Dr John Cass

Biography

John was awarded his PhD in 2005 from the University of New South Wales in the area of visual psychophysics. A major research theme is sensory dynamics: such questions as how do sensory processes evolve over time; what temporal information are we sensitive to; and how do we perceive time? Other research interests include the effects of context on visual perception such as “visual crowding” and the perceptual integration of audio and visual information.

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Areas of Research

Psychophysics, sensory and perceptual processes; Time perception; Visual dynamics; Spatial vision; Multisensory integration

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Grants / Current Projects

Australian Research Council Discovery Project
Temporal synchrony as a binding cue between the senses
Alais, D., & Cass, J.
$381,000 Jan 2012 – December 2014

UWS International Research Initiatives Scheme
Auditory facilitation of visual search; a steay state visual evoked potential investigation of neural mechanisms.
Watson, T., & Cass,
$5,667

ARC Australian Postdoctoral Fellowship: Filters reveal what flicker conceals: Temporal processing in the human visual system. July 2007-June 2011.

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Selected Publications

Journal Publications

Cass, J., Johnson, A., Bex, P. J. & Alais, D. (2012). Orientation specificity of adaptation: isotropic adaptation is purely monocular. PLoS One, In Press

Zannoli, M., Cass, J., Mamassian, P. & Alais, D. (2012). Disparity-based stereomotion detectors are poorly suited to track 2D motion.(opens in a new window) Journal of Vision, 12, 1-9

Wardle, S., Bex, P. J., Cass, J., & Alais, D. (2012). Stereoacuity in the periphery is limited by internal noise. Journal of Vision,(opens in a new window) 6.

Zannoli, M., Cass, J., Mamassian, P. & Alais, D. (2012). Synchronized Audio-Visual Transients Drive Efficient Visual Search for Motion-in-Depth.(opens in a new window) PLoS One, 5, 1-6

Alais, D., Apthorp, D., Karmann, A., & Cass, J. (2011). Temporal integration of movement: the time-course of motion streaks revealed by masking. (opens in a new window) PLoS One, 6, 1-10. 

Apthorp D, Cass J, Alais D, 2011, The Spatial turning of 'motion streak' mechanisms revealed by masking and adaptation, Journal of Vision, 11(7), 1-16.

Cass, J., Van der Burg, E. & Alais, D. (2011). Finding flicker: Critical differences in temporal frequency capture attention. Frontiers in Perception Science, 2, 1-7

Wardle, S. G., Cass, J., Brooks, K. R. , & Alais, D. (2010). Breaking camouflage: Binocular disparity reduces contrast masking in natural images, (opens in a new window) Journal of Vision, 10 (14), 1-12

Alais, D., Cass, J., O’Shea, R., & Blake, R. (2010). Visual sensitivity underlying changes in visual consciousness. (opens in a new window) Current Biology20, 1362-1367.
 
Dakin, S. C., Cass, J., Greenwood, J. & Bex, P. J. (2010). Probabilistic, positional averaging predicts object-centred crowding effects with letter-like stimuli. (opens in a new window) Journal of Vision, 10, 14.
 
Apthorp, D., Cass, J., & Alais, D. (2010). Orientation tuning of contrast masking caused by motion streaks. (opens in a new window) Journal of Vision. 10, 11.
 
Alais, D., & Cass, J. (2010). Multisensory learning of temporal order: audiovisual learning transfers to vision but not audition. (opens in a new window) PLoS One, 5(6), 1-9.

Van der Burg, E., Cass, J., Olivers, C. N. L., Theeuwes, J. & Alais, D. (2010). Efficient visual search from synchronized auditory signals requires transient audiovisual events. (opens in a new window) PLoS One, 5, 1-11

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. (opens in a new window) Journal of Vision, 9 (12), 1-14.

Dakin, S. C., Watt, R., Cass, J., & Bex, P. J. (2009). Dissociable effects of attention and crowding on orientation averaging. (opens in a new window) Journal of Vision, 9 (11), 1-16.

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. (opens in a new window) Journal of Vision, 9 (11), 1-15.

Cass, J., Alais, D., Spehar B., & Bex, P. J. (2009). Temporal whitening: transient noise equalizes the 1/f amplitude spectrum. (opens in a new window) Journal of Vision, 9 (10), 1-19.

Cass, J., Clifford, C. W. G., Alais, D., & Spehar B. (2009). Temporal structure of chromatic channels revealed through masking, (opens in a new window) Journal of Vision, 9 (5), 1-15.

Cass, J. & Alais, D. (2006a). Evidence for two interacting temporal channels in visual processing. (opens in a new window) Vision Research, 46, 2859-2868.

Cass, J. & Alais, D. (2006b). The mechanisms of collinear integration. (opens in a new window) Journal of Vision, 6, 915-922.

Cass, J. & Spehar, B. (2005). Dynamics of iso- and cross-surround facilitation suggest distinct mechanisms. (opens in a new window) Vision Research, 45, 3060-3073.

Cass, J. & Spehar B (2005). Dynamics of collinear facilitation are consistent with long-range horizontal striate connections. (opens in a new window) Vision Research, 45, 2728-2739.

