Abstract

Accounts of predictive processing propose that conscious experience is influenced not only by passive predictions about the world, but also by predictions encompassing how the world changes in relation to our actions—that is, on predictions about sensorimotor contingencies. We tested whether valid sensorimotor predictions, in particular learned associations between stimuli and actions, shape reports about conscious visual experience. Two experiments used instrumental conditioning to build sensorimotor predictions linking different stimuli with distinct actions. Conditioning was followed by a breaking continuous flash suppression task, measuring the speed of reported breakthrough for different pairings between the stimuli and prepared actions, comparing those congruent and incongruent with the trained sensorimotor predictions. In Experiment 1, counterbalancing of the response actions within the breaking continuous flash suppression task was achieved by repeating the same action within each block but having them differ across the two blocks. Experiment 2 sought to increase the predictive salience of the actions by avoiding the repetition within blocks. In Experiment 1, breakthrough times were numerically shorter for congruent than incongruent pairings, but Bayesian analysis supported the null hypothesis of no influence from the sensorimotor predictions. In Experiment 2, reported conscious perception was significantly faster for congruent than for incongruent pairings. A meta-analytic Bayes factor combining the two experiments confirmed this effect. Altogether, we provide evidence for a key implication of the action-oriented predictive processing approach to conscious perception, namely that sensorimotor predictions shape our conscious experience of the world.

Highlights

  • A growing body of experimental work, rooted in the predictive processing framework (Clark, 2013; Hohwy, 2013, 2020; Rao & Ballard, 1999), shows that perceptual experiences are influenced by beliefs or predictions about the world

  • Conclusions of Experiment 1 In Experiment 1, we investigated whether valid sensorimotor predictions, built through instrumental conditioning, can affect conscious experience, operationalised in terms of reportable access to consciousness in breaking interocular suppression

  • If sensorimotor predictions shape conscious experience, we hypothesised that congruency between the cue and the prepared action would result in the cue breaking through CFS faster

Read more

Summary

Introduction

A growing body of experimental work, rooted in the predictive processing framework (Clark, 2013; Hohwy, 2013, 2020; Rao & Ballard, 1999), shows that perceptual experiences are influenced by beliefs or predictions about the world. Within the predictive processing framework, predictions are instantiated by probabilistic generative models, encoded in cortical hierarchies. Incoming sensory signals, such as visual input, are compared against descending predictions to give rise to prediction errors (PEs) at each hierarchical level of processing. Minimization of PEs across hierarchical levels implements an approximation to Bayesian inference on the causes of sensory signals. In this framework, conscious sensory experience has been proposed to reflect the perceptual prediction that best suppresses PEs Conscious experience is shaped, or constituted, by the posterior prediction that ‘best’ predicts the (hidden) causes of sensory signals

Results
Discussion
Conclusion
Full Text
Published version (Free)

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call