Convexity of a set of subthreshold stimuli implies a peak detector

It has been shown that for every model of detection (whether single- or multi-channel, with linear or non-linear channels, and whatever decision rule), provided that it predicts a convex set of subthreshold stimuli, there is a psychophysically equivalent peak detector made up of a collection of line...

Full description

Saved in:
Bibliographic Details
Published in:Spatial vision 1996, Vol.10 (2), p.105-123
Main Author: Logvinenko, A.D
Format: Article
Language:English
Subjects:
Biological and medical sciences
Contrast Sensitivity - physiology
Fundamental and applied biological sciences. Psychology
Humans
Mathematics
Models, Biological
Perception
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Sensory Thresholds
Space life sciences
Space Perception - physiology
Vision
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:It has been shown that for every model of detection (whether single- or multi-channel, with linear or non-linear channels, and whatever decision rule), provided that it predicts a convex set of subthreshold stimuli, there is a psychophysically equivalent peak detector made up of a collection of linear analysers followed by a maximum-output decision rule. In this paper, the equivalent peak detector representations of some widely accepted detection models are calculated. The calculations rest on a general technique for deriving, from a given model, a formula which specifies the analyser most sensitive to any given stimulus.
ISSN:0169-1015
1568-5683
0169-1015
DOI:10.1163/156856896X00088