학술논문

Bayesian reconstruction of memories stored in neural networks from their connectivity.
Document Type
article
Source
PLoS Computational Biology, Vol 19, Iss 1, p e1010813 (2023)
Subject
Biology (General)
QH301-705.5
Language
English
ISSN
1553-734X
1553-7358
Abstract
The advent of comprehensive synaptic wiring diagrams of large neural circuits has created the field of connectomics and given rise to a number of open research questions. One such question is whether it is possible to reconstruct the information stored in a recurrent network of neurons, given its synaptic connectivity matrix. Here, we address this question by determining when solving such an inference problem is theoretically possible in specific attractor network models and by providing a practical algorithm to do so. The algorithm builds on ideas from statistical physics to perform approximate Bayesian inference and is amenable to exact analysis. We study its performance on three different models, compare the algorithm to standard algorithms such as PCA, and explore the limitations of reconstructing stored patterns from synaptic connectivity.