Papers presented at the Annual Meeting of the Applied Vision Association 'Psychology in Vision', UMIST, Manchester, UK, 6--8 April 1992.

The article presents abstracts of papers presented at the Annual Meeting of the Applied Vision Association, Psychology in Vision, in Great Britain, from 6- 8 April, 1992. The article "Using Group and Phase Velocity to Explain Coherent and Transparent Motion." by K. Langley and D. J. Fleet presents a model to explain observations using group and phase velocity. The model is based on the motion constraint equation but applied to a bandpass signal formed by the operation of convolving an image function with quadrature filter pairs that are orientationally and spatial frequency band-Iimited. The article "Sensitivity to Shearing Motion in the Human Visual System," by K. A. Roberts and M. J. Wright presents three experiments which examine human sensitivity to shearing motion.