Outputs (22)

The spatial properties of adaptation-induced distance compression (2022)
Journal Article
Jovanovic, L., McGraw, P. V., Roach, N. W., & Johnston, A. (2022). The spatial properties of adaptation-induced distance compression. Journal of Vision, 22(11), Article 7. https://doi.org/10.1167/jov.22.11.7

Exposure to a dynamic texture reduces the perceived separation between objects, altering the mapping between physical relations in the environment and their neural representations. Here we investigated the spatial tuning and spatial frame of referenc... Read More about The spatial properties of adaptation-induced distance compression.

Multiple spatial reference frames underpin perceptual recalibration to audio-visual discrepancies (2021)
Journal Article
Watson, D. M., Akeroyd, M. A., Roach, N. W., & Webb, B. S. (2021). Multiple spatial reference frames underpin perceptual recalibration to audio-visual discrepancies. PLoS ONE, 16(5), 1-21. https://doi.org/10.1371/journal.pone.0251827

In dynamic multisensory environments, the perceptual system corrects for discrepancies arising between modalities. For instance, in the ventriloquism aftereffect (VAE), spatial disparities introduced between visual and auditory stimuli lead to a perc... Read More about Multiple spatial reference frames underpin perceptual recalibration to audio-visual discrepancies.

Learning to silence saccadic suppression (2021)
Journal Article
Scholes, C., McGraw, P. V., & Roach, N. W. (2021). Learning to silence saccadic suppression. Proceedings of the National Academy of Sciences, 118(6), Article e2012937118. https://doi.org/10.1073/pnas.2012937118

Perceptual stability is facilitated by a decrease in visual sensitivity during rapid eye movements, called saccadic suppression. While a large body of evidence demonstrates that saccadic programming is plastic, little is known about whether the perce... Read More about Learning to silence saccadic suppression.

Distinct mechanisms govern recalibration to audio-visual discrepancies in remote and recent history (2019)
Journal Article
Watson, D. M., Akeroyd, M. A., Roach, N. W., & Webb, B. S. (2019). Distinct mechanisms govern recalibration to audio-visual discrepancies in remote and recent history. Scientific Reports, 9, Article 8513. https://doi.org/10.1038/s41598-019-44984-9

To maintain perceptual coherence, the brain corrects for discrepancies between the senses. If, for example, lights are consistently offset from sounds, representations of auditory space are remapped to reduce this error (spatial recalibration). While... Read More about Distinct mechanisms govern recalibration to audio-visual discrepancies in remote and recent history.

Adaptation reveals multi-stage coding of visual duration (2019)
Journal Article
Heron, J., Fulcher, C., Collins, H., Whitaker, D., & Roach, N. W. (2019). Adaptation reveals multi-stage coding of visual duration. Scientific Reports, 9, 1-11. https://doi.org/10.1038/s41598-018-37614-3

In confict with historically dominant models of time perception, recent evidence suggests that the encoding of our environment’s temporal properties may not require a separate class of neurons whose raison d'être is the dedicated processing of tempor... Read More about Adaptation reveals multi-stage coding of visual duration.

Estimation of contrast sensitivity from fixational eye movements (2018)
Journal Article
Denniss, J., Scholes, C., McGraw, P. V., Nam, S.-H., & Roach, N. W. (2018). Estimation of contrast sensitivity from fixational eye movements. Investigative Ophthalmology & Visual Science, 59(13), 5408-5416. https://doi.org/10.1167/iovs.18-24674

Purpose: Even during steady fixation, people make small eye movements such as microsaccades, whose rate is altered by presentation of salient stimuli. Our goal was to develop a practical method for objectively and robustly estimating contrast sensiti... Read More about Estimation of contrast sensitivity from fixational eye movements.

Visual crowding is unaffected by adaptation-induced spatial compression (2018)
Journal Article
Chambers, A. L., Roach, N. W., & Johnston, A. (2018). Visual crowding is unaffected by adaptation-induced spatial compression. Journal of Vision, 18(3), Article 12. https://doi.org/10.1167/18.3.12

It has recently been shown that adapting to a densely textured stimulus alters the perception of visual space, such that the distance between two points subsequently presented in the adapted region appears reduced (Hisakata, Nishida, & Johnston, 2016... Read More about Visual crowding is unaffected by adaptation-induced spatial compression.

Selective modulation of visual sensitivity during fixation (2018)
Journal Article
Scholes, C. D., McGraw, P. V., & Roach, N. W. (in press). Selective modulation of visual sensitivity during fixation. Journal of Neurophysiology, 119(6), https://doi.org/10.1152/jn.00819.2017

During periods of steady fixation, we make small amplitude ocular movements, termed microsaccades, at a rate of 1-2 every second. Early studies provided evidence that visual sensitivity is reduced during microsaccades - akin to the well-established s... Read More about Selective modulation of visual sensitivity during fixation.

Rate after-effects fail to transfer cross-modally: evidence for distributed sensory timing mechanisms (2018)
Journal Article
Motola, A., Heron, J., McGraw, P. V., Roach, N. W., & Whitaker, D. (2018). Rate after-effects fail to transfer cross-modally: evidence for distributed sensory timing mechanisms. Scientific Reports, 8, Article 924. https://doi.org/10.1038/s41598-018-19218-z

Accurate time perception is critical for a number of human behaviours, such as understanding speech and the appreciation of music. However, it remains unresolved whether sensory time perception is mediated by a central timing component regulating all... Read More about Rate after-effects fail to transfer cross-modally: evidence for distributed sensory timing mechanisms.

New insights into the role of motion and form vision in neurodevelopmental disorders (2017)
Journal Article
Johnston, R., Pitchford, N. J., Roach, N. W., & Ledgeway, T. (2017). New insights into the role of motion and form vision in neurodevelopmental disorders. Neuroscience and Biobehavioral Reviews, 83, https://doi.org/10.1016/j.neubiorev.2017.09.031

A selective deficit in processing the global (overall) motion, but not form, of spatially extensive objects in the visual scene is frequently associated with several neurodevelopmental disorders, including preterm birth. Existing theories that propos... Read More about New insights into the role of motion and form vision in neurodevelopmental disorders.