Carol Cicerone (949)-824-8496 cciceron@uci.edu

My work is focused on visual perception and its physiological bases, with emphasis on the mechanisms of human color vision. The general aim is to link human visual perception to its biological bases-to the neurons and the neural networks of the visual pathway. Some examples of the recent work in my laboratory include the following: Experimental results have elucidated the way in which signals from the different cone photoreceptors contribute to the opponent color pathways to provide normal and deficient human color vision. Recent psychophysical experiments provide estimates of the relative numbers and the spatial arrangements of different cone types in the retinae of color normal trichromats and color-deficient individuals. These estimates are being used to build models of human color vision which are explicitly linked to the composition and distribution of cones in the retina. The role of color in defining the visual scene is being explored with a new phenomenon in which the perception of motion triggers a spread of color into achromatic regions defined by motion. These studies explore interactions between the processing of motion and color as well as the functional significance of color as a mechanism for breaking camouflage.

Ph.D. University of Michigan, 1974 (Psychology). Member, NSF Panel on Sensory Physiology and Perception, 1983-1986; Member (1991-1995) and Chair (1993-1995), Visual Sciences B Study Section of the National Institutes of Health; Fellow, Optical Society of America.

Selected publications

Larimer, J., Krantz, D. H., and Cicerone, C. M. (1975) Opponent-process additivity II: Yellow/blue equilibria and nonlinear models. Vision Research 15, 723-731.

Cicerone, C. M., Krantz, D. H., and Larimer, J. (1975) Opponent-process additivity III: Effects of moderate chromatic adaptation. Vision Research 15, 1125-1135.

Cicerone, C. M. (1976) Cones survive rods in the light-damaged eye of the albino rat. Science 194, 1183-1185.

Schmidt, J. T., Cicerone, C. M., and Easter, S. S., Jr. (1978) Expansion of the half-retinal projection in goldfish: An electrophysiological and anatomical study. Journal of Comparative Neurology 177, 257-278.

Cicerone, C. M. and Green, D. G. (1978) Relative modulation sensitivity of the red and green color mechanisms. Vision Research 18, 1593-1598.

Cicerone, C. M., Green, D. G., and Fisher, L. J. (1979) Cone inputs to ganglion cells in hereditary retinal dystrophy. Science 203, 1113-1115.

Cicerone, C. M. and Green, D. G. (1980) Light adaptation within the receptive field centre of rat retinal ganglion cells. Journal of Physiology 301, 517-534.

Cicerone, C. M. and Green, D. G. (1980) Dark adaptation within the receptive field centre of rat retinal ganglion cells. Journal of Physiology 301, 535-548.

Cicerone, C. M. and Green, D. G. (1981) Signal transmission from rods to ganglion cells in rat retina after bleaching a portion of the receptive field. Journal of Physiology 314, 213-224.

Trejo, L. J. and Cicerone, C. M. (1982) Retinal sensitivity measured by the pupillary light reflex in RCS and albino rats. Vision Research 22, 1163-1172.

Trejo, L. J. and Cicerone, C. M. (1984) Cells in the pretectal olivary nucleus are in the pathway for the direct light reflex of the pupil in the rat. Brain Research 300, 49-62.

Cicerone, C. M., Volbrecht, V. J., Donnelly, S. K., and Werner, J. S. (1986) Perception of blackness. Journal of the Optical Society of America A 3, 433- 436.

Trejo, L. J. and Cicerone, C. M. (1987) Changes in visual sensitivity with age in rats with hereditary retinal degeneration. Vision Research 27, 915-918.

Cicerone, C. M., Nagy, A. L., and Nerger, J. L. (1987) Equilibrium hue judgements of dichromats. Vision Research 27, 983-991.

Cicerone, C. M. (1987) Constraints placed on color vision models by the relative numbers of different cone classes in human fovea centralis. Farbe 34, 59-66.

Cicerone, C. M. and Nerger, J. L. (1989) The relative numbers of long- wavelength-sensitive to middle-wavelength-sensitive cones in the human fovea centralis. Vision Research 29, 115-128.

Cicerone, C. M. and Nerger, J. L. (1989) The density of cones in the fovea centralis of the human dichromat. Vision Research 29, 1587-1595.

Volbrecht, V. J., Werner, J. S., and Cicerone, C. M. (1990) Additivity of spatially-induced blackness. Journal of the Optical Society of America A 7, 106-112 .

Cicerone, C. M. and Hayhoe, M. M. (1990) The size of the pool for bleaching adaptation in human rod vision. Vision Research 30, 693-697.

Cicerone, C. M., Hayhoe, M. M., and MacLeod, D. I. A. (1990) The spread of adaptation in human foveal and parafoveal cone vision. Vision Research 30, 1603-1615.

Cicerone, C. M. (1990) Color appearance and the cone mosaic in trichromacy and dichromacy. Proceedings of the Symposium of the International Research Group on Color Vision Deficiencies, Tokyo, Japan 1990, pp. 1-12, Amsterdam: Kugler & Ghedini, 1990.

Nerger, J. L. and Cicerone, C. M. (1992) The ratio of L cones to M cones in the human parafoveal retina. Vision Research 32, 879-888.

Cicerone, C. M., Gowdy, P. D., Hoffman, D. D., and Kim, J. S. (1995) The perception of color from motion. Perception and Psychophysics 57. 761-777.

Miyahara, E. and Cicerone, C.M. (1997) The perception of color from motion: Separate contributions of chromacity and luminance. Perception (in press).

Cicerone, C.M.and Hoffman, D.D. (1997) Color from motion: Dichoptic activation and a possible role in breaking camouflage. Perception (In press).