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A new method for mapping perceptual biases across visual space

Finlayson, NJ; Papageorgiou, A; Schwarzkopf, DS; (2017) A new method for mapping perceptual biases across visual space. Journal of Vision , 17 (9) , Article 5. 10.1167/17.9.5. Green open access

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Abstract

How we perceive the environment is not stable and seamless. Recent studies found that how a person qualitatively experiences even simple visual stimuli varies dramatically across different locations in the visual field. Here we use a method we developed recently that we call multiple alternatives perceptual search (MAPS) for efficiently mapping such perceptual biases across several locations. This procedure reliably quantifies the spatial pattern of perceptual biases and also of uncertainty and choice. We show that these measurements are strongly correlated with those from traditional psychophysical methods and that exogenous attention can skew biases without affecting overall task performance. Taken together, MAPS is an efficient method to measure how an individual's perceptual experience varies across space.

Type: Article
Title: A new method for mapping perceptual biases across visual space
Location: United States
Open access status: An open access version is available from UCL Discovery
DOI: 10.1167/17.9.5
Publisher version: http://doi.org/10.1167/17.9.5
Language: English
Additional information: Copyright 2017 The Authors. This work is licensed under a Creative Commons Attribution 4.0 International License.
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences > Experimental Psychology
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Pop Health Sciences > UCL GOS Institute of Child Health
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Pop Health Sciences > UCL GOS Institute of Child Health > ICH Developmental Neurosciences Prog
URI: https://discovery.ucl.ac.uk/id/eprint/1571189
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