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. (opens in a new window) Vision Research, 46, 1473-1487.

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.

Referred Conference Publications

Cass, J. (2010). Orientation-dependence of adaptation and masking: isotropic adaptation fails to transfer between the eyes. [Abstract] Perception, 39 (Suppl.).

Alais, D., Apthorp, D., Karmann, A., & Cass, J. (2010). The time-course of motion streak integration at photopic and scotopic light levels . (opens in a new window) [Abstract] Perception, 39 (Suppl.).

Wardle, S. G., Cass, J., & Alais, D. (2010). Stereopsis reduces contrast masking in natural images . (opens in a new window)[Abstract] Perception, 39 (Suppl.).

Van der Burg, E., Cass, J., Olivers, C. N. L., Theeuwes, J., & Alais, D. (2010). Efficient visual search from synchronized auditory signals requires transient audiovisual events. [Abstract] Journal of Vision, 10(7), 855.

Cass, J. (2010). Mutual effects of orientation and contrast within and between the eyes: from summation to suppression. [Abstract] Journal of Vision, 10(7).

Cass, J. (2010). Orientation masking revisited: phase lets the DoGs out. [Abstract] Australasian Experimental Psychology Conference, Australian Journal of Psychology. Australian Journal of Psychology, 62 (Suppl.).

Alais, D., Cass, J., O’Shea, R. P., & Blake, R. (2010). [Abstract] Australasian Experimental Psychology Conference, Australian Journal of Psychology, 62 (Suppl.).

Cass, J., Van der Burg, E., & Alais, D. (2009). Low and high frequency flicker captures attention during visual search. Perception, 38 (Suppl.)

Apthorp, D., Cass, J. & Alais, D. (2009). Orientation-tuned masking and adaptation caused by motion streaks. Perception, 38 (Suppl.)

Alais, D., Cass, J., O’Shea, R. P. & Blake, R. (2009). Adaptation-related changes during binocular rivalry phases: Dominance sensitivity declines, suppression sensitivity improves. Perception, 38 (Suppl.)

Wardle, S., Alais, D. & Cass, J. (2009). Bistable depth ordering in motion transparency. Perception (Suppl.), 61

Cass, J., Greenwood, J., Bex, P. J. & Dakin, S. C. (2009). Visual crowding: an uncertainty of positions. Australian Journal of Psychology (Suppl.), 61

Cass, J., & Alais, D. (2009). Orientation bandwidths are invariant over spatio-temporal frequency when isotropic components are removed. Australian Journal of Psychology (Suppl.), 61

Apthorp, D., Cass, J., & Alais, D. (2009). Motion streaks: Orientation and spatial frequency tuning. Australian Journal of Psychology, 61 (Suppl.)

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.)

Alais, D., Van der Burg, E. & Cass, J. (2009). Low or high frequency flicker captures attention. Australian Journal of Psychology, 61 (Suppl.)

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.

Cass, J., & Alais, D. (2008). Temporal whitening is driven by transient noise. Perception, 37, (Suppl.).

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.

Cass, J., Bex, P. J., Watt, R., & Dakin, S. C. (2007). Equivalent noise reveals that masking is not an attentional effect. Vision Sciences Society

Bex, P. J., Langley, K. & Cass, J. (2007). A cortical locus for post-adaptation facilitation in spatio-temporal vision. Vision Sciences Society

Anderson, B., Cass, J. & Ovari, J. (2007). Non-Bayesian mechanisms of contour synthesis. Vision Sciences Society

Alais, D., Cass, J., Spehar, B. & Clifford, C. W. G. (2007). Temporal masking within and between chromatic and achromatic axes. Vision Sciences Society

Cass, J., Bex, P. J. & Dakin, S. C. (2007). Redundancy reduction processes revealed by centre-surround interactions. Perception, 36, (Suppl.).

Alais, D. & Cass, J. (2006). Temporal order judgments are modality specific: a perceptual learning study. Perception, 35, (Suppl.).

Arnold, D., Cass, J. & Alais, D. (2006). Mandatory integration of visual and auditory timing cues. 4th Asian Conference on Vision

Cass, J. & Alais, D. (2006). Evidence for interacting temporal channels: spatial determinants. Vision Sciences Society.

Cass, J., Spehar, B., Alais, D. & Arrighi, R. (2005). Spatial and temporal determinants of contrast facilitation and suppression. Vision Sciences Society.

Cass, J. & Spehar, B. (2004). Dynamics of facilitation are consistent with striate mediation.Australian Journal of Psychology, 56, (Suppl.), 109.

Cass, J. & Spehar, B. (2004). Spatiotemporal dynamics of coaxial and parallel contrast facilitation suggest distinct mechanisms. Perception, 31 (Suppl.), 183.

Cass, J., Burke, D., Hayward, W. (2001). Recognition of parts and their relations is viewpoint dependent. Australian Journal of Psychology, 53, (Suppl.), 45.

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.

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Professional affiliation

Review Editor for Frontiers in Neuroscience
Reviewer for:
Journal of Neurophysiology
PLoS One
Vision Research
Journal of Vision
Perception
Attention, Perception & Psychophysics

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