Research Interests

The major theme of my research is the investigation of perceptual and sensory dynamics. This involves psychophysical investigation into how visual processes evolve over time as well as the perceptual mechanisms of visual and auditory temporal resolution. Other work is concerned with understanding the perceptual effects of context on various visual properties. This work includes examination of centre-surround interactions, visual crowding and contour integration and segmentation.

Current and previous appointments

Publications

Manuscripts

1. Cass, J., Stuit, S., Bex, P. J. & Alais, D. (2009). Orientation channels revisited: bandwidths are invariant over spatio-temporal frequency when isotropic masking components are removed. Journal of Vision, 9 (12), 1-14.
2. Dakin, S. C., Watt, R., Cass, J. & Bex, P. J. (2009). Dissociable effects of attention and crowding on orientation averaging. Journal of Vision, 9 (11), 1-16.
3. Stuit, S. M., Cass, J., Paffen, C. L. E., & Alais, D. (2009). Orientation-tuned suppression in binocular rivalry reveals general and specific components of rivalry suppression. Journal of Vision, 9 (11), 1-15.
4. Cass, J., Alais, D., Spehar B. & Bex, P. J. (2009). Temporal whitening: transient noise equalizes the 1/f amplitude spectrum. Journal of Vision, 9 (10), 1-19.
5. Cass, J., Clifford, C. W. G., Alais, D. & Spehar B. (2009). Temporal structure of chromatic channels revealed through masking, Journal of Vision, 9 (5), 1-15.
6. Cass, J. & Alais, D. (2006). Evidence for two interacting temporal channels in visual processing. Vision Research, 46, 2859-2868.
7. Cass, J. & Alais, D. (2006). The mechanisms of collinear integration. Journal of Vision, 6, 915-922.
8. Cass, J. & Spehar, B. (2005). Dynamics of iso- and cross-surround facilitation suggest distinct mechanisms. Vision Research, 45, 3060-3073.
9. Cass, J. & Spehar B (2005). Dynamics of collinear facilitation are consistent with long-range horizontal striate connections. Vision Research, 45, 2728-2739.
10. Alais, D., Lorenceau, J., Arrighi, R. & Cass, J. (2005). Contour interactions between pairs of Gabors engaged in binocular rivalry reveal a map of the association field. Vision Research, 46, 1473-1487.
11. Burke, D., Cieplucha, C., Cass, J., Russell, F. & Fry, G. (2002). (Win-shift and win-stay learning in short beaked echidna (Tachyglossus aculeatus). Animal Cognition, 5, 79-84.

Published conference proceeedings

1. Cass, J., Van der Burg, E., & Alais, D. (2009). Low and high frequency flicker captures attention during visual search. Perception, 38 (Suppl.)
2. Apthorp, D., Cass, J. & Alais, D. (2009). Orientation-tuned masking and adaptation caused by motion streaks. Perception, 38 (Suppl.)
3. Alais, D., Cass, J., OShea, R. P. & Blake, R. (2009). Adaptation-related changes during binocular rivalry phases: Dominance sensitivity declines, suppression sensitivity improves. Perception, 38 (Suppl.)
4. Wardle, S., Alais, D. & Cass, J. (2009). Bistable depth ordering in motion transparency. Perception (Suppl.), 61
5. Cass, J., Greenwood, J., Bex, P. J. & Dakin, S. C. (2009). Visual crowding: an uncertainty of positions. Australian Journal of Psychology (Suppl.), 61
6. Cass, J., & Alais, D. (2009). Orientation bandwidths are invariant over spatio-temporal frequency when isotropic components are removed. Australian Journal of Psychology (Suppl.), 61
7. Apthorp, D., Cass, J., & Alais, D. (2009). Motion streaks: Orientation and spatial frequency tuning. Australian Journal of Psychology, 61 (Suppl.)
8. Wardle, S., Cass, J., & Alais, J. (2009). The effect of spatial frequency on bi-stable depth ordering in transparent motion. Australian Journal of Psychology, 61 (Suppl.)
9. Alais, D., Van der Burg, E. & Cass, J. (2009). Low or high frequency flicker captures attention. Australian Journal of Psychology, 61 (Suppl.)
10. Dakin, S. C. D., Greenwood, J., Cass, J. & Bex, P. J. (2009). Positional averaging within and without contours explains crowding between letter-like stimuli. Vision Sciences Society
11. Cass, J., & Alais, D. (2008). Temporal whitening is driven by transient noise. Perception, 37, (Suppl.).
12. Cass, J., Stuit, S., & Alais, D. (2008). Inter-ocular masking reveals that low and high temporal frequency masking are mediated cortically. Australian Journal of Psychology, 53, (Suppl.), 60.
13. Cass, J., Bex, P. J., Watt, R., & Dakin, S. C. (2007). Equivalent noise reveals that masking is not an attentional effect. Vision Sciences Society
14. Bex, P. J., Langley, K. & Cass, J. (2007). A cortical locus for post-adaptation facilitation in spatio-temporal vision. Vision Sciences Society
15. Anderson, B., Cass, J. & Ovari, J. (2007). Non-Bayesian mechanisms of contour synthesis. Vision Sciences Society
16. Alais, D., Cass, J., Spehar, B. & Clifford, C. W. G. (2007). Temporal masking within and between chromatic and achromatic axes. Vision Sciences Society
17. Cass, J., Bex, P. J. & Dakin, S. C. (2007). Redundancy reduction processes revealed by centre-surround interactions. Perception, 36, (Suppl.).
18. Alais, D. & Cass, J. (2006). Temporal order judgments are modality specific: a perceptual learning study. Perception, 35, (Suppl.).
19. Arnold, D., Cass, J. & Alais, D. (2006). Mandatory integration of visual and auditory timing cues. 4th Asian Conference on Vision
20. Cass, J. & Alais, D. (2006). Evidence for interacting temporal channels: spatial determinants. Vision Sciences Society
21. Cass, J., Spehar, B., Alais, D. & Arrighi, R. (2005). Spatial and temporal determinants of contrast facilitation and suppression. Vision Sciences Society.
22. Cass, J. & Spehar, B. (2004). Dynamics of facilitation are consistent with striate mediation. Australian Journal of Psychology, 56, (Suppl.), 109.
23. Cass, J. & Spehar, B. (2004). Spatiotemporal dynamics of coaxial and parallel contrast facilitation suggest distinct mechanisms. Perception, 31 (Suppl.), 183.
24. Cass, J., Burke, D., Hayward, W. (2001). Recognition of parts and their relations is viewpoint dependent. Australian Journal of Psychology, 53, (Suppl.), 45.
25. Burke, D., Cieplucha, C., & Cass, J. (2000) The role of foraging ecology in spatial memory performance in echidnas (Tachyglossus aculeatus). Australian Society for the Study of Animal Behaviour Conference 2000.