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James W. Pennebaker, Chair The University of Texas at Austin, SEA 4.212, Austin, TX 78712 • (512) 475-7596

Wilson S Geisler III

Professor PhD, Indiana University

David Wechsler Regents Chair, Director of the Center for Perceptual Systems
Wilson S Geisler III

Contact

  • Phone: (512) 471-5380
  • Office: SEA 4.328A
  • Office Hours: TTh immediately after class
  • Campus Mail Code: A8000

Biography

Bill Geisler received his Ph.D. from the Indiana University before coming to the University of Texas. He is director of the Center for Perceptual Systems, holder of the David Wechsler Regents Chair in Psychology, a member of the Institute for Neuroscience and on the faculty of the Biomedical Engineering Program. Geisler has broad interests within the general areas of vision, visual perception and the evolution of perceptual systems. In his lab, scientific questions are often attacked with multiple techniques: psychophysics (behavior), neurophysiology (in collaboration with Professors Albrecht and Seidemann), image and scene analysis, and mathematical and computational modeling. Current projects are concerned with perceptual grouping, visual search, natural scene statistics, and the neurophysiology of primary visual cortex.

Center for Perceptual Systems

Selected Publications (See lab page for full list with PDF downloads)

 

Interests

Vision, mathematical psychology, and computer vision

PSY 394U • Adv Tpcs In Perceptual Sys

43985 • Fall 2014
Meets W 1100am-200pm SEA 4.324
show description

Seminars in Cognitive or Perceptual Systems. Three lecture hours a week for one semester. May be repeated for credit when the topics vary. Prerequisite: Graduate standing and consent of instructor.

PSY 323 • Perception

43990 • Spring 2014
Meets TTH 1230pm-200pm PHR 2.110
show description

Theory and research in the ways we extract information from the environment. Three lecture hourse a week for one semester. Prerequisite: For psychology majors, upper-division standing and Psychology 301 and 418 with a grade of at least C in each; for nonmajors, upper-division standing, Psychology 301 with a grade of at least C, and one of the following with a grade of at least C: BIO 318M, Civil Engineering 311S, Economics 329, Educational Psychology 371, Electrical Engineering 351K, Government 350K, Mathematics 316, 362K, Mechanical Engineering 335, Psychology 317, Sociology 317L, Social Work 318, Statistics 309, Statistics and Scientific Computation 302, 303, 304, 305, 306, 318.

PSY 394U • Adv Tpcs In Perceptual Sys

44020 • Fall 2013
Meets W 1100am-200pm SEA 4.324
show description

Seminars in Cognitive or Perceptual Systems. Three lecture hours a week for one semester. May be repeated for credit when the topics vary. Prerequisite: Graduate standing and consent of instructor.

PSY 323 • Perception

43335 • Spring 2013
Meets TTH 200pm-330pm NOA 1.124
show description

Theory and research in the ways we extract information from the environment. Three lecture hourse a week for one semester. Prerequisite: For psychology majors, upper-division standing and Psychology 301 and 418 with a grade of at least C in each; for nonmajors, upper-division standing, Psychology 301 with a grade of at least C, and one of the following with a grade of at least C: BIO 318M, Civil Engineering 311S, Economics 329, Educational Psychology 371, Electrical Engineering 351K, Government 350K, Mathematics 316, 362K, Mechanical Engineering 335, Psychology 317, Sociology 317L, Social Work 318, Statistics 309, Statistics and Scientific Computation 302, 303, 304, 305, 306, 318.

PSY 394U • Adv Tpcs In Perceptual Sys

43555 • Fall 2012
Meets W 1100am-200pm SEA 4.324
show description

Seminars in Cognitive or Perceptual Systems. Three lecture hours a week for one semester. May be repeated for credit when the topics vary. Prerequisite: Graduate standing and consent of instructor.

PSY 323 • Perception

43195 • Spring 2012
Meets TTH 1230pm-200pm NOA 1.124
show description

The perceptual systems (vision, hearing, touch, smell, and so on) are the brain’s window on the world. This lecture course presents an introduction to perceptual systems with an emphasis on perception in humans and non-human primates. In this course, students will learn about the physics of perceptual stimuli, the neural processing of perceptual information, the performance of humans (and other primates) in perceptual tasks, and the evolution of perceptual systems.

