Journal article
Estimation of linear detection mechanisms for stimuli of medium spatial frequency
Vision Research, Vol.34(10), pp.1267-1278
1994
Abstract
Detection thresholds were obtained for a circularly-symmetric Gabor profile and Craik-Cornsweet profiles presented on a large white adapting field. These stimuli possessed peak spatial power between 1 and 6 c/deg. Their contrast was represented in an L, M and S cone contrast space. Detection thresholds were obtained for many vectors close to specific but theoretically important planes within this space. These data were fitted with a model comprising independent mechanisms, each a weighted sum of cone contrasts. The fit revealed a chromatic mechanism driven by ΔL/L - ΔM/M with no S cone input. Within cone contrast space, this mechanism was more sensitive than both a luminance mechanism with little S cone input but considerable variation in relative L to M cone input, and a blue-yellow chromatic mechanism.
Details
- Title
- Estimation of linear detection mechanisms for stimuli of medium spatial frequency
- Authors/Creators
- G.R. Cole (Author/Creator) - Australian National UniversityT.J. Hine (Author/Creator) - Australian National UniversityW. McIlhagga (Author/Creator) - Australian National University
- Publication Details
- Vision Research, Vol.34(10), pp.1267-1278
- Publisher
- Elsevier Limited
- Identifiers
- 991005541866207891
- Murdoch Affiliation
- School of Mathematical and Physical Sciences
- Language
- English
- Resource Type
- Journal article
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- Citation topics
- 1 Clinical & Life Sciences
- 1.7 Neuroscanning
- 1.7.203 Visual Perception
- Web Of Science research areas
- Neurosciences
- Ophthalmology
- Psychology
- ESI research areas
- Neuroscience & Behavior