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A Bayesian and efficient observer model explains concurrent attractive and repulsive history biases in visual perception

Matthias Fritsche, Eelke Spaak, Floris P. de Lange
doi: https://doi.org/10.1101/2020.01.22.915553
Matthias Fritsche
Donders Institute for Brain, Cognition and Behaviour, Radboud University, Kapittelweg 29, 6525 EN Nijmegen, the Netherlands
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  • For correspondence: m.fritsche@donders.ru.nl
Eelke Spaak
Donders Institute for Brain, Cognition and Behaviour, Radboud University, Kapittelweg 29, 6525 EN Nijmegen, the Netherlands
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Floris P. de Lange
Donders Institute for Brain, Cognition and Behaviour, Radboud University, Kapittelweg 29, 6525 EN Nijmegen, the Netherlands
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Abstract

Perceptual decisions can be repelled away from (repulsive adaptation) or attracted towards recent visual experience (attractive serial dependence). It is currently unclear whether and how these repulsive and attractive biases interact during visual processing and what computational principles may underlie these history dependencies. In the current study, we disentangle repulsive and attractive biases by exploring the respective timescales over which current visual processing is influenced by previous experience. Across four experiments, we find that perceptual decisions about stimulus orientation are concurrently attracted towards the short-term perceptual history and repelled from stimuli experienced up to minutes into the past. We show that the temporal pattern of short-term attraction and long-term repulsion cannot be captured by an ideal Bayesian observer model alone. Instead, it is well captured by an ideal observer model with efficient encoding and Bayesian decoding of visual information in a slowly changing environment. Concurrent attractive and repulsive history biases in perceptual decisions may thus be the consequence of the need for visual processing to simultaneously satisfy constraints of both efficiency and stability.

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The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-NC-ND 4.0 International license.
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Posted January 23, 2020.
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A Bayesian and efficient observer model explains concurrent attractive and repulsive history biases in visual perception
Matthias Fritsche, Eelke Spaak, Floris P. de Lange
bioRxiv 2020.01.22.915553; doi: https://doi.org/10.1101/2020.01.22.915553
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A Bayesian and efficient observer model explains concurrent attractive and repulsive history biases in visual perception
Matthias Fritsche, Eelke Spaak, Floris P. de Lange
bioRxiv 2020.01.22.915553; doi: https://doi.org/10.1101/2020.01.22.915553

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