A new method for mapping perceptual biases across visual space

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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.

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APA

Finlayson, N. J., Papageorgiou, A., & Samuel Schwarzkopf, D. (2017). A new method for mapping perceptual biases across visual space. Journal of Vision, 17(9). https://doi.org/10.1167/17.9.5

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