From: Donald A. Glaser (glaser@socrates.Berkeley.EDU)
Date: Thu May 10 2001 - 15:05:01 MDT
We are developing computational models of primate visual cortex based on
the properties of two-dimensional arrays of interconnected model neurons
and multiple layers of such arrays. These models are designed to mimic
the anatomy and functioning of visual cortex as closely as practical and
to make predictions of observable phenomena via psychophysical,
electrophysiological, and fMRI techniques. Experiments being planned
now will involve the new Berkeley Brain Imaging Center with its 4-Tesla
fMRI system in studying patterns of cortical excitation resulting from
various visual stimuli. Psychophysical experiments to test our models
will continue in our own laboratory.
Candidates will be expected to perform some combination of analysis,
refinement, and elaboration of these or new, related, computer models,
and participate in design and implementation of psychophysical and
neuroimaging tests of these models. A strong background in
mathematics, physics, or computer science and a continuing interest in
neuroscience are required. Experience with Matlab, Mathematica, and
Linux are desirable as we will shortly install a Linux-based Beowulf
system for large computations in addition to the computers now in use.
A supercomputer at the Lawrence Berkeley National Laboratory is also
available for these studies.
Sample Publications:
1) Motion detection and characterization by an excitable membrane: The
"bow wave" model, by Donald A. Glaser, Davis Barch, Neurocomputing 26-27
(1999) 137-146
2)Characterization of activity oscillations in an excitable membrane
model and their potential functionality for neuronal computations by
Davis Barch, Neurocomputing 32-33 (2000) 25-35
3)Multiple matching of features in simple stereograms, by T. Kumar,
Vision Res. Vol 36, No. 5 pp 675-698, (1996)
4) To be presented at CNS 2001, the Tenth Annual Computational
Neuroscience Meeting at Pacific Grove, California, June 30-July 5, 2001
1) Nearby edges and lines interfere very little with width
discrimination of rectangles, by T. Kumar, Ilya Khaytin, and D. A. Glaser
2) Interactions among cortical maps, by Kirill N. Shokhirev and
Donald A. Glaser
3) Synaptic depression and facilitation can induce motion
aftereffects in an excitable membrane model of of visual motion
processing, by D. Barch, and D.A.Glaser
4) Slowly moving visual stimuli induce characteristic periodic
activity waves in an excitable membrane model of visual motion
processing, by D. Barch and D.A.Glaser
Please send your CV, a brief statement of your interests, and letters of
recommendation to:
Donald A. Glaser PhD.
Nobel Laureate in Physics
Professor of Physics and of Neurobiology in the Graduate School
University of California at Berkeley
41 Hill Road, Berkeley CA 94708
W 510-642-7231, F 510-841-2563
glaser@socrates.berkeley.edu
Thank you very much,
Donald A. Glaser
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