Department of Psychology

James Todd

My research is primarily concerned with the visual perception of 3-dimensional form from various types of optical information, such as shading, texture, motion, and binocular disparity. The specific goals of this research are twofold: First, to identify the formal characteristics of how an object's 3-dimensional form is perceptually represented; and second, to discover how these representations are computed from the measurable properties of visual images. In addressing these issues we attempt to develop specific computational models of how image structure could be perceptually analyzed, and to empirically test the validity of those models for actual human observers.

Selected Publications

Bingham, G. P., Crowell, J. A. & Todd, J. T. (2004) Distortions of distance and shape are not produced by a single continuous transformation of reach space. Perception & Psychophysics, 66(1), 152-169.

Koenderink, J. J., van Doorn, A. J. & Kappers, A. M. L., Todd, J. T. (2004) Pointing out of the picture. Perception, 33, 513-169.

Liu, B. & Todd, J. T. (2004) Perceptual Biases in the Interpretation of 3D Shape from Shading. Vision Research, 44, 2135-2145.

Norman, J. F., Todd, J. T. & Orban, G. A. (2004) Perception of Three-Dimensional Shape From Specular Highlights, Deformations of Shading, and Other Types of Visual Information. Psychological Science, 15, 565-570.

Peuskens, H., Claeys, K. G., Todd, J. T., Norman, J. F., Van Hecke, P. & Orban, G. A. (2004) Attention to 3-D Shape, 3-D Motion, and Texture in 3-D Structure from Motion Displays. Journal of Cognitive Neuroscience, 16:4, 665-682.

Todd, J. T. (2004) The visual perception of 3D shape. TRENDS in Cognitive Science, 8:3, 115-121.

Todd, J. T., Norman, J. F., & Mingolla, E. (2004) Lightness Constancy in the Presence of Specular Highlights. Psychological Science, 15:1, 33-39.

Todd, J. T., Oomes, A. H., Koenderink, J. J., Kappers, A. M. L. (2004) The Perception of Doubly Curved Surfaces From Anisotropic Textures. Psychological Science, 15:1, 40-46.

Department of Psychology

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James Todd

Selected Publications