Refereed Journal Articles

Spehar, B & Owens, C. (2012) When do luminance changes capture attention? Attention, Perception, & Psychophysics, 74,4, 674-690.

Otsuka, Y., Hill, H., Kanazawa, S., Yamaguchi, M., & Spehar, B. (2012) Perception of Mooney faces by young infants: The role of local feature visibility, contrast polarity and motion. Journal of Experimental Child Psychology, 111, 164-179

Taylor RP, Spehar B, Van Donkelaar P and Hagerhall CM (2011) Perceptual and physiological responses to Jackson Pollock’s fractals. Frontiers in Human Neuroscience Volume 5: Article 60. doi: 10.3389/fnhum.2011.00060

Schira MM and Spehar B (2011) Differential effect of contrast polarity reversals in closed squares and open L-junctions. Frontiers in Psychology: Perception Science Volume 2: Article 47. doi: 10.3389/fpsyg.2011.00047

Spehar, B., & Kolesaric, V. (2010) The effects of stimulus context on components of simple reaction time. Review of Psychology, 17, 1, 59-67.

Schira MM, Tyler CW, Spehar B, Breakspear M. (2010). Modelling the Humal Foveal Confluence. Conformal Mapping, Magnification and Biological Constrains. PLoS Comp. Biol. Jan 29, 6(1).

Schira, M., Tyler, C., Breakspear, M., & Spehar, B. (2009) The foveal confluence in human visual cortex. Journal of Neuroscience, Volume: 29 Issue: 28 Pages: 9050-9058.

Cass, J., Clifford, C., & Alais, D. & Spehar, B. (2009) Temporal structure of chromatic channels revealed through masking. Journal of Vision, Volume: 9 (5): Art. No: 17.

Cass J., Alais D., Spehar B., Bex P.J. (2009). Temporal whitening: Transient noise perceptually equalizes the 1/f temporal amplitude spectrum. Journal of Vision, 9 (10): Art. No. 12.

McDonald, J.S., Seymour, K.J., Schira, M.M., Spehar, B. & Clifford, C.W.G. (2009) “Orientation-specific contextual modulation of the fMRI BOLD response to luminance and chromatic gratings in human visual cortex”, Vision Research, 49, 11, 1397-405

Otsuka, Y., Yamazaki, Y., Konishi, Y., Kanazawa, S., Yamaguchi, M., & Spehar, B. (2008) The perception of illusory transparent surfaces in infancy: Early emergence of sensitivity to static pictorial cues. Journal of Vision, 8(16):6, 1-12, http://journalofvision.org/8/16/6/, doi:10.1167/8.16.6.

Crraney, J., Morris, S., Spehar, B., & Scoufis, M. (2008) Helping first year students think like psychologists: supporting information literacy and teamwork skill development. Psychology Learning and Teaching, 7, 28-36.

Owens, C. & Spehar, B. (2008). Unique temporal change does not account for attentional capture by sudden onsets. Visual Cognition, 16, 307-324.

Huon, G., Spehar, B., Adams, P. & Rifkin, W. (2007). Resource use and academic performance among first year psychology students. Higher Education, 53, 1-27.

Cass, J. R., Spehar, B. (2005). Dynamics of collinear facilitation are consistent with long--range horizontal striate transmission. Vision Research, 45, 2728-2739.

Cass, J.R. & Spehar, B. (2005) Dynamics of cross- and iso-surround facilitation suggest distinct mechanisms. Vision Research, 45, 24, 3060-3073

Hayward, W.G., Wong, A.C.N., & Spehar, B. (2005) When are viewpoint costs greater for silhouettes than shaded images? Psychonomic Bulletin and Review,12, 321-327.

Taylor, R.P., Spehar, B., Wise, J.A., Clifford, C.W.G., Newell, B.R., Hagerhall, C.M., Purcell, T. & Martin, T.P. (2005) “Perceptual and physiological responses to the visual complexity of Pollock’s dripped fractal patterns”, Non-linear Dynamics, Psychology & Life Sciences, 9, 89-114.

Clifford, C.W.G., Spehar, B., & Pearson, J. (2004) Motion transparency promotes synchronous perceptual binding. Vision Research, 44, 3073-3080

Clifford, C.W.G., Pearson, J., Forte, J.D. & Spehar, B. (2003). "Colour and luminance selectivity of spatial and temporal interactions in orientation perception", Vision Research, 43, 2885-2893.

Spehar, B. & Clifford, C.W.G. (2003). "When does illusory contour formation depend on contrast polarity?" Vision Research, 43, 1915-1919.

Clifford, C.W.G., Spehar, B., Solomon, S.G., Martin, P.R. & Zaidi, Q. (2003). "Interactions between colour and luminance in the perception of orientation", Journal of Vision, 3, 106-115

Spehar B., Clifford CWG Newell B & Taylor RP (2003). "Universal Aesthetic of Fractals" Computers & graphics,27, 813-820.

