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All Outputs (33)

Time-order errors in duration judgment are independent of spatial positioning (2017)
Journal Article
Harrison, C., Binetti, N., Mareschal, I., & Johnston, A. (2017). Time-order errors in duration judgment are independent of spatial positioning. Frontiers in Psychology, 8, Article 340. https://doi.org/10.3389/fpsyg.2017.00340

Time-order errors (TOEs) occur when the discriminability between two stimuli are affected by the order in which they are presented. While TOEs have been studied since the 1860s, it is unknown whether the spatial properties of a stimulus will affect t... Read More about Time-order errors in duration judgment are independent of spatial positioning.

Multiple-stage ambiguity in motion perception reveals global computation of local motion directions (2016)
Journal Article
Rider, A. T., Nishida, S., & Johnston, A. (2016). Multiple-stage ambiguity in motion perception reveals global computation of local motion directions. Journal of Vision, 16(15), Article 7. https://doi.org/10.1167/16.15.7

The motion of a 1D image feature, such as a line, seen through a small aperture, or the small receptive field of a neural motion sensor, is underconstrained, and it is not possible to derive the true motion direction from a single local measurement.... Read More about Multiple-stage ambiguity in motion perception reveals global computation of local motion directions.

Face exploration dynamics differentiate men and women (2016)
Journal Article
Coutrot, A., Binetti, N., Harrison, C., Mareschal, I., & Johnston, A. (2016). Face exploration dynamics differentiate men and women. Journal of Vision, 16(14), Article 16. https://doi.org/10.1167/16.14.16

The human face is central to our everyday social interactions. Recent studies have shown that while gazing at faces, each one of us has a particular eyescanning pattern, highly stable across time. Although variables such as culture or personality hav... Read More about Face exploration dynamics differentiate men and women.

Temporal synchrony is an effective cue for grouping and segmentation in the absence of form cues (2016)
Journal Article
Rideaux, R., Badcock, D. R., Johnston, A., & Edwards, M. (2016). Temporal synchrony is an effective cue for grouping and segmentation in the absence of form cues. Journal of Vision, 16(11), 1-12. https://doi.org/10.1167/16.11.23

The synchronous change of a feature across multiple discrete elements, i.e., temporal synchrony, has been shown to be a powerful cue for grouping and segmentation. This has been demonstrated with both static and dynamic stimuli for a range of tasks.... Read More about Temporal synchrony is an effective cue for grouping and segmentation in the absence of form cues.

An adaptable metric shapes perceptual space (2016)
Journal Article
Hisakata, R., Nishida, S., & Johnston, A. (2016). An adaptable metric shapes perceptual space. Current Biology, 26(14), R678-R680. https://doi.org/10.1016/j.cub.2016.05.047

How do we derive a sense of the separation of points in the world within a space-variant visual system? Visual directions are thought to be coded directly by a process referred to as local sign, in which a neuron acts as a labeled line for the percei... Read More about An adaptable metric shapes perceptual space.

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.

Changes in apparent duration follow shifts in perceptual timing (2015)
Journal Article
Bruno, A., Ayhan, I., & Johnston, A. (2015). Changes in apparent duration follow shifts in perceptual timing. Journal of Vision, 15(6), Article 2. https://doi.org/10.1167/15.6.2

It is well established that the apparent duration of moving visual objects is greater at higher as compared to slower speeds. Here we report the effects of acceleration and deceleration on the perceived duration of a drifting grating with average spe... Read More about Changes in apparent duration follow shifts in perceptual timing.

Illusory feature slowing: evidence for perceptual models of global facial change (2015)
Journal Article
Cook, R., Aichelburg, C., & Johnston, A. (2015). Illusory feature slowing: evidence for perceptual models of global facial change. Psychological Research, 26(4), 512-517. https://doi.org/10.1177/0956797614567340

Upright static faces are widely thought to recruit holistic representations, whereby individual features are integrated into nondecomposable wholes for recognition and interpretation. In contrast, little is known about the perceptual integration of d... Read More about Illusory feature slowing: evidence for perceptual models of global facial change.

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.