Rate-distortion theory of neural coding and its implications for working memory
Anthony M.V. Jakob, Samuel J. Gershman
Abstract
Rate-distortion theory provides a powerful framework for understanding the nature of human memory by formalizing the relationship between information rate (the average number of bits per stimulus transmitted across the memory channel) and distortion (the cost of memory errors). Here, we show how this abstract computational-level framework can be realized by a model of neural population coding. The model reproduces key regularities of visual working memory, including some that were not previously explained by population coding models. We verify a novel prediction of the model by reanalyzing recordings of monkey prefrontal neurons during an oculomotor delayed response task.
Topics & Concepts
Coding (social sciences)Computer scienceWorking memoryNeural codingRate distortionStimulus (psychology)Rate–distortion theoryPopulationPredictive codingArtificial intelligenceTheoretical computer scienceNeuroscienceCognitive psychologyPsychologyCognitionMathematicsData compressionStatisticsSociologyDemographyNeural dynamics and brain functionAdvanced Memory and Neural ComputingMemory and Neural Mechanisms