PSY 394U • Adv Tpcs In Perceptual Sys

43450 • Fall 2011
Meets W 1100am-200pm SEA 4.324
show description

Seminars in Cognitive or Perceptual Systems. Three lecture hours a week for one semester. May be repeated for credit when the topics vary. Prerequisite: Graduate standing and consent of instructor.

PSY 323 • Perception

43700 • Spring 2011
Meets TTH 1230pm-200pm NOA 1.124
show description

 Content:

The perceptual systems (vision, hearing, touch, smell, and so on) are the brainʼs window on the world.

This lecture course presents an introduction to perceptual systems with an emphasis on perception in

humans and non-human primates. In this course, students will learn about the physics of perceptual

stimuli, the neural processing of perceptual information, the performance of humans (and other primates)

in perceptual tasks, and the evolution of perceptual systems.

 Grades:

Two one-hour exams and a comprehensive final will be given in this course. Exams will be a mixture of

multiple choice and short answer questions. The one-hour exams will each be worth 30% and the final

exam 40% of the grade. The exams and finals may include some questions based upon lecture material

not covered (or not covered extensively) in the readings.

PSY 380E • Vision Systems

43875 • Spring 2011
Meets TTH 330pm-500pm SEA 2.224
show description

Introduction to the anatomy, physiology, and psychophysics of human vision from an information-processing and computational perspective. Three lecture hours a week for one semester. Neuroscience 380E and Psychology 380E may not both be counted. Prerequisite: Graduate standing and consent of instructor.

PSY 394U • Adv Tpcs In Perceptual Sys

43405 • Fall 2010
Meets T 330pm-630pm SEA 4.324
show description

Seminars in Cognitive and Perceptual Systems. Three lecture hours a week for one semester. May be repeated for credit when the topics vary. Prerequisite: Graduate standing and consent of instructor.

PSY 323 • Perception

43855 • Spring 2010
Meets TTH 1230pm-200pm NOA 1.124
show description

Perception (PSY 323) 43855
Spring 2010, TTH 12:30-2:00, NOA 1.124
 
Instructor:   Wilson S. Geisler   
Office:   SEA 4.328 (phone: 471-5380, email: geisler@psy.utexas.edu)
Office hours:  T TH immediately after class
TA: Llewyn Paine (email: llpaine@mail.utexas.edu)
Office: SEA 5.118
Office hours: MWF 1:00-2:00
 
Content:
The perceptual systems (vision, hearing, touch, smell, and so on) are the brain’s window on the world. 
This lecture course presents an introduction to perceptual systems with an emphasis on perception in
humans and non-human primates.  In this course, students will learn about the physics of perceptual
stimuli, the neural processing of perceptual information, the performance of humans (and other primates)
in perceptual tasks, and the evolution of perceptual systems.
 
Grades: 
Two one-hour exams and a comprehensive final will be given in this course.  Exams will be a mixture of
multiple choice and short answer questions.  The one-hour exams will each be worth 30% and the final
exam 40% of the grade.  The exams and finals may include some questions based upon lecture material
not covered (or not covered extensively) in the readings.
 
Textbook and readings:
Blake, R. and Sekuler, R. (2006) Perception (5th Edition), New York:  McGraw-Hill.
 
Other course materials will be available at the website:  http://homepage.psy.utexas.edu. To get these
materials go to “Classes” at this site and then go to “323”.  Let me know if you have any trouble.
 
More about the instructor and perception research on campus see: www.cps.utexas.edu/ 
 
The University of Texas at Austin provides upon request appropriate academic accommodations for
qualified students with disabilities.  For more information, contact the Office of the Dean of Students at
471-6259, 471-4641 TTY.
 
