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Updated: Sep 11, 2025

MPI CyberMotion Simulator: Implementation of a Novel Motion Simulator to Investigate Multisensory Path Integration in Three Dimensions
Published on: May 10, 2012
Ambiguous apparent motion in exchanging disks
1Department of Psychology, University of California, San Diego, La Jolla, CA, USA.
Abstract:
A large and a small disk with radii R and r , side by side, exchange positions repetitively at 1.33 Hz. The motion is ambiguous. If r/R< 0.8 then observers perceive a single large disk jumping back and forth across a small static disk. But if r / R> 0.8, observers perceive two static disks that expand and contract in counter phase, with no motion across the gap between the disks. Observers respond to the movement of the centroid, which is greatest when r/R< 0.8.
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