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Chromatic collinear facilitation, further evidence for chromatic form perception

Chromatic collinear facilitation, further evidence for chromatic form perception Spatial Vision , Vol. 19, No. 6, pp. 547 – 568 (2006)  VSP 2006. Also available online - www.brill.nl/sv Chromatic collinear facilitation, further evidence for chromatic form perception TAL ELLENBOGEN 1 , 2 , URI POLAT 3 , ∗ and HEDVA SPITZER 1 1 Department of Biomedical Engineering, Faculty of Engineering, Tel Aviv University, Tel Aviv, Israel 2 The Abramson Center of Medical Physics, Sackler Faculty of Exact Sciences, Tel-Aviv University, Tel Aviv, Israel 3 Goldschleger Eye Research Institute, Tel-Aviv University, Sheba Medical Center, Tel Hashomer, 52621 Tel Aviv, Israel Received 13 September 2005; accepted 5 May 2006 Abstract —Collinear facilitation of contrast detection of achromatic stimuli has been studied over the past decade by different groups. We measured collinear facilitation of chromatic contrast detection under equal-luminance (photometric quantity) and under isoluminance (minimum motion technique) conditions, as two different controls. The facilitation was tested for chromatic contrast detection of a foveal Gabor signal flanked by two high chromatic-contrast Gabor signals. The results indicated a significant facilitation in the presence of spatial adjacent collinear chromatic contrast signals, when the flankers were located at a short distance, across all observers for three chromatic channels. The facilitation was compared to http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Spatial Vision (continued as Seeing & Perceiving from 2010) Brill

Chromatic collinear facilitation, further evidence for chromatic form perception

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References (82)

Publisher
Brill
Copyright
© 2006 Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0169-1015
eISSN
1568-5683
DOI
10.1163/156856806779194062
Publisher site
See Article on Publisher Site

Abstract

Spatial Vision , Vol. 19, No. 6, pp. 547 – 568 (2006)  VSP 2006. Also available online - www.brill.nl/sv Chromatic collinear facilitation, further evidence for chromatic form perception TAL ELLENBOGEN 1 , 2 , URI POLAT 3 , ∗ and HEDVA SPITZER 1 1 Department of Biomedical Engineering, Faculty of Engineering, Tel Aviv University, Tel Aviv, Israel 2 The Abramson Center of Medical Physics, Sackler Faculty of Exact Sciences, Tel-Aviv University, Tel Aviv, Israel 3 Goldschleger Eye Research Institute, Tel-Aviv University, Sheba Medical Center, Tel Hashomer, 52621 Tel Aviv, Israel Received 13 September 2005; accepted 5 May 2006 Abstract —Collinear facilitation of contrast detection of achromatic stimuli has been studied over the past decade by different groups. We measured collinear facilitation of chromatic contrast detection under equal-luminance (photometric quantity) and under isoluminance (minimum motion technique) conditions, as two different controls. The facilitation was tested for chromatic contrast detection of a foveal Gabor signal flanked by two high chromatic-contrast Gabor signals. The results indicated a significant facilitation in the presence of spatial adjacent collinear chromatic contrast signals, when the flankers were located at a short distance, across all observers for three chromatic channels. The facilitation was compared to

Journal

Spatial Vision (continued as Seeing & Perceiving from 2010)Brill

Published: Jan 1, 2006

Keywords: COLOR VISION; LATERAL FACILITATION; VISUAL CORTEX; COLLINEAR; ISOLUMINANCE; CONTRAST

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