Abstract

This proposal aims to use fMRI as an index of human cortical activity when viewing colored objects. Color tuning will be measured in different regions of visual cortex. The neural basis of two main color phenomena will studied. The first question is how the visual system compensates for changes in the ambient illumination and computes a relatively constant color appearance for surfaces. The second study address the problem of why colored patterns at high temporal or spatial frequency appear achromatic.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Eye Institute (NEI)
Type
Research Project (R01)
Project #
2R01EY003164-18
Application #
2019431
Study Section
Visual Sciences B Study Section (VISB)
Project Start
1979-07-01
Project End
2002-02-28
Budget Start
1997-03-01
Budget End
1998-02-28
Support Year
18
Fiscal Year
1997
Total Cost
Indirect Cost

  Institution

Name
Stanford University
Department
Psychology
Type
Schools of Arts and Sciences
DUNS #
800771545
City
Stanford
State
CA
Country
United States
Zip Code
94305

  Publications

Dumoulin, Serge O; Harvey, Ben M; Fracasso, Alessio et al. (2017) In vivo evidence of functional and anatomical stripe-based subdivisions in human V2 and V3. Sci Rep 7:733
Horiguchi, Hiroshi; Wandell, Brian A; Winawer, Jonathan (2016) A Predominantly Visual Subdivision of The Right Temporo-Parietal Junction (vTPJ). Cereb Cortex 26:639-646
Wandell, Brian A; Winawer, Jonathan (2015) Computational neuroimaging and population receptive fields. Trends Cogn Sci 19:349-57
Hermes, D; Miller, K J; Wandell, B A et al. (2015) Stimulus Dependence of Gamma Oscillations in Human Visual Cortex. Cereb Cortex 25:2951-9
Kay, Kendrick N; Weiner, Kevin S; Grill-Spector, Kalanit (2015) Attention reduces spatial uncertainty in human ventral temporal cortex. Curr Biol 25:595-600
Witthoft, Nathan; Nguyen, Mai Lin; Golarai, Golijeh et al. (2014) Where is human V4? Predicting the location of hV4 and VO1 from cortical folding. Cereb Cortex 24:2401-8
Wandell, Brian A; Yeatman, Jason D (2013) Biological development of reading circuits. Curr Opin Neurobiol 23:261-8
Kay, Kendrick N; Winawer, Jonathan; Rokem, Ariel et al. (2013) A two-stage cascade model of BOLD responses in human visual cortex. PLoS Comput Biol 9:e1003079
Horiguchi, Hiroshi; Winawer, Jonathan; Dougherty, Robert F et al. (2013) Human trichromacy revisited. Proc Natl Acad Sci U S A 110:E260-9
Winawer, Jonathan; Kay, Kendrick N; Foster, Brett L et al. (2013) Asynchronous broadband signals are the principal source of the BOLD response in human visual cortex. Curr Biol 23:1145-53

Showing the most recent 10 out of 64 publications