Recent Publications

Hammett, S.T., Champion, R.A., Morland, A.B. & Thompson, P.G. (2006) Perceptual distortions of speed at low luminance:  Evidence inconsistent with a Bayesian account of speed encoding, Vision Research, in press.

Champion, R.A.,  & Hammett, S.T. & Thompson, P. G. (2006) Perceived direction of plaid motion is not predicted by component speeds, Vision Research, in press.

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
Dept of Psychology

Royal Holloway
University of London

Tel +44 1784 443702 (office)
Tel +44 1784 443701 (lab)
Fax +44 1784 443702 http://www.pc.rhul.ac.uk/index.htmlshapeimage_2_link_0
Vision Lab Steve Hammett
Current collaborations

Peter Thompson                      
Rebecca Champion       
Tony Morland  
Jean Lorenceau http://www-users.york.ac.uk/~pt2/http://www.psychology.soton.ac.uk/people/ShowProfile.php?username=becky&source=coghttp://www-users.york.ac.uk/~arm501/shapeimage_5_link_0shapeimage_5_link_1shapeimage_5_link_2
Research Projects

Perceived speed in human vision

Motion sharpening and motion blur

Automation of cervical cytology screening

Retinotopic mapping in