The Psychology Department will drop all students who do not meet the following prerequisites:
(a) PSY 301 with a C or better
(b) PSY 418 (or an equivalent listed in the course schedule) with a C or better
(c) Upper-Division standing (60 hours completed)
 
Tentative schedule of lectures:
Date Topic      Reading
 
1/19 Introduction     S&B 1
 
1/21 Approaches and methods   S&B 1, Appendix
 
1/26 No class (AIC)     S&B 1
 
1/28 Sound, acoustics    S&B 10
 
2/2 The ear      S&B 10
 
2/4 Auditory pathways    S&B 10
 
2/9 Sensitivity and masking     S&B 11, Appendix
 
2/11 Loudness and pitch perception   S&B 11
 
2/16 Sound localization and grouping   S&B 11
 
2/18 Speech perception    S&B 11     
 
2/23 Light and the eye    S&B 2
 
2/25 The photoreceptors    S&B 2
 
3/2 FIRST EXAM
 
3/4 The retina     S&B 3
 
3/9 Vision and the retina    S&B 3
 
3/11 Central visual pathways    S&B 4
 
3/16 Spring Break
 
3/18 Spring Break
 
3/23 Central visual pathways    S&B 4
 
3/25 Spatial vision and form perception  S&B 5
 
3/30 Spatial vision and form perception  S&B 5
 
4/1 Eye movements     S&B 2 (p. 34-40), 9 (p. 327-333)  
 
4/6 Object perception (USC; guest)   S&B 6 (p. 193-214)
                                     
4/8 Color perception    S&B 7
 
4/13 Color perception    S&B 7
 
4/15 Depth perception    S&B 8
 
4/20 Depth and motion perception    S&B 8, 9
 
4/22 Motion and event perception   S&B 9
 
4/27 SECOND EXAM (NAS; LP)    
 
4/29 Visual attention     S&B 6 (p. 215-231)
 
5/4 Evolution of perceptual systems   
 
5/6 Review for final
 
5/12 FINAL EXAM (2:00-5:00)
 
 

PSY 380E • Vision Systems

44035 • Spring 2010
Meets TTH 330pm-500pm SEA 2.224
(also listed as NEU 380E )
show description

Introduction to the anatomy, physiology, and psychophysics of human vision from an information-processing and computational perspective. Three lecture hours a week for one semester. Neuroscience 380E and Psychology 380E may not both be counted. Prerequisite: Graduate standing and consent of instructor.

PSY 394U • Adv Tpcs In Perceptual Sys

44362 • Fall 2009
Meets T 330pm-630pm SEA 4.324
show description

Seminars in Cognitive and Perceptual Systems. Three lecture hours a week for one semester. May be repeated for credit when the topics vary. Prerequisite: Graduate standing and consent of instructor.

PSY 323P • Percep Sys: Neurons/Behav/Evol

43100 • Spring 2009
Meets TTH 930-1100 SEA 3.250
show description

An introduction to perceptual systems, with an emphasis on percetion in human and nonhuman primates. Topics include the physics of perceptual stimuli, the neural processing of perceptual information, the performance of human and other primates in perceptual tasks, and the evolution of perceptual systems.  Three lecture hours a week for one semester. PSY 323P and 341K (Topic: Perceptual Systems: Neurons/Behavior/Evolution) may not both be counted. Mathematics 316, Psychology 317, Sociology 317L, Social Work 318311S, Economics 329, Educational Psychology 371, Government 350K,following with a grade of at least C: Biology 318M, Civil Engineeringstanding, Psychology 301 with a grade of at least C, and one of the418 with a grade of at least C in each; for nonmajors, upper-divisionFor psychology majors, upper-division standing and Psychology 301 andPrerequisite: Statistics 309

PSY 380E • Vision Systems

43290 • Spring 2009
Meets TTH 330pm-500pm SEA 2.224
(also listed as NEU 380E )
show description

Introduction to the anatomy, physiology, and psychophysics of human vision from an information-processing and computational perspective. Three lecture hours a week for one semester. Neuroscience 380E and Psychology 380E may not both be counted. Prerequisite: Graduate standing and consent of instructor.

