Recent Publications

Simpson, W.A., & Manahilov, V. (2006). The two-pulse experiment and cross-correlation. Vision Research, 46, 1178--1179. pdf

Andrews, T. J., Purves, D., Simpson, W. A., & VanRullen, R. (2005). The wheels keep turning: Reply to Holcombe et al. Trends in Cognitive Sciences, 9, 560-561. pdf

Manahilov V., Calvert J., and Simpson W.A. (2005). Why is second-order vision less efficient than first-order vision? Vision Research, 45, 2759--2772. pdf

Calvert, J., Manahilov, V., Simpson, W. A., & Parker, D. M. (2005). Human cortical responses to contrast modulations of visual noise. Vision Research, 45, 2218--2230. pdf

Simpson, W. A., & McFadden, S. M. (2005). Spatial frequency channels derived from individual differences. Vision Research, 45, 2723--2727. pdf

Simpson, W. A., Shahani, U., & Manahilov, V. (2005). Illusory percepts of moving patterns due to discrete temporal sampling, Neuroscience Letters, 375, 23-27. pdf

Manahilov, V., Findlay, K., & Simpson, W. A. (2004). Factors limiting suprathreshold vision measured by a flash-sound simultaneity paradigm. Vision Research, 44, 2577--2585. pdf

Manahilov, V., Calvert, J., & Simpson, W. A. (2003). Temporal properties of the visual responses to luminance and contrast modulated noise. Vision Research, 43, 1855--1867. pdf

Simpson, W. A., Falkenberg, H. K., & Manahilov, V. (2003). Sampling efficiency and internal noise for motion detection, discrimination, and summation. Vision Research, 43, 2125--2132. pdf

Simpson, W. A., Findlay, K., & Manahilov, V. (2003). Efficiency and internal noise for detection of suprathreshold patterns measured using simple reaction time. Vision Research, 43, 1103--1109. pdf

Braun, W. J., Rousson, V., Simpson, W. A., & Prokop, J. (2003). Parametric modelling of reaction time experiment data. Biometrics, 59, 661--669. pdf

Manahilov, V., & Simpson, W. A. (2001). Energy model for contrast detection: Spatial frequency and orientation selectivity in grating summation. Vision Research, 41, 1547--1560. pdf

Simpson, W. A., & Manahilov, V. (2001). Matched filtering in motion detection and discrimination. Proceedings of the Royal Society of London B, 268, 703--709. pdf

Manahilov, V., Simpson, W. A., & McCulloch, D. L. (2001). Spatial summation of peripheral Gabor patches. Journal of the Optical Society of America A, 18, 273--282. pdf

Simpson, W. A., Braun, J., Bargen, C., & Newman, A. (2000). Identification of the eye-brain-hand system with point processes: A new approach to simple reaction time. Journal of Experimental Psychology: Human Perception and Performance, 26, 1675--1690. pdf

Simpson, W.A., Manahilov, V., & Mair, M. (1999). Is motion processing unitary? Journal of the Optical Society of America A, 16, 2836--2844. pdf

Simpson, W.A., & Newman, A. (1998). Motion detection and directional tuning. Vision Research, 38, 1593--1604. pdf

Simpson, W.A., Newman, A., & Aasland, W. (1997). Equivalent background speed in recovery from motion adaptation. Journal of the Optical Society of America A, 14, 13--22. pdf

Simpson, W.A., & Finsten, B. (1995). Pedestal effect in visual motion discrimination. Journal of the Optical Society of America A, 12, 2555--2563. pdf

Posters

Classification objects

Two eyes: Twice as good as one?

Detecting simple patterns with night vision goggles