Mechanisms for dynamic stereomotion respond selectively to horizontal velocity components

Proceedings. Biological Sciences
M J Morgan, C W Tyler

Abstract

When dynamic visual noise such as the 'snow' on a detuned television receiver is inspected with a delay between the signals in the two eyes, the noise appears to rotate in depth around a vertical axis. We propose that this dynamic noise stereophenomenon arises because channels tuned jointly to depth and motion respond selectively to horizontal motion components in the noise. We used spatially filtered stimuli to reduce the strength of vertically oriented Fourier components in the noise, and found that this reduced the strength of the stereophenomenon. Reducing the strength of horizontally oriented components had a lesser effect. Our evidence is consistent with the conclusion that stereo-motion is predominantly detected by oriented receptive fields with an aspect ratio similar to those of cortical simple cells.

References

Sep 1, 1977·Journal of Neurophysiology·J S BaizerB M Dow
Jan 1, 1975·Perception·M J Morgan, P Thompson
Jan 1, 1991·Vision Research·D L Halpern
Jan 1, 1985·Perception·K NakayamaJ Mulligan
Aug 30, 1974·Nature·C W Tyler
Mar 22, 1974·Nature·J Ross
Oct 1, 1959·The Journal of Physiology·D H HUBEL, T N WIESEL
Apr 1, 1989·Proceedings of the National Academy of Sciences of the United States of America·C Chubb, G Sperling

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Citations

Nov 19, 1997·Proceedings. Biological Sciences·M F Bradshaw, B G Cumming
May 26, 1999·Vision Research·P B HibbardB DeBruyn
May 18, 2004·Vision Research·Chris MullerWim A Van De Grind
May 22, 2007·Vision Research·Tim S Meese, Robert F Hess
Aug 26, 2000·Vision Research·S ShioiriH Yaguchi
May 18, 2000·Vision Research·M J Morgan, M Fahle
Jul 10, 2016·Attention, Perception & Psychophysics·M J MorganJ A Solomon

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