Visual space under free viewing conditions

Perception & Psychophysics
Michelle J A DoumenJan J Koenderink

Abstract

Most research on visual space has been done under restricted viewing conditions and in reduced environments. In our experiments, observers performed an exocentric pointing task, a collinearity task, and a parallelity task in a entirely visible room. We varied the relative distances between the objects and the observer and the separation angle between the two objects. We were able to compare our data directly with data from experiments in an environment with less monocular depth information present. We expected that in a richer environment and under less restrictive viewing conditions, the settings would deviate less from the veridical settings. However, large systematic deviations from veridical settings were found for all three tasks. The structure of these deviations was task dependent, and the structure and the deviations themselves were comparable to those obtained under more restricted circumstances. Thus, the additional information was not used effectively by the observers.

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Citations

Dec 7, 2010·Experimental Brain Research·Astrid M L Kappers, Wouter B Schakel
Nov 14, 2006·Acta Psychologica·Michelle J A DoumenJan J Koenderink
Jun 17, 2008·Acta Psychologica·Joeanna C ArthurStephen Dopkins
Apr 22, 2008·Acta Psychologica·M J A DoumenJ J Koenderink
Jan 29, 2008·Vision Research·Jan J KoenderinkJames T Todd
Mar 16, 2007·Perception·Michelle J A DoumenJan J Koenderink
May 12, 2007·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Loong-Fah Cheong, Xu Xiang
Jul 25, 2019·Journal of Neurophysiology·Jeroen B J SmeetsEli Brenner

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