Publications

Burge, J. & Geisler, W.S .(2014) Optimal disparity estimation in natural stereo images. Journal of Vision, 14(2):1, 1-18.
download

D'Antona, A.D., Perry, J.S., Geisler, W.S. (2013) Humans make efficient use of natural image statistics when performing spatial interpolation. Journal of Vision, 13(14):11, 1-3.
download

Michel, MM, Chen Y, Geisler WS, Seidemann E (2013) An illusion predicted by V1 population activity implicates cortical topography in shape perception. Nature Neuroscience, 16, 1477-1483.
download

Burge, J. & Geisler, W.S. (2013) Simulation of mouse vision that appeared in a news feature by Monya Baker. "Through the eyes of a mouse", Nature, 502, 156-158.
Image         Link to feature

Burge, J. & Geisler, W.S. (2012) Optimal defocus estimates from individual images for autofocusing a digital camera. Proceedings of the SPIE, 8299, 82990: E1:E12, January: Burlingame, CA.
download

Burge, J. & Geisler, W.S. (2011) Optimal defocus estimation in individual natural images. Proceedings of the National Academy of Sciences, 108 (40): 16849-16854
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Geisler, W.S. & Perry, J.S. (2011) Statistics for optimal point prediction in natural images. Journal of Vision, 11(12):14, 1-17.
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McCann, B., Hayhoe, M. & Geisler, W.S. (2011) Decoding natural signals from peripheral retina. Journal of Vision, 11(10):19, 1-11.
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Zhaoping, L., Geisler, W.S. & May, K.A. (2011) Human wavelength discrimination of monochromatic light explained by optimal wavelength decoding of light of unknown intensity. PLoS One, 6, e19248.
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Geisler, W.S. & Cormack, L.K. (2011) Models of overt attention. In S.P. Liversedge, I.D. Gilchrist & S. Everling (Ed.) Oxford Handbook of Eye Movements. New York: Oxford University Press.
download

Michel, M.M. & Geisler, W.S. (2011) Intrinsic position uncertainty explains detection and localization performance in peripheral vision. Journal of Vision, 11(1):18, 1-18.
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Geisler, W.S. (2011) Contributions of ideal observer theory to vision research. Vision Research, 51, 771-781.
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Ing, A.D., Wilson, J.A. & Geisler, W.S. (2010) Region grouping in natural foliage images: Image statistics and human performance. Journal of Vision. 10(4):10, 1-19.
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Geisler, W.S., Najemnik, J. & Ing, A.D. (2009) Optimal stimulus encoders for natural tasks. Journal of Vision, 17, 1-16.
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Geisler, W.S., Perry, J.S. & Ringach, D. (2009) Natural Systems Analysis. Visual Neuroscience, 26, 1-3.
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Geisler, W.S. & Perry, J.S. (2009) Contour statistics in natural images: Grouping across occlusions. Visual Neuroscience, 26, 109-121.
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Michel, M.M. & Geisler, W.S. (2009) Gaze contingent displays: Analysis of saccadic plasticit in visual search. Society for Information Display Technical Digest. 40 (1),911-914.
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Najemnik, J. & Geisler, W.S. (2009) Simple summation rule for optimal fixation selection in visual search. Vision Research, 49, 1286-1294.
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Seidemann, E., Chen, Y. and Geisler, W.S. (2009) Encoding and decoding with neural populations in the primate cortex. In: M.S. Gazzaniga (Ed.) The Cognitive Neurosciences, 4th Edition. Cambridge: MIT Press, 419-434.
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Sit, Y.F., Chen, Y., Geisler, W.S., Miikkulainen, R. & Seidemann, E. (2009) Complex dynamics of V1 population responses explained by a simple gain-control model. Neuron, 64, 943-956.
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Geisler, W.S. (2008) Visual perception and the statistical properties of natural scenes. Annual Review of Psychology Annual Review of Psychology, 59, 167-192.
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Najemnik, J. & Geisler, W.S. (2008) Eye movement statistics in humans are consistent with an optimal search strategy. Journal of Vision Journal of Vision, 8, 1-14.
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Chen, Y., Geisler, W.S. & Seidemann, E. (2008) Optimal temporal decoding of neural population responses in a reaction-time detection task. Journal of Neurophysiology, 99,1366-1379.
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Tversky, T. & Geisler, W.S. (2007) Optimal sensor design for estimating local velocity in natural environments. In: B. Rogowitz and T. Pappas (Eds.), Human Vision and Electronic Imaging. SPIE Proceedings, Vol 6492, 649205.
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Geisler, W.S., Albrecht, D.G. & Crane, A.M. (2007) Responses of neurons in primary visual cortex to transient changes in local contrast and luminance. The Journal of Neuroscience, 27 (19) 5063-5067. PDF Supplementary Information
download

