All Outputs (11)

Different types of uncertainty in multisensory perceptual decision making (2023)
Journal Article
Aston, S., Nardini, M., & Beierholm, U. (2023). Different types of uncertainty in multisensory perceptual decision making. Philosophical Transactions of the Royal Society B: Biological Sciences, 378(1886), Article 20220349. https://doi.org/10.1098/rstb.2022.0349

Efficient decision-making requires accounting for sources of uncertainty (noise, or variability). Many studies have shown how the nervous system is able to account for perceptual uncertainty (noise, variability) that arises from limitations in its ow... Read More about Different types of uncertainty in multisensory perceptual decision making.

Newly learned shape-colour associations show signatures of reliability-weighted averaging without forced fusion or a memory colour effect (2022)
Journal Article
Aston, S., Pattie, C., Graham, R., Slater, H., Beierholm, U., & Nardini, M. (2022). Newly learned shape-colour associations show signatures of reliability-weighted averaging without forced fusion or a memory colour effect. Journal of Vision, 22(13), Article 8. https://doi.org/10.1167/jov.22.13.8

Reliability-weighted averaging of multiple perceptual estimates (or cues) can improve precision. Research suggests that newly-learned statistical associations can be rapidly integrated in this way for efficient decision-making. Yet, it remains unclea... Read More about Newly learned shape-colour associations show signatures of reliability-weighted averaging without forced fusion or a memory colour effect.

Do EnChroma glasses improve performance on clinical tests for red-green color deficiencies? (2022)
Journal Article
Pattie, C., Aston, S., & Jordan, G. (2022). Do EnChroma glasses improve performance on clinical tests for red-green color deficiencies?. Optics Express, 30(18), 31872-31888. https://doi.org/10.1364/oe.456426

We investigated the claims of EnChroma that their notch filters aid chromatic discrimination in color-vision deficiencies (CVD). Few research studies have addressed these claims and reports are still inconclusive, mainly due to small sample sizes. We... Read More about Do EnChroma glasses improve performance on clinical tests for red-green color deficiencies?.

Developmental changes in colour constancy in a naturalistic object selection task (2022)
Journal Article
Wedge-Roberts, R., Aston, S., Beierholm, U., Kentridge, R., Hurlbert, A., Nardini, M., & Olkkonen, M. (2023). Developmental changes in colour constancy in a naturalistic object selection task. Developmental Science, 26(2), Article e13306. https://doi.org/10.1111/desc.13306

When the illumination falling on a surface changes, so does the reflected light. Despite this, adult observers are good at perceiving surfaces as relatively unchanging – an ability termed colour constancy. Very few studies have investigated colour co... Read More about Developmental changes in colour constancy in a naturalistic object selection task.

Newly learned novel cues to location are combined with familiar cues but not always with each other (2022)
Journal Article
Aston, S., Beierholm, U., & Nardini, M. (2022). Newly learned novel cues to location are combined with familiar cues but not always with each other. Journal of Experimental Psychology: Human Perception and Performance, 48(6), 639-652. https://doi.org/10.1037/xhp0001014

Mature perceptual systems can learn new arbitrary sensory signals (novel cues) to properties of the environment, but little is known about the extent to which novel cues are integrated into normal perception. In normal perception, multiple uncertain... Read More about Newly learned novel cues to location are combined with familiar cues but not always with each other.

Central tendency biases must be accounted for to consistently capture Bayesian cue combination in continuous response data (2021)
Journal Article
Aston, S., Negen, J., Nardini, M., & Beierholm, U. (2022). Central tendency biases must be accounted for to consistently capture Bayesian cue combination in continuous response data. Behavior Research Methods, 54(1), 508-521. https://doi.org/10.3758/s13428-021-01633-2

Observers in perceptual tasks are often reported to combine multiple sensory cues in a weighted average that improves precision – in some studies, approaching statistically-optimal (Bayesian) weighting, but in others departing from optimality, or not... Read More about Central tendency biases must be accounted for to consistently capture Bayesian cue combination in continuous response data.

Exploring the Determinants of Color Perception Using #Thedress and Its Variants: The Role of Spatio-Chromatic Context, Chromatic Illumination, and Material–Light Interaction (2020)
Journal Article
Aston, S., Denisova, K., Hurlbert, A., Olkkonen, M., Pearce, B., Rudd, M., Werner, A., & Xiao, B. (2020). Exploring the Determinants of Color Perception Using #Thedress and Its Variants: The Role of Spatio-Chromatic Context, Chromatic Illumination, and Material–Light Interaction. Emotion, 49(11), 1235-1251. https://doi.org/10.1177/0301006620963808

The colors that people see depend not only on the surface properties of objects but also on how these properties interact with light as well as on how light reflected from objects interacts with an individual’s visual system. Because individual visua... Read More about Exploring the Determinants of Color Perception Using #Thedress and Its Variants: The Role of Spatio-Chromatic Context, Chromatic Illumination, and Material–Light Interaction.

Specular highlights improve colour constancy when other cues are weakened (2020)
Journal Article
Wedge-Roberts, R., Aston, S., Beierholm, U., Kentridge, R., Hurlbert, A., Nardini, M., & Olkkonen, M. (2020). Specular highlights improve colour constancy when other cues are weakened. Journal of Vision, 20(12), 1-22. https://doi.org/10.1167/jov.20.12.4

Previous studies suggest that to achieve color constancy, the human visual system makes use of multiple cues, including a priori assumptions about the illumination (“daylight priors”). Specular highlights have been proposed to aid constancy, but the... Read More about Specular highlights improve colour constancy when other cues are weakened.

Bayesian transfer in a complex spatial localization task (2020)
Journal Article
Kiryakova, R., Aston, S., Beierholm, U., & Nardini, M. (2020). Bayesian transfer in a complex spatial localization task. Journal of Vision, 20(6), Article 17. https://doi.org/10.1167/jov.20.6.17

Prior knowledge can help observers in various situations. Adults can simultaneously learn two location priors and integrate these with sensory information to locate hidden objects. Importantly, observers weight prior and sensory (likelihood) informat... Read More about Bayesian transfer in a complex spatial localization task.

Illumination discrimination for chromatically biased illuminations: Implications for color constancy (2019)
Journal Article
Aston, S., Radonjic, A., Brainard, D. H., & Hurlbert, A. C. (2019). Illumination discrimination for chromatically biased illuminations: Implications for color constancy. Journal of Vision, 19(3), Article 15. https://doi.org/10.1167/19.3.15

We measured discrimination thresholds for illumination changes along different chromatic directions starting from chromatically biased reference illuminations. Participants viewed a Mondrian-papered scene illuminated by LED lamps. The scene was first... Read More about Illumination discrimination for chromatically biased illuminations: Implications for color constancy.

Illumination discrimination in the absence of a fixed surface-reflectance layout (2018)
Journal Article
Radonjić, A., Ding, X., Krieger, A., Aston, S., Hurlbert, A. C., & Brainard, D. H. (2018). Illumination discrimination in the absence of a fixed surface-reflectance layout. Journal of Vision, 18(5), Article 11. https://doi.org/10.1167/18.5.11

Previous studies have shown that humans can discriminate spectral changes in illumination and that this sensitivity depends both on the chromatic direction of the illumination change and on the ensemble of surfaces in the scene. These studies, howeve... Read More about Illumination discrimination in the absence of a fixed surface-reflectance layout.