Spehar B. & Gillam B. (2002) Modal completion in the Poggendorff illusion: support for the depth-processing theory. Psychological Science 13 306-12

Spehar, B., Clifford, C. W. & Tiziano A. (2002). Induction in variants of White's effect: Common or separate mechanisms? Perception, 31, 189-196

Spehar, B., Clifford, C. W. G. (2002). Painting with light by Rob and Nick Carter: Dramatic failures of colour constancy in articulated scenes. Perception, 31, 197-200.

Spehar, B. (2002). The role of contrast polarity in perceptual closure. Vision Research, 42, 343-350.

Spehar, B. (2000). Degraded illusory contour formation with non-uniform inducers in Kanizsa configurations: the role of contrast polarity. Vision Research, 40, 2653-2659.

Clifford, C.W.G., Wenderoth, P., Spehar, B. (2000) A functional angle on some after-effects in cortical vision. Proceedings of the Royal Society of London, B. 267,1705-1710.

Gilchrist A., Kossyfidis C., Bonato F., Agostini T., Cataliotti J., Li X., Spehar B., Annan V. & Economou E. (1999). An anchoring theory of lightness perception. Psychological Review, 106, 795-834.

Zaidi, Q., Spehar, B., and DeBonet, J. (1998) Adaptation to textured chromatic fields. Journal of the Optical Society of America, A15,22-32.

Spehar, B., and Zaidi, Q. (1997) New configurational effects on perceived contrast and brightness: Second-order White’s effect. Perception, 26,409-418.

Zaidi, Q., and Spehar, B. (1997) Induced effects of backgrounds and foregrounds in pictures of three-dimensional configurations: the role of T junctions. Perception, 26, 395-408.

Spehar, B. and Zaidi, Q. (1997) Surround effects on the shape of the temporal sensitivity function. Journal of the Optical Society of America, 14, 2517-2525.

Zaidi, Q., Spehar, B., and DeBonet, J.S. (1997) Colour constancy in variegated scenes: the role of low-level mechanisms in discounting illumination changes. Journal of the Optical Society of America, A14, 2608-2621.

Spehar, B., Gilchrist, A.L., and Arend, L.E. (1997) Qualitative boundaries critical in square-wave brightness illusions: A reply to Kingdom et al. (1996). Vision Research, 37,1044-1048.

Spehar, B., DeBonet, J., and Zaidi, Q. (1996) Brightness Induction from Uniform and Complex Surrounds: A General Model, Vision Research, 36,1893-1906.

Greenstein, V., Zaidi, Q., Hood, D., DeBonet, J.S., Spehar, B., Cideciyan, A. and Jacobson, S. (1996) Enhanced S Cone Syndrome: receptoral and post-receptoral analyses. Vision Research, 36, 3711-3722. Reprinted in OSA Trends in Optics and Photonics Series Vol. 11, Noninvasive Assessment of the Visual System, Yager, D. (ed.), (Optical Society of America, Washington, DC 1997).

Spehar, B., Gilchrist, A.L., and Arend, L.E. (1995) The critical role of relative luminance relations in White's effect and grating induction. Vision Research, 35,2603-2614.

Spehar, B., Arend, L.A., and Gilchrist, A.L. (1995) Contrast-contrast: interactions between spatial and luminance factors. Review of Psychology, 2, 3-12.

Arend, L.E., and Spehar, B. (1993) Lightness, Brightness and Brightness Contrast: Illuminance Variation. Perception and Psychophysics, 54, 446-456.

Arend, L.E., and Spehar, B. (1993) Lightness, Brightness and Brightness Contrast: Reflectance Variation. Perception and Psychophysics, 54, 457-468.

Book Chapters

Van Tonder, G & Spehar, B. (In Press) The Aesthetic Appeal of Visual Qualities. In Wiley-Blackwell Handbook of Experimental Phenomenology. Visual Perception of Shape, Space and Appearances (ed. L. Albertazzi), Willey & Blackwell.

Spehar, B. & Clifford, C.W.G. (In Press) The Wedding Cake Illusion: Interaction of Geometric and Photometric Factors in Induced Contrast and Assimilation. In Shapiro, A., & Todorovic, D. (Eds.) The Oxford Compendium of Visual Illusions. Oxford University Press

Taylor RP, Spehar B, Clifford CWG, & Newell, B. (2008) The visual complexity of Pollock's dripped fractals. In Unifying Themes in Complex Systems IV, Book Series: New England Complex Systems Institute Series on Complexity, 175-182

Taylor, R.P, Newell, B., Spehar, B. & Clifford, C.W.G. (2005). “Fractals: a resonance between Art and Nature”, In The Visual Mind, Part 2 (ed. M. Emmer), Cambridge, MA: MIT Press

Taylor, R, Newell, B., Spehar, B. & Clifford, C. (2005) Fractals: A resonance between art and nature. In Emmer, M. (Ed.) Mathemathcis and Culture II, Springer-Verlag, Berlin