lappin and Love's stimuli contained 2-D cues in the frontal plane that could subserve the subject's judgments. This means that high precision in this task does not necessarily imply metric structure of visual space.

摘要

在最近的一篇论文中，拉平与洛夫（1992年）指出，基于刺激物平面运动的深度判断非常精确。这使他们得出结论：对平面运动的感知能够获取有关视觉空间的度量信息。然而，我们发现，拉平与洛夫所使用的刺激物在额平面中包含二维线索，这些线索可能有助于受试者做出判断。这意味着在此任务中的高精度并不一定意味着视觉空间具有度量结构。