Correction for Meese and Summers, Area summation in human vision at and above detection threshold
نویسندگان
چکیده
منابع مشابه
Area summation in human vision at and above detection threshold
The initial image-processing stages of visual cortex are well suited to a local (patchwise) analysis of the viewed scene. But the world's structures extend over space as textures and surfaces, suggesting the need for spatial integration. Most models of contrast vision fall shy of this process because (i) the weak area summation at detection threshold is attributed to probability summation (PS) ...
متن کاملBinocular contrast vision at and above threshold.
A fundamental problem for any visual system with binocular overlap is the combination of information from the two eyes. Electrophysiology shows that binocular integration of luminance contrast occurs early in visual cortex, but a specific systems architecture has not been established for human vision. Here, we address this by performing binocular summation and monocular, binocular, and dichopti...
متن کاملTitle: Area Summation in Human Visual System: Psychophysics, Fmri and Modeling. 1 Abbreviated Title: Area Summation in Human Vision 2
Title: Area summation in human visual system: psychophysics, fMRI and modeling. 1 Abbreviated title: Area summation in human vision 2 Authors and author addresses: 3 4 Lauri Nurminen, Brain Research Unit, Low Temperature Laboratory, and Advanced 5 Magnetic Imaging Centre, Helsinki University of Technology, Espoo, Finland; 6 Department of Psychology, University of Helsinki, Helsinki, Finland 7 8...
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We measure the orientation tuning of red-green colour and luminance vision at low (0.375 c/deg) and mid (1.5 c/deg) spatial frequencies using the low-contrast psychophysical method of subthreshold summation. Orientation bandwidths of the underlying neural detectors are found using a model involving Minkowski summation of the rectified outputs of a bank of oriented filters. At 1.5 c/deg, we find...
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ژورنال
عنوان ژورنال: Proceedings of the Royal Society B: Biological Sciences
سال: 2008
ISSN: 0962-8452,1471-2954
DOI: 10.1098/rspb.2008.3002