A reprint of this article is available upon request.

Reference Type: Journal Article
Record Number: 2194
Author: Solomon, J. A.
Year: 2000
Title: Channel selection with non-white-noise masks
Journal: J Opt Soc Am A Opt Image Sci Vis
Volume: 17
Issue: 6
Pages: 986-93.
Accession Number: 10850468
Keywords: Human
Male
*Models, Biological
*Perceptual Masking
Sensory Thresholds/physiology
Support, Non-U.S. Gov't
Vision/*physiology
Abstract: It is frequently assumed that the accuracy with which luminance gratings can be detected depends solely on the signal-to-noise ratio at the output of a single linear channel. Proportionality between threshold elevation and power spectral density is implicit in this assumption. I demonstrate that this proportionality does not hold for 1- cycle/degree gratings masked by low-pass noise with a 0.5-cycle/degree cutoff frequency. This implies that different channels can mediate detection, depending on the contrast of masking stimuli.
URL: http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=10850468
Author Address: Institute of Ophthalmology, London, UK.