Frazor, R. & Geisler, W.S. (2006) Local luminance and contrast in natural images. Vision Research, 46, 1585-1598.
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Geisler, W.S., Perry, J.S. & Najemnik, J. (2006) Visual search: The role of peripheral information measured using gaze-contingent displays.. Journal of Vision J6, 858-873.
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Chen, Y., Geisler, W.S. & Seidemann, E. (2006) Optimal decoding of correlated neural population responses in the primate cortex.. Nature Neuroscience, 9 (11) 1412-1420.
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Najemnik J., & Geisler W.S. (2005) Optimal eye movement strategies in visual search.. Nature, 434, 387-391.
Supplementary information PDF
download

Raj R., Geisler W.S.,  Frazor R. & Bovik, A. (2005) Contrast statistics for foveated visual systems: Fixation selection by minimizing contrast entropy. Journal of the Optical Society of America A., 22 (10) 2039-2049.
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Mant, V., Frazor R., Bronin V., Geisler W.S. & Carandini M. (2005) Independence of luminance and contrast in natural scenes and in the early visual system. Nature Neuroscience,8 (12) 1690-1697. PDF Supplementary Information PDF

Frazor R., Albrecht D., Geisler WS. & Crane A. (2004) Visual cortex neurons of monkeys and cats: Temporal dynamics of the spatial frequency response function. Journal of Neurophysiology, 91, 2607-2627.
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Tversk, T., Geisler W.S. & Perry J.S. (2004) Contour grouping: Closure effects are explained by good continuation and proximity. Vision Research, 44, 2769-2777.
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Geisler W.S. & Diehl R.L. (2003) A Bayesian approach to the evolution of perceptual and cognitive systems.. Cognitive Science, 27, 379-402.
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Geisler W. S. (2003) Ideal Observer analysis. In: L. Chalupa and J. Werner (Eds.), The Visual Neurosciences. Boston: MIT press, 825-837.
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Albrecht D., Geisler W.S. & Crane A. (2003) Nonlinear properties of visual cortex neurons: Temporal dynamics, stimulus selectivity, neural performance. In: L Chalupa and J. Werner (Eds.), The Visual Neurosciences. Boston: MIT Press, 747-764.
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Geisler W.S. & Murray R.M. (2003) Practice doesn't make perfect. Nature, 423, 696-697.
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Geisler W.S. & Diehl R.L. (2002) Bayesian natural selection and the evolution of perceptual systems.. Philosophical Transactions of the Royal Society London B, 357, 419-448.
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Geisler W.S. & Perry J.S. (2002) Real-time simulation of arbitrary visual fields.. Proceedings of the Eye Tracking Research & Applications Symposium (ACM) 83-87.
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Perry J.S. & Geisler W.S. (2002) Gaze-contingent real-time simulation of arbitrary visual fields. Human Vision and Electronic Imaging VII, SPIE Proceeding.
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Albrecht D., Geisler W.S., Frazor R. & Crane A. (2002) Visual cortex neurons of monkeys and cats: Temporal dynamics of the contrast response function.. Journal of Neurophysiology, 88: 889-913.
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Geisler W.S. & Kersten D. (2002) Illusions, perception and Bayes. Nature Neuroscience, 5, 508-510.
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Geisler, W.S. (2001) Edge co-occurrence in natural images predicts contour grouping performance. Vision Research, 41, 711-724.
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Geisler W.S. (2001) Motion direction signals in the primary visual cortex of cat and monkey.. Visual Neuroscience, 18, 501-516.
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Geisler W.S., Thornton T., Gallogly D.P. & Perry J. (2000) Image structure models of texture and contour visibility. Proceeding of the NATO Workshop on Search and Target Acquisition, The Netherlands, 21-23 June 1999. Abstract

Geisler W.S. and Albrecht D.G. (2000) Spatial vision: Single neurons and perception. Chapter for the Handbook of Cognition and Perception. New York: Academic Press.
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Heeger D., Huk A.C., Geisler W.S. & Albrecht D. (2000) Spikes vs. Bold: What does neuroimaging tell us about neural activity?. Nature Neuroscience, 3, 631-633.
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Geisler W.S. & Super B. (2000) Perceptual organization of two-dimensional patterns. Psychological Review, 107 (4) 677-708.
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Geisler W.S. & Perry J.S. (1999) Variable resolution displays for visual communications and simulation. Society for Information Display Technical Digest, 30, 420-423.

