May 23, 2002

Consistent stereoscopic information increases the perceived speed of vection in depth

Perception
Stephen Palmisano

Abstract

Previous research found that adding stereoscopic information to radially expanding optic flow decreased vection onsets and increased vection durations (Palmisano, 1996 Perception & Psychophysics 58 1168-1176). In the current experiments, stereoscopic cues were also found to increase perceptions of vection speed and self-displacement during vection in depth--but only when these cues were consistent with monocularly available information about self-motion. Stereoscopic information did not appear to be improving vection by increasing the perceived maximum extent of displays or by making displays appear more three-dimensional. Rather, it appeared that consistent patterns of stereoscopic optic flow provided extra, purely binocular information about vection speed, which resulted in faster/more compelling illusions of self-motion in depth.

Mentioned in this Paper

Depth Perception
Vision, Binocular
Psychophysics
Optic Flow
Motion Perception

About this Paper

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