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Dr. Lynn A. Olzak
Associate Professor of Psychology

University Affiliations
Dept. of Psychology
Psychology Faculty
Brain & Cog Sci Program
Developmental Psychology


Education
Ph. D., 1981
University of California,
Los Angeles


Links
Personal Web Page

Lynn A. Olzak, Ph. D.
Department of Psychology
206B Benton Hall
Miami University
Oxford, Ohio 45056

(513) 529-1754 (voice)
(513) 529-2420 (fax)

olzakla@muohio.edu (e-mail)

 

Research Interests
Identifying and psychophysically describing systems of cortical neurons and neural mechanisms that underlie basic visual processes. My interests focus on the perception of brightness, color, and patterns, and on mechanisms underlying figure-ground segregation. I use computer-generated images to measure normal human performance in a visual task. Changes in performance under different conditions permit inferences about the underlying neural mechanisms, from which I develop quantitative models of these mechanisms and processes. I have recently described a model of two families of specialized neural pathways. One is tailored to signal information about object borders and may be involved in shape recognition. The other signals information about the contrast and coarseness of surface textures. Both may be involved in scene segregation. I am currently exploring the properties of these and other mid-level cortical processes.
Representative Publications

Olzak, L. A. and Thomas, J. P. (2003) Dual nonlinearities regulate contrast sensitivity in pattern discrimination tasks. Vision Research, 43 (13), 1433-1442 .

Laack, K. A. and Olzak, L. A. (2002) Orientation-selective summing mechanisms mediate visual search. Vision Research, 42, 1871-1877.

Chubb, C., Olzak, L.. A. and Derrington, A. (2001) Second-order processes in vision: introduction. Journal of the Optical Society of America A., 18, 2175-2178.

Thomas, J. P. and Olzak, L. A. . (2001) Spatial phase sensitivity of the mechanisms that mediates discrimination of small orientation differences. Journal of the Optical Society of America A., 18, 2197-2203.

Updated on Thursday 18 March 2004, © Dept. of Psychology, all rights reserved.
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