For whom the bell tolls : periodic reactivation of sensory cortex in the gamma band as a substrate of visual working memory maintenance

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Response selection modulates crowding : a cautionary tale for invoking top-down explanations

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Does self-prioritization affect perceptual processes?

This study is based on a proposal pre-submitted to Visual Cognition, where the study design and analysis plan was registered before data collection. We thank Margaret Jackson for pointers on the memory literature and Sandie Cleland for providing a list of non-words. Further, we thank Aleksandar Visokomogilski for his advice on HDDM, as well as Tanya Bhayani and Malwina Filipczuk for their help with data collection.Peer reviewedPostprintPostprin

Clustering leads to underestimation of numerosity, but crowding is not the cause

Acknowledgments We would like to thank Ian Thornton for his helpful comments on an earlier draft, and Marlene Poncet for useful discussions regarding the experimental design.Peer reviewedPostprin

Subitizing object parts reveals a second stage of individuation

Open Practices Statement The experimental programs, data and code for data analysis for all studies are made available publicly available on OSF at https://osf.io/wv9hq/. None of the experiments were preregistered.Peer reviewedPublisher PD

Contour integration in the parafovea and the near periphery:Testing the association field account

It is essential for object recognition that visual information is appropriately combined. To explain stages of perceptual organisation that group elements into contours, the concept of association fields has been invoked. Local elements within the boundaries of an association field are grouped to give rise to the percept of a contour if they are appropriately aligned, reasonably similar and close. However, the size of this spatial window remains unclear, as well as how this changes with visual field location. To address this, we studied the combined influence of eccentricity and inter-element spacing on contour detection. Our findings indicate a clear difference in the processing of contours between the parafovea and the periphery. Contour integration in parafoveal regions is efficient and highly stable across a wide range of inter-element spacings and levels of orientation noise. In the periphery, efficient integration is only observed for elements close enough to fall within adjacent receptive fields, while increased inter-element spacings and orientation changes lead to a failure of contour integration. We conclude that two distinct mechanisms underlie contour integration, each with its own spatial extent and tolerance to noise - with the efficient, association-field like mechanism being a characteristic of central vision

Masking, crowding and grouping:Connecting low and mid-level vision

Acknowledgments JM (principal investigator) and RC (co-investigator) were supported by grant BB/R009287/1 from UKRI BBSRC. We thank Prof. Arash Sahraie for lending us the equipment used to monitor eye movements, as well as the trial lens set. We also thank Nicholas Jeerakun for his helpful comments and the inspiration that led to the visualisation of the visual fields in figure 18.Peer reviewedPublisher PD

Visual field asymmetries in numerosity processing

Acknowledgements We thank Marlene Poncet for helpful comments on the manuscript.Peer reviewedPublisher PD

The eye that binds : Feature integration is not disrupted by saccadic eye movements

Open Access via the Springer Compact Agreement FundRef James S. McDonnell Foundation The data for both experiments, as well as a file containing the stimuli of experiment 1 are available at https://osf.io/k49mf/, where experiment 1 was also preregistered. Acknowledgements: The authors thank Johanna Barclay, Rachel Buhler, Qjan Li, Jesus Rendon, Caitlyn Smith, Alejandro Suarez and Vasilena Voynikova, who collected the data of experiment 2 as part of a group project.Peer reviewedPublisher PD

Critical resolution : A superior measure of crowding

This work was supported by the Biotechnology and Biological Sciences Research Council (BBSRC) [grant number BB/J01446X/1]. We would like to thank our anonymous reviewers for their thoughtful feedback, which helped us fine-tune our proposal about critical resolution.Peer reviewedPublisher PD