Temporal integration of motion and stereo cues to depth.

Full Abstract

In three experiments we investigated the integration of three-dimensional information provided over time by different depth cues. In the first experiment, we found that the perceptual derivation of surface orientation from the optic flow was affected by the prior presentation of static stereo information in the same spatial location. This bias weakened as the length of the motion sequence increased, but it was still present after 800 msec. In the second experiment, conversely, we found that the perceived orientation of a stereo-specified surface was not influenced by the prior presentation of a static stereo surface. In a third experiment, we found that two surfaces defined by identical disparity fields did not elicit the same perceived depth if, previously, one of them had been specified by a conjunction of stereo and motion information. This effect was found to last for at least 400 msec. Taken together, these findings indicate that interactions exist among different sources of depth information, even when they are provided at different moments of time.

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Author information

Author/s: Domini, Fulvio (F); Caudek, Corrado (C); Skirko, Peter (P);

Affiliation: Department of Cognitive and Linguistic Sciences, Brown University, Providence, Rhode Island 02912, USA. fulvio_domini(-atsign-)brown.edu

Journal and publication information

Publication Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S.

Journal: Perception & psychophysics (Percept Psychophys), published in United States. (Language: eng)

Reference: 2003-Jan; vol 65 (issue 1) : pp 48-57

Dates: Created 2003/04/17; Completed 2003/05/14; Revised 2006/11/15;

PMID: 12699308, status: MEDLINE (last retrieval date: 12/26/2008)

Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.

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