Welcome to the JWLOrientedGabor repository!
This repository runs on the ISETBIO toolbox and is created by the NYU ISETBIO team (JWL stands for Jonathan Winawer Lab): Eline Kupers & Jonathan Winawer. This project is funded by the NEI grant: 'Linking brain and behavior 'around' the visual field' by Marisa Carrasco (NYU) and Jonathan Winawer (NYU)
The paper related to this project can be found on bioRxiv (https://www.biorxiv.org/content/10.1101/434514v2) and is now accepted in PLOS Computational Biology!
This repository creates a computational observer model, containing multiple stages of the front-end of the visual system for a particular visual scene or psychophysical experiment.
The current state of this repository construct a scene with 2 Gabor stimuli (oriented clockwise or counter-clockwise), that goes through the optics and gets sampled by a small cone mosaic patch. The cone absorptions are then used to simulate a 2-AFC orientation discrimination task with a linear classifier.
Eventually, we would like to model more stages of the visual pathway: For example:
We can then vary these stages systematically and compute how much of these variations can account for variations in the computational observer performance for the given task as a function of the visual field position of the stimulus.
This repository is MATLAB-based (v9.1) and depends on the following toolboxes:
MATLAB Toolboxes:
% Run default observer model for CW/CCW Gabors at 4.5 deg eccentricity, 4 cpd, with small fixational eyemovements
runComputationalObserverModel('default')