Professor

Office:  Room 351 Life Science Building
Phone: (502) 852-5955
Fax:     (502) 852-8904
Email:  essock@louisville.edu

Lab location: 307 Life Sciences Building
Lab phone: 852-7710
Lab website: Visual Perception Lab

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Education

B.S.         University of Iowa        1976

Ph.D.        Brown University         1981

Post-doc  University of California  1982

Research Interests  --  Visual Perception

• Visual art and aesthetics
• Perception of natural scenes
• Encoding of natural scenes/ Cortical gain-control
• Biases in perception of oriented stimuli (lines, edges, noise) 
• Clinical vision (e.g., Prediction of Glaucoma, Cataracts and vision) 
• Applied (Human Factors) vision

Recent Publications

Haun, AH, Kim, YJ, and Essock, EA (2009)  An anisotropy of oriention-tuned suppression that matches the anisotropy of typical natural scenes.  Journal of Vision, in press.

Hansen BC, Haun, AM and Essock, EA.  (2008) The “Horizontal Effect”:  A perceptual anisotropy in visual processing of naturalistic broadband stimuli.  In Visual Cortex:  New Research,  T.A. Portocello and R.B. Velloti (Eds.) Nova Science Publishers, New York.

 Zheng, Y and Essock, EA  (2008)  A local-coloring method for night-vision colorization utilizing image analysis and fusion.  Information Fusion, 9(2), 186-199.

Essock, EA and Hansen, BC, and Haun, AM (2007)  Perceptual bands in orientation and spatial frequency:  A cortical analogue to Mach bands.  Perception, 36(5), 639-649.

Essock, EA, Gunvant, P, Zheng, Y, Garway-Heath, DF, and Kotecha, A.  (2007) Predicting visual field loss in ocular hypertensive patients using wavelet-fourier analysis of GDx scanning laser polarimetry.  Optometry and Vision Science, 84(5), 380-387.

Gunvant, PG, Zheng, Y, Essock, EA, Parikh, RS, Prabakaran, SP, Ganesh, JG, Shekar, GC, Thomas, R.  (2007) Application of shape-based analysis methods to OCT retinal nerve fiber layer.  Journal of Glaucoma 16(6), 543-548.

Courses Often Taught

432 Vision and Art

631 Sensation and Perception

633 Visual Processes

331 Perception