||University of Rochester, 1996
Vision Sciences Society
Faculty for Undergraduate Neuroscience
New York Academy of Sciences
We use psychophysical techniques, image processing and computer simulations, and current knowledge of visual neurophysiology to try to understand how the visual system processes visual information to result in your perception of the environment. One focus of research is the perception of 3-dimensional shape. Input to the visual system is inherently 2-dimensional, and yet we are able to effortlessly perceive the 3-dimensionality of objects. We have particular interest in understanding how the visual system uses changes in surface texture in the retinal image to accomplish this feat. More recently, we have begun considering how factors such as emotional state and aging affect basic aspects of visual perception.
Zaidi, Q, Li, A, Wong, C, Cohen, E, and Meng, X. Hardwired and plastic mechanisms in 3-D shape perception, in Shape Perception in Human and Computer Vision: An interdisciplinary Perspective, edited by Dickinson and Pizlo, Springer (In Press).
Tam, D.M., Shin, J., & Li, A. (2013) Dominance of orientation over frequency in the perception of 3D slant and shape, PLoS ONE, 8(5):e64958.
Fowler, M. & Li, A. (2013) Effects of texture component orientation on orientation flow visibility for 3D shape perception, PLoS ONE, 8(1):e53556.
Li A, Zaidi Q, (2009) Release from Cross-Orientation Suppression Facilitates 3D Shape Perception, PLoS ONE, 4 (12): e8333.
Filangieri, C. & Li, A. (2009) Three-dimensional shape from second-order orientation flows, Vision Research, 49 (11): 1465-1471.
Li, A., Tzen, B., Yadgarova, A. & Zaidi, Q. (2008) Neural basis of 3-D shape aftereffects, Vision Resesarch, 48, 244-252.
Li, A. (2008) Visuo-motor plasticity experienced using prism adaptation in a classroom setting, Journal of Undergraduate Neuroscience Education, 7(1):A13-A18.
Zaidi, Q. & Li, A. (2006) Three-dimensional shape from chromatic orientation flows, Visual Neuroscience, 23, 323-330.
Li, A. & Zaidi, Q. (2004) Three-dimensional shape from non-homogeneous textures: carved and stretched surfaces, Journal of Vision, 4, 860-878.