Dynamic branching in a neural network model for probabilistic prediction of sequences

• Published in: Journal of computational neuroscience Vol. 50; no. 4; pp. 537 - 557
• Main Authors: Köksal Ersöz, Elif, Chossat, Pascal, Krupa, Martin, Lavigne, Frédéric
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.11.2022; Springer Nature B.V; Springer Verlag
• Subjects: Biomedical and Life Sciences; Biomedicine; Cognitive Sciences; Computational neuroscience; Dynamical Systems; Effectiveness; Human Genetics; Life Sciences; Mathematics; Models, Neurological; Neural Inhibition - physiology; Neural networks; Neural Networks, Computer; Neurology; Neurons - physiology; Neurons and Cognition; Neurosciences; Original Article; Predictions; Probability; Sequences; Statistical analysis; Synapses - physiology; Synaptic depression; Synaptic strength; Theory of Computation; Slow-fast dynamics; Local inhibition; Neuronal gain; Short-term depression; Latching dynamics
• ISSN: 0929-5313; 1573-6873
• DOI: 10.1007/s10827-022-00830-y

An important function of the brain is to predict which stimulus is likely to occur based on the perceived cues. The present research studied the branching behavior of a computational network model of populations of excitatory and inhibitory neurons, both analytically and through simulations. Results show how synaptic efficacy, retroactive inhibition and short-term synaptic depression determine the dynamics of selection between different branches predicting sequences of stimuli of different probabilities. Further results show that changes in the probability of the different predictions depend on variations of neuronal gain. Such variations allow the network to optimize the probability of its predictions to changing probabilities of the sequences without changing synaptic efficacy.