Recent Publications

Hammett, S.T., Champion, R.A., Morland, A.B. & Thompson, P.G. (2007) Perceptual distortions of speed at low luminance:  Evidence inconsistent with a Bayesian account of speed encoding, Vision Research, 47, 564-568.

Champion, R.A.,  & Hammett, S.T. & Thompson, P. G. (2007) Perceived direction of plaid motion is not predicted by component speeds, Vision Research, 47, 375-383.

Thompson P.G,  Brooks K. & Hammett S.T. (2006) Reducing stimulus contrast: speed can go up as well as down. Vision Research,  46, 782-786.

Hammett, S.T, Champion,  R.A.C., Morland, A.B. & Thompson, P.G. (2005) A ratio model of perceived speed in human vision. Proceedings of the Royal Society B,  272, 2351-2356.

Hammett, S.T., Georgeson, M.A. , Bedingham, S.  & Barbieri-Hesse (2003) Motion sharpening and contrast: Gain control precedes compressive non-linearity. Vision Research, 43 (10): 1187-1199.

Hammett, S. T., Georgeson, M.A. & Barbieri-Hesse, G.S. (2003) Motion, flash and flicker: A unified spatiotemporal model of perceived edge sharpening. Perception,  32 (10): 1221-1232 2003.

Georgeson, M.A. & Hammett, S.T. (2002) Seeing blur: “Motion sharpening” without motion.  Proceedings of the Royal Society B, 269, 1429-1434.

Hammett, S.T., Thompson, P.G. & Bedingham, S.(2000). The dynamics of velocity adaptation in human vision, Current Biology, 10, 1123-1126.

Full list of publications