Geisler W.S. (1999) Motion streaks provide a spatial code for motion direction.. Nature, 400, 65-69.
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Geisler W.S. & Albrecht D.G. (1997) Visual cortex neurons in monkeys and cats: Detection, discrimination and identification.. Visual Neuroscience, 14, 897-919.
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Geisler, W. S. and Super, B. J. (1996) Perceptual organization of two-dimensional patterns. Technical Report: UT-CVIS-96-002, Austin, Texas: Center for Vision and Image Sciences. Abstract

Geisler W.S. & Banks M.S. (1995) Visual performance. In: Handbook of Optics. New York: McGraw-Hill.

Geisler W.S. (1995) Discrimination information in natural radiance spectra. In: Vision Models for Target Detection and Recognition, Eli Peli ed., Information Display Series, World Scientific Publishing Co., Inc., 117-131.

 Chou K.L. & Geisler W.S. (1995) Separation of low-level and high-level factors in complex tasks: Visual search. Psychological Review, 102, 356-378.
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Hahn L.W. & Geisler W.S. (1995) Adaptation mechanisms in spatial vision I: Bleaches and backgrounds.. Vision Research, 35, 1585-1594.
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Klarquist W.N., Geisle, W.S.,  & Bovik A.C. (1995) Maximum-likelihood depth-from-defocus for active vision..IEEE International Conference on Intelligent Robots and Systems.

Geisler W.S. & Albrecht D.G. (1995) Bayesian analysis of identification performance in monkey visual cortex: Nonlinear mechanisms and stimulus certainty. Vision Research, 35: 2723-2730.
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Kortum P.T. & Geisler W.S. (1995) Adaptation mechanisms in spatial vision II:
Flash thresholds and background adaptation
. Vision Research, 35, 1595-1609.
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Geisler W.S. & Albrect, D.G. (1994) Visual cortex neurons in monkey and cat: Contrast response nonlinearities and stimulus selectivity. In: T. Lawton (Ed.), Computational Vision Based On Neurobiology, SPIE Proceedings 2054, 12-31.

Scharff L. & Geisler W.S. (1992) Stereopsis at isoluminance in the absence of chromatic aberrations.. Journal Of Optical Society of America, 9, 868-876.
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Geisler W.S. & Albrecht D.G. (1992) Cortical neurons: Isolation of contrast gain. Vision Research 32, 1409-1410.
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Davila K. & Geisler W.S. (1991) The relative contributions of pre-neural and neural factors to areal summation in the fovea.. Vision Research 31, 1369-1380.
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Geisler W.S., Albrecht D.G., Salvi R. & Saunders S.S. (1991) Discrimination performance of single neurons: rate and temporal-pattern information. Journal of Neurophysiology 66, 334-362.
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Albrecht D.G. & Geisler W.S. (1991) Motion selectivity and the contrast-response function of simple cells in the visual cortex. Visual Neuroscience 7, 531-546.
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Bovik A.C.,  Clark M. & Geisler W.S. (1990) Multichannel texture analysis using localized spatial filters.. Pattern Analysis and Machine Intelligence 12, 55-73.
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Jordan J.R., Geisler W.S. & Bovik A.C. (1990) Color as a source of information in the stereo correspondence process. Vision Research 30, 1955-1970.
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Geisler W.S. (1989) Ideal-observer theory in psychophysics and physiology. Physica Scripta 39, 153-160.

