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Pupil dilation as an index of preferred mutual gaze duration (2016)
Journal Article
Binetti, N., Harrison, C., Coutrot, A., Johnston, A., & Mareschal, I. (2016). Pupil dilation as an index of preferred mutual gaze duration. Royal Society Open Science, 3(7), https://doi.org/10.1098/rsos.160086

Most animals look at each other to signal threat or interest. In humans, this social interaction is usually punctuated with brief periods of mutual eye contact. Deviations from this pattern of gazing behaviour generally make us feel uncomfortable and... Read More about Pupil dilation as an index of preferred mutual gaze duration.

Difference magnitude is not measured by discrimination steps for order of point patterns (2016)
Journal Article
Protonotarios, E. D., Johnston, A., & Griffin, L. D. (2016). Difference magnitude is not measured by discrimination steps for order of point patterns. Journal of Vision, 16(9), https://doi.org/10.1167/16.9.2

We have shown in previous work that the perception of order in point patterns is consistent with an interval scale structure (Protonotarios, Baum, Johnston, Hunter, & Griffin, 2014). The psychophysical scaling method used relies on the confusion betw... Read More about Difference magnitude is not measured by discrimination steps for order of point patterns.

Time order reversals and saccades (2016)
Journal Article
Kresevic, J. L., Marinovic, W., Johnston, A., & Arnold, D. H. (2016). Time order reversals and saccades. Vision Research, 125, https://doi.org/10.1016/j.visres.2016.04.005

Ballistic eye movements, or saccades, present a major challenge to the visual system. They generate a rapid blur of movement across the surface of the retinae that is rarely consciously seen, as awareness of input is suppressed around the time of a s... Read More about Time order reversals and saccades.

Visual motion induces a forward prediction of spatial pattern (2011)
Journal Article
Roach, N. W., McGraw, P. V., & Johnston, A. (2011). Visual motion induces a forward prediction of spatial pattern. Current Biology, 21(9), https://doi.org/10.1016/j.cub.2011.03.031

Cortical motion analysis continuously encodes image velocity but might also be used to predict future patterns of sensory input along the motion path. We asked whether this predictive aspect of motion is exploited by the human visual system. Targets... Read More about Visual motion induces a forward prediction of spatial pattern.