QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

HOME  |   SEARCH  |   ARCHIVE  |   SUBSCRIBE  |   CONTACT  |   HELP

This Article Full Text Full Text (PDF) Submit an eLetter Alert me when this article is cited Alert me when eLetters are posted Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Fu, Y.-X. Articles by Dan, Y. Search for Related Content PubMed PubMed Citation Articles by Fu, Y.-X. Articles by Dan, Y.

 Previous Article  |  Next Article 

The Journal of Neuroscience, 2001, 21:RC172:1-5

RAPID COMMUNICATION
Motion-Induced Perceptual Extrapolation of Blurred Visual Targets

Yu-Xi Fu, Yaosong Shen, and Yang Dan

Division of Neurobiology, Department of Molecular and Cell Biology, University of California, Berkeley, California 94720

In the motion-extrapolation hypothesis, the visual system can extrapolate the instantaneous position of a moving object from its past trajectory. The existence of such a mechanism in human vision has been intensely debated. Here, we show compelling perceptual extrapolation of both first- and second-order moving stimuli, the magnitude of which depends on blurring of the visual target. The spatiotemporal characteristics of the extrapolation can be quantitatively accounted for by a simple model based on temporally biphasic neuronal response, a property widely observed among sensory neurons. Thus, motion-induced perceptual extrapolation exists in human vision, and spatial blurring is an important factor in the interaction between motion and perceptual localization.

Key words: psychophysics; motion extrapolation; second-order motion; edge; blur; localization; biphasic

---

Copyright © Society for Neuroscience  0270-6474//$05.00/0

This article has been cited by other articles:

				Y.-X. Fu, Y. Shen, H. Gao, and Y. Dan Asymmetry in Visual Cortical Circuits Underlying Motion-Induced Perceptual Mislocalization J. Neurosci., March 3, 2004; 24(9): 2165 - 2171. [Abstract] [Full Text] [PDF]

				D. Whitney, H. C. Goltz, C. G. Thomas, J. S. Gati, R. S. Menon, and M. A. Goodale Flexible Retinotopy: Motion-Dependent Position Coding in the Visual Cortex Science, October 31, 2003; 302(5646): 878 - 881. [Abstract] [Full Text] [PDF]

Home  |   Search  |   Archive  |   Subscribe  |   Contact  |   Help