Eye centring in selfies posted on Instagram. PLoS ONE 14(7): e0218663, 2019 (with N Bruno and M Bertamini). PDF (also see interview here and articles)

Depth structure from asymmetric shading supports face discrimination. PLoS ONE 8(2): e55865, 2013 (with Chen C-C, Chen C-M). PDF

Symmetry: modeling the effects of masking noise, axial cueing and salience. PLoS One 5(4):e9840, 2010 (with C.C. Chen). PDF

Face configuration processing in the human brain: the role of symmetry. Cereb Cortex, 7:1423-32, 2006 (with CC Chen and C Kao). PDF

Symmetry activates extrastriate visual cortex in human and nonhuman primates. Proc Natl Acad Sci U S A. 102:3159-63, 2005 (with Y Sasaki, W Vanduffel, T Knutsen, RH Tootell). PDF

Predominantly extra-retinotopic cortical response to pattern symmetry. NeuroImage. 24:306-14, 2005 (with HA Baseler, LL Kontsevich, LT Likova, AR Wade, BA Wandell). PDF

Temporal dynamics of the human response to symmetry. J Vision 2:132-9, 2002. (with AM Norcia, TR Candy, MW Pettet, VY Vildavski). PDF

The symmetry magnification function varies with detection task. J Vision 1:137-44, 2001. PDF

The human expression of symmetry: Art and neuroscience. In Seoul ICUS Symmetry Symposium, A Bogdan (Ed.), 2000. PDF

Human symmetry detection exhibits reverse eccentricity scaling. Visual Neurosci. 16:919-22, 1999. PDF

Eye placement principles in portraits and figure studies over the past two millennia. Human Vision and Electronic Imaging III; BE Rogowitz, TN Pappas, Eds. Proc. SPIE 3299, 431-438, 1998. PDF

Painters centre one eye in portraits. Nature 392, 877-878, 1998. PDF

Symmetries, structure and schemata in perceptual coding. In, Computational and Biological Mechanisms of Visual Coding. M Jenkin, L Harris (Eds), Cambridge University Press, Cambridge, U.K., 1997. PDF

Mirror symmetry detection: predominance of second-order pattern processing throughout the visual field. In, Human Symmetry Perception and its Computational Analysis, Tyler, CW (Ed), VSP BV, Zeist, The Netherlands, 157-172, 1996, (with L. Hardage). PDF

Multiple mechanisms for the detection of mirror symmetry. Spatial Vision 9, 79-100, 1995 (with L Hardage, RT Miller). PDF

Empirical aspects of symmetry perception. Spatial Vision 9, 1-11, 1995. PDF

Theoretical issues in symmetry perception. Spatial Vision 8, 383-391, 1994. PDF