NDLI: Derivative of Gaussian functions as receptive field models for disparity sensitive neurons of the visual cortex

Content Provider	IEEE Xplore Digital Library
Author	Frye, R.E. Ledley, R.S.
Copyright Year	1996
Description	Author affiliation: Dept. of Physiol. & Biophys., Georgetown Univ. Med. Center, Washington, DC, USA (Frye, R.E.; Ledley, R.S.)
Abstract	Non-symmetric Gabor functions are particularly useful neurophysiologic models of simple cell receptive fields which respond to disparity characteristics of visual stimuli. The left and right visual channels of these simple cell have receptive field profiles which are phase-shifted alterations of the same one-dimensional Gabor function. These profiles resemble derivative of Gaussian (DOG) functions, although DOG functions have never been evaluated using neurophysiologic data from disparity sensitive neurons. Here the authors demonstrate (a) the space frequency response characteristics of DOG functions as a model of a single receptive field, and (b) the space-frequency response characteristics of the combinations of two same-order DOG functions as a model of a simple cell disparity neuron which combine left and right receptive fields. Combining left and right visual fields in four different ways resulted in two characteristic patterns for both even and odd ordered derivatives. Each pattern appeared to be useful, in a different way, for detecting disparity information. These results suggest that DOG functions can be used to produce a set of equations for detecting disparity information.
Starting Page	270
Ending Page	273
File Size	445279
Page Count	4
File Format	PDF
ISBN	0780331311
DOI	10.1109/SBEC.1996.493167
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-03-29
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Neurons Brain modeling Integral equations Shape Radio frequency Physiology Biophysics Frequency response Eyes
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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