Research Interests
I study human visual perception, with emphasis on binocular vision, motion perception and the role of temporal structure in perceptual organization. Using psychophysical techniques my lab studies how people make judgements about the 3D structure and layout of objects, with an eye toward developing neural models to account for those abilities. The psychophysical work uses computer generated animation sequences viewed stereoscopically to simulate 3D objects undergoing transformations associated with motion, including biological motion. The theoretical work relies heavily on extant physiological and neurological data. Over the years, we have developed fruitful localization strategies, including ones that utilize binocular rivalry as a neural "reference" for localizing other sites of action. The inferential strength of this so-called "psychoanatomical" technique will continue to grow as more is learned about the actual neural concomitants of visual information processing. To supplement this strategy, we also use brain imaging (fMRI) and transtranscranial magnetic stimulation to study neural concomitants of binocular rivalry (including traveling waves of dominance) and perception of biological motion. In recent years, I have also studied visual imagery, visual working memory, synaesthesia, non-visual influences on vision and the role of knowledge in visual perception. The laboratory constitutes part of the Vanderbilt Vision Research Center, a multidisciplinary group of vision scientists with graduate and postdoctoral training programs.
Papers indicative of my researech interests

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Wilson, H.R., Blake, R. & Lee, S.H. (2001) Dynamics of traveling waves in visual perception. Nature, 412, 907-910. (see also this news piece)
Blake, R. & Logothetis, N. (2002) Visual competition. Nature Reviews Neuroscience, 3, 1 - 11.
Grossman, E. & Blake, R. (2002) Brain areas active during visual perception of biological motion. Neuron, 35, 1167-1176
Blake, R., Turner, L.M., Smoski, M.J., Pozdol, S.L. & Stone, W.L. (2003) Visual recognition of biological motion is impaired in children with autism. Psychological Science, 14, 151-157.
Tadin, D., Lappin, J.S., Gilroy, L & Blake, R. (2003) Perceptual consquences of centre-surround antagonism in visual motion processing. Nature, 424, 313-315.
Blake, R., Sobel, K. & James, T. (2004) Neural synergy between kinetic vision and touch, Psychological Science, 15, 397-402.
Blake, R. & Lee, S-H. (2005) The role of temporal structure in human vision. Behavioral and Cognitive Neuroscience Reviews, 4, 21-42,
Guttman, S., Gilroy, L. & Blake (2005) Hearing what the eyes see: auditory encoding of visual temporal structure. Psychological Science, 16, 228-235.
Kim, C.Y. & Blake, R. (2005) Psychophysical strategies for rendering the normally visible "invisible”, Trends in Cognitive Sciences, 9, 381-388.
Blake, R., Tadin, D., Sobel, K., Chong, S.C. & Raissian, R. (2006) Strength of early visual adaptation depends on visual awareness. Proceedings of the National Academy of Sciences, USA. 103, 4783-4788.
Blake, R. & Shiffrar, M. (2007) Perception of human motion. Annual Review of Psychology, 58, 47-73.
Lee, S-H., Blake, R. & Heeger, D. (2007) Hierarchy of cortical responses underlying binocular rivalry. Nature Neuroscience, 10, 1048-1054.
Kang, M.S., Heeger, D. & Blake, R. (2009) Periodic perturbations producing phase-locked fluctuations in visual perception. Journal of Vision, 9, 1 -12. http://journalofvision.org/9/2/8/
Jackson, S. & Blake, R. (2010) Neural integration of information specifying human structure from form, motion and depth. Journal of Neuroscience, 30, 838-848.
Alais, D., Cass, J., O’Shea, R.P. & Blake, R. (2010) Visual sensitivity underlying changes in visual consciousness. Current Biology, 20, 1362-1367.
Kang, M.S., Blake, R. & Woodman, G. (2011) Semantic analysis does not occur in the absence of awareness induced by interocular suppression. Journal of Neuroscience, 31, 13535-13545.
Brascamp, J. & Blake, R. (2012) Inattention abolishes binocular rivalry: perceptual evidence. Psychological Science, 23, 1159-1167.
Brascamp, J., Sohn, H., Lee, S.H. & Blake, R. (2013) A monocular contribution to stimulus rivalry. Proceedings of the National Academy of Sciences, Early Online.
Randolph Blake

512 Wilson Hall • 111 21st. Avenue South • Nashville, TN 37203
Email: randolph.blake@vanderbilt.edu • Phone: (615) 343-7010 • Fax: (615) 343-8449

Vanderbilt Vision Research CenterDepartment of PsychologyVanderbilt University