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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Franco Gori
  • Vol. 27, Iss. 4 — Apr. 1, 2010
  • pp: 766–780

Bar-like S-cone stimuli reveal the importance of an intermediate temporal filter

Rigmor C. Baraas, Janus J. Kulikowski, and Mark R. Muldoon  »View Author Affiliations


JOSA A, Vol. 27, Issue 4, pp. 766-780 (2010)
http://dx.doi.org/10.1364/JOSAA.27.000766


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Abstract

The relative involvement of different temporal frequency-selective filters underlying detection of chromatic stimuli was studied. Diverse spectral stimuli were used, namely flashed blue and yellow light spots, wide bars, and narrow bars. The stimuli were temporally modulated in luminance having constant wavelength. Although the bar-like stimuli apparently reduced the sensitivity at short and long wavelengths, the cone-opponent mechanism still remained responsible for the actual stimulus detection at different temporal frequencies. The bar-like stimuli increased sensitivity for temporal frequencies around 3 6 Hz , revealing involvement of an intermediate temporal frequency-selective filter in detection, the so-called transient-1 filter. A probability summation model for the method of adjustment was developed that assumes that detection depends on the properties of the temporal filters underlying the temporal frequency-sensitivity curve. The model supports the notion that at least two temporal frequency-selective filters are necessary to account for the shape of the sensitivity curves obtained for blue bar-like stimuli.

© 2010 Optical Society of America

OCIS Codes
(330.1690) Vision, color, and visual optics : Color
(330.1720) Vision, color, and visual optics : Color vision
(330.5510) Vision, color, and visual optics : Psychophysics
(330.6180) Vision, color, and visual optics : Spectral discrimination
(330.6790) Vision, color, and visual optics : Temporal discrimination

ToC Category:
Vision, Color, and Visual Optics

History
Original Manuscript: September 10, 2009
Revised Manuscript: January 21, 2010
Manuscript Accepted: January 23, 2010
Published: March 22, 2010

Virtual Issues
Vol. 5, Iss. 8 Virtual Journal for Biomedical Optics

Citation
Rigmor C. Baraas, Janus J. Kulikowski, and Mark R. Muldoon, "Bar-like S-cone stimuli reveal the importance of an intermediate temporal filter," J. Opt. Soc. Am. A 27, 766-780 (2010)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-27-4-766

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