Geisler W.S. (1989) Sequential ideal-observer analysis of visual discrimination. Psychological Review 96, 267-314.
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Hamilton, D.,  Albrecht, D.G. & Geisler, W. (1989) Visual cortical receptive fields in monkey and cat: Spatial and temporal phase transfer function.. Vision Research 29, 1285-1308. PDF

Geisler W.S. (1987) Ideal-observer analysis of visual discrimination. National Academy Press, Washington.
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Geisler, W., Jordan, J. & Bovik, A.C. (1987) Chromaticity as a source of information in the human stereo correspondence process.. Proceedings of the IEEE International Conference on Systems, Man, and Cybernetics.

Geisler, W., Clark, M. & Bovik, A.C. (1987) Experiments with a theory of visual texture segmentation using modulation/demodulation processes.. Proceedings of the IASTED International Symposium on Signal Processing and its Applications.

Geisler, W., Clark, M. & Bovik, A.C. (1987) Texture segmentation using a class of narrowband filters. Proceedings of the IEEE International Conference on Acoustics, Speech, and Signal Processing.

Bank, M.S., Geisler W.S. & Bennett P. (1987) The physical limits of grating visibility. Vision Research 27, 1915-1924.
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Geisler, W. (1987) SDE software package. Vision Research 27, I.

Geisler, W. (1987) Texture segmentation using Gabor modulation/demodulation. Pattern Recognition Letters 6, 261-267.

Geisler, W., Bovik, A. & Clark, M. (1987) Computational texture analysis using localized spatial filtering. Proceedings of Workshop on Computer Vision, 201-206.

Geisler W.S. & Hamilton D. (1986) A sampling theory analysis of spatial vision. Journal Of Optical Society of America A 3, 62-70.
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Geisler W.S. & Davila K.D. (1985) Ideal discriminators in spatial vision: Two-point stimuli. Journal Of Optical Society of America A 2, 1483-1497.
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Geisler W.S. (1984) The physical limits of acuity and hyperacuity. Journal Of Optical Society of America A 1, 775-782.
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Geisler, W. (1983) A computational view of vision. Contemporary Psychology 28, 581-582.

Geisler W.S.  (1983) Mechanisms of visual sensitivity: Backgrounds and early dark adaptation.. Vision Research 23, 1423-1432.
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Geisler W.S. (1981) Effects of bleaching and backgrounds on the flash response of the cone system. Journal of Physiology, London 312, 413-434.
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Geisler, W. (1981) Mechanisms of dark adaptation. In: W. Makous (Ed.), Relating Physiology to Psychophysics: Current Problems and Approaches. Center for Visual Science, University of Rochester.

Geisler, W. (1980) Increment-threshold and detection latency in the human rod and cone systems. Vision Research 20, 981-994.
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Geisler, W. & Edgell, S. (1980) A set-theoretical random utility model of choice behavior. Journal of Mathematical Psychology 21, 265-278.

Geisler W.S. (1980) Comments on the testing of two prominent dark-adaptation hypotheses. Vision Research 20, 807-811.
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Geisler W.S. (1979) Evidence for the equivalent-background hypothesis in cones. Vision Research 18, 799-805.
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Geisler W. S. (1979) Initial-image and afterimage discrimination in the human rod and cone systems. Journal of Physiology, London 294, 165-179.
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Geisler, W. (1978) Effects of photopigment depletion on brightness and threshold.. Vision Research 18, 269-278.
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Geisler W.S. (1979) Adaptation, afterimages and cone saturation. Vision Research 18, 279-289.
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Geisler, W. & Shiffrin, R.M. (1973) Visual recognition in a theory of information processing. In: R.L. Solso (Ed.), Contemporary Isues in Cognitive Psychology. The Loyola Symposium. Winston, Washington, D.C.

Geisler WS.., Edgell S. & Zinnes J. (1973) A note on a paper by Rumelhart and Greeno. Journal of Mathematical Psychology 10, 87-90.

Courses

Semester         Course     Unique No.       Title

2014 Fall      PSY 394U         43985       Adv Tpcs in Perceptual Sys
2014 Spr      PSY 323           43990       Perception
2014 Spr      PSY 380E         44175       Vision Systems

2013 Fall      PSY 394U         44020       Adv Topics in Perceptual Sys

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