PMID: 11934159Apr 6, 2002Paper

Comparison of the spatial-frequency selectivity of local and global motion detectors

Journal of the Optical Society of America. A, Optics, Image Science, and Vision
Peter J Bex, Steven C Dakin

Abstract

Convergent physiological and behavioral evidence indicates that the initial receptive fields responsible for motion detection are spatially localized. Consequently, the perception of global patterns of movement (such as expansion) requires that the output of these local mechanisms be integrated across visual space. We have differentiated local and global motion processes, with mixtures of coherent and incoherent moving patterns composed of bandpass filtered dots, and have measured their spatial-frequency selectivity. We report that local motion detectors show narrow-band spatial-frequency tuning (i.e., they respond only to a narrow range of spatial frequencies) but that global motion detectors show broadband spatial-frequency tuning (i.e., they integrate across a broad range of spatial frequencies), with a preference for low spatial frequencies.

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Citations

Feb 18, 2011·Vision Research·David Burr, Peter Thompson
May 10, 2008·IEEE Transactions on Visualization and Computer Graphics·Sven Bachthaler, Daniel Weiskopf
Jan 22, 2003·Vision Research·Peter J Bex, Steven C Dakin
Jul 12, 2003·Vision Research·Peter J BexSteven C Dakin
Jan 24, 2012·Vision Research·Sieu K Khuu, Shazaan Khambiye
Mar 31, 2004·Vision Research·Stéphane J M Rainville, Hugh R Wilson
Mar 4, 2005·Vision Research·Peter J Bex, Steven C Dakin
Aug 16, 2005·Vision Research·Stéphane J M Rainville, Hugh R Wilson
Sep 8, 2009·Vision Research·Kaoru AmanoShin'ya Nishida
Jul 16, 2008·Vision Research·Craig Aaen-Stockdale, Robert F Hess
Jul 1, 2008·Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery·Paul WalkerTanya Gulliver
Jun 20, 2006·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Peter J Bex, Helle K Falkenberg
Feb 19, 2021·Scientific Reports·Satoshi ShioiriChia-Huei Tseng

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