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Title: | Perception of acceleration in motion-in-depth with only monocular and both monocular and binocular information |
Author: | López-Moliner, Joan Maiche, Alejandro Estaún i Ferrer, Santiago |
Keywords: | Velocitat Percepció visual Speed Visual perception |
Issue Date: | 2003 |
Publisher: | Universitat de València |
Abstract: | Observers are often required to adjust actions with objects that change their speed. However, no evidence for a direct sense of acceleration has been found so far. Instead, observers seem to detect changes in velocity within a temporal window when confronted with motion in the frontal plane (2D motion). Furthermore, recent studies suggest that motion-in-depth is detected by tracking changes of position in depth. Therefore, in order to sense acceleration in depth a kind of second-order computation would have to be carried out by the visual system. In two experiments, we show that observers misperceive acceleration of head-on approaches at least within the ranges we used [600-800 ms] resulting in an overestimation of arrival time. Regardless of the viewing condition (only monocular or monocular and binocular), the response pattern conformed to a constant velocity strategy. However, when binocular information was available, overestimation was highly reduced. |
Note: | Reproducció del document publicat a: http://www.uv.es/psicologica/articulos1.03/6-LOPEZMOLINER.pdf |
It is part of: | Psicologica, 2003, vol. 24, p. 93-108 |
URI: | http://hdl.handle.net/2445/55507 |
ISSN: | 0211-2159 |
Appears in Collections: | Articles publicats en revistes (Cognició, Desenvolupament i Psicologia de l'Educació) |
Files in This Item:
File | Description | Size | Format | |
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513770.pdf | 306.79 kB | Adobe PDF | View/Open |
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