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Outputs (22)

Motion-based super-resolution in the peripheral visual field (2017)
Journal Article
Patrick, J. A., Roach, N. W., & McGraw, P. V. (2017). Motion-based super-resolution in the peripheral visual field. Journal of Vision, 17(9), Article 15. https://doi.org/10.1167/17.9.15

Improvements in foveal acuity for moving targets have been interpreted as evidence for the ability of the visual system to combine information over space and time, in order to reconstruct the image at a higher resolution (super-resolution). Here, we... Read More about Motion-based super-resolution in the peripheral visual field.

Visual perception in dyslexia is limited by sub-optimal scale selection (2017)
Journal Article
Johnston, R., Pitchford, N. J., Roach, N. W., & Ledgeway, T. (in press). Visual perception in dyslexia is limited by sub-optimal scale selection. Scientific Reports, 7, Article 6593. https://doi.org/10.1038/s41598-017-06967-6

Readers with dyslexia are purported to have a selective visual impairment but the underlying nature of the deficit remains elusive. Here, we used a combination of behavioural psychophysics and biologically-motivated computational modeling to investig... Read More about Visual perception in dyslexia is limited by sub-optimal scale selection.

Encoding of rapid time-varying information is impaired in poor readers (2017)
Journal Article
Johnston, R., Pitchford, N. J., Roach, N. W., & Ledgeway, T. (2017). Encoding of rapid time-varying information is impaired in poor readers. Journal of Vision, 17(5), Article 1. https://doi.org/10.1167/17.5.1

A characteristic set of eye movements and fixations are made during reading, so the position of words on the retinae is constantly being updated. Effective decoding of print requires this temporal stream of visual information to be segmented or parse... Read More about Encoding of rapid time-varying information is impaired in poor readers.

Generalization of prior information for rapid Bayesian time estimation (2016)
Journal Article
Roach, N. W., McGraw, P. V., Whitaker, D., & Heron, J. (2017). Generalization of prior information for rapid Bayesian time estimation. Proceedings of the National Academy of Sciences, 114(2), 412-417. https://doi.org/10.1073/pnas.1610706114

To enable effective interaction with the environment, the brain combines noisy sensory information with expectations based on prior experience. There is ample evidence showing that humans can learn statistical regularities in sensory input and exploi... Read More about Generalization of prior information for rapid Bayesian time estimation.

Object size determines the spatial spread of visual time (2016)
Journal Article
Fulcher, C., McGraw, P. V., Roach, N. W., Whitaker, D., & Heron, J. (2016). Object size determines the spatial spread of visual time. Proceedings of the Royal Society B: Biological Sciences, 283(1835), Article 20161024. https://doi.org/10.1098/rspb.2016.1024

A key question for temporal processing research is how the nervous system extracts event duration, despite a notable lack of neural structures dedicated to duration encoding. This is in stark contrast to the orderly arrangement of neurons tasked with... Read More about Object size determines the spatial spread of visual time.

Why is the processing of global motion impaired in adults with developmental dyslexia? (2016)
Journal Article
Johnston, R., Pitchford, N. J., Roach, N. W., & Ledgeway, T. (2016). Why is the processing of global motion impaired in adults with developmental dyslexia?. Brain and Cognition, 108, 20-31. https://doi.org/10.1016/j.bandc.2016.07.004

Individuals with dyslexia are purported to have a selective dorsal stream impairment that manifests as a deficit in perceiving visual global motion relative to global form. However, the underlying nature of the visual deficit in readers with dyslexia... Read More about Why is the processing of global motion impaired in adults with developmental dyslexia?.

Perceptual learning shapes multisensory causal inference via two distinct mechanisms (2016)
Journal Article
McGovern, D. P., Roudaia, E., Newell, F. N., & Roach, N. W. (2016). Perceptual learning shapes multisensory causal inference via two distinct mechanisms. Scientific Reports, 6, Article 24673. https://doi.org/10.1038/srep24673

To accurately represent the environment, our brains must integrate sensory signals from a common source while segregating those from independent sources. A reasonable strategy for performing this task is to restrict integration to cues that coincide... Read More about Perceptual learning shapes multisensory causal inference via two distinct mechanisms.

Adaptation to implied tilt: extensive spatial extrapolation of orientation gradients (2013)
Journal Article
Roach, N. W., & Webb, B. S. (2013). Adaptation to implied tilt: extensive spatial extrapolation of orientation gradients. Frontiers in Psychology, 4(July), Article 10. https://doi.org/10.3389/fpsyg.2013.00438

To extract the global structure of an image, the visual system must integrate local orientation estimates across space. Progress is being made toward understanding this integration process, but very little is known about whether the presence of struc... Read More about Adaptation to implied tilt: extensive spatial extrapolation of orientation gradients.

Perceptual learning reconfigures the effects of visual adaptation (2012)
Journal Article
McGovern, D. P., Roach, N. W., & Webb, B. S. (2012). Perceptual learning reconfigures the effects of visual adaptation. Journal of Neuroscience, 32(39), https://doi.org/10.1523/JNEUROSCI.1363-12.2012

Our sensory experiences over a range of different timescales shape our perception of the environment. Two particularly striking short-term forms of plasticity with manifestly different time courses and perceptual consequences are those caused by visu... Read More about Perceptual learning reconfigures the effects of visual adaptation.