Cited by 92Embodied and Extended CognitionVisual perception and processing mechanismsPhilosophy and Theoretical Science

Perceptual awareness and active inference

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Parr, Thomas, Corcoran, Andrew W, Friston, Karl J, Hohwy, Jakob·2019·Neuroscience of Consciousness

Abstract

Perceptual awareness depends upon the way in which we engage with our sensorium. This notion is central to active inference, a theoretical framework that treats perception and action as inferential processes. This variational perspective on cognition formalizes the notion of perception as hypothesis testing and treats actions as experiments that are designed (in part) to gather evidence for or against alternative hypotheses. The common treatment of perception and action affords a useful interpretation of certain perceptual phenomena whose active component is often not acknowledged. In this article, we start by considering Troxler fading – the dissipation of a peripheral percept during maintenance of fixation, and its recovery during free (saccadic) exploration. This offers an important example of the failure to maintain a percept without actively interrogating a visual scene. We argue that this may be understood in terms of the accumulation of uncertainty about a hypothesized stimulus when free exploration is disrupted by experimental instructions or pathology. Once we take this view, we can generalize the idea of using bodily (oculomotor) action to resolve uncertainty to include the use of mental (attentional) actions for the same purpose. This affords a useful way to think about binocular rivalry paradigms, in which perceptual changes need not be associated with an overt movement.

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  • The notion of mental action -in which covert attentional policies are selected in a way analogous to those driving overt behaviour -highlights the fundamental explanatory role of such executive processes as attentional regulation (i.e., precision-optimisation) and decision-making (i.e., planning-as-inference) in AI-C.

    “However, the notion of mental action -in which covert attentional policies are selected in a way analogous to those driving overt behaviour (Limanowski & Friston, 2018; Parr, Corcoran, et al., 2019) -highlights the fundamental explanatory role of such executive processes as attentional regulation (i.e., precision-optimisation) and decision-making (i.e., planning-as-inference) in AI-C.”

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Research works printed but not linked: 2

  1. Clark A. Beyond the ‘Bayesian Blur’. J Consciousness Stud 2018; 25: 71– 87.
  2. Haynes J-D, Deichmann R, Rees G. Eye-specific suppression in human LGN reflects perceptual dominance during binocular rivalry. Nature 2005; 438: 496– 9. 16244649 PMC1351280

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Authors
Parr, T., Corcoran, A. W., Friston, K. J., & Hohwy, J.
Affiliations
  • Wellcome Centre for Human Neuroimaging (GB)
  • Monash University (AU)
Corresponding author
Parr, Thomas
Venue
Neuroscience of Consciousness
Published
2019-01-01
Volume
2019
Issue
1
Pages
niz012-niz012
ISSN
2057-2107 (ISSN-L)
OpenAlex
W2973013188
Cited by
91
References
134
Citations by year
2026: 9 · 2025: 13 · 2024: 13 · 2023: 16 · 2022: 12 · 2021: 14 · 2020: 12 · 2019: 1 · 2018: 1
FWCI
5.67
Type
journal article
Language
en
Open access
Locations
  • Neuroscience of Consciousness (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Monash University Research Portal (Monash University) (submittedVersion, other-oa)
  • UCL Discovery (University College London) (submittedVersion)
Funders
  • Rosetrees Trust (173346)
  • Australian Government Research Training Program
  • RTP
  • Wellcome Principal Research Fellow (088130/Z/09/Z)
  • Australian Research Council (DP160102770, DP190101805)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Embodied and Extended Cognition
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Philosophy and Theoretical Science
Keywords
perceptual awareness, active inference, perceptual uncertainty, saccades, attention, binocular rivalry, perception-action coupling, hypothesis testing, free exploration, visual perception

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