Adaptive coding for dynamic sensory inference.

Clicks: 342
ID: 79948
2018
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Abstract
Behavior relies on the ability of sensory systems to infer properties of the environment from incoming stimuli. The accuracy of inference depends on the fidelity with which behaviorally relevant properties of stimuli are encoded in neural responses. High-fidelity encodings can be metabolically costly, but low-fidelity encodings can cause errors in inference. Here, we discuss general principles that underlie the tradeoff between encoding cost and inference error. We then derive adaptive encoding schemes that dynamically navigate this tradeoff. These optimal encodings tend to increase the fidelity of the neural representation following a change in the stimulus distribution, and reduce fidelity for stimuli that originate from a known distribution. We predict dynamical signatures of such encoding schemes and demonstrate how known phenomena, such as burst coding and firing rate adaptation, can be understood as hallmarks of optimal coding for accurate inference.
Reference Key
mynarski2018adaptiveelife Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Młynarski, Wiktor F;Hermundstad, Ann M;
Journal eLife
Year 2018
DOI
10.7554/eLife.32055
URL
Keywords
none perception adaptation neural dynamics neuroscience bayesian inference efficient coding normative theories

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