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Published, Version of Record (VoR)Open Access via Drexel Libraries Read and Publish Program 2024CC BY V4.0, Open
Journal article
Neuronal traveling waves form preferred pathways using synaptic plasticity
Journal of computational neuroscience
27 Dec 2024
PMID: 39729255
Featured in Collection : Research Supported by Drexel Libraries' OA Programs
Abstract
Traveling waves of neuronal spiking activity are commonly observed across the brain, but their intrinsic function is still a matter of investigation. Experiments suggest that they may be valuable in the consolidation of memory or learning, indicating that consideration of traveling waves in the presence of plasticity might be important. A possible outcome of this consideration is that the synaptic pathways, necessary for the propagation of these waves, will be modified by the waves themselves. This will create a feedback loop where both the traveling waves and the strengths of the available synaptic pathways will change. To computationally investigate this, we model a sheet of cortical tissue by considering a quasi two-dimensional network of model neurons locally connected with plastic synaptic weights using Spike-Timing Dependent Plasticity (STDP). By using different stimulation conditions (central, stochastic, and alternating stimulation), we demonstrate that starting from a random network, traveling waves with STDP will form and strengthen propagation pathways. With progressive formation of traveling waves, we observe increases in synaptic weight along the direction of wave propagation, increases in propagation speed when pathways are strengthened over time, and an increase in the local order of synaptic weights. We also present evidence that the interaction between traveling waves and plasticity can serve as a mechanism of network-wide competition between available pathways. With an improved understanding of the interactions between traveling waves and synaptic plasticity, we can approach a fuller understanding of mechanisms of learning, computation, and processing within the brain.
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Details
- Title
- Neuronal traveling waves form preferred pathways using synaptic plasticity
- Creators
- Kendall Butler - Department of Physics, Drexel University, 3141 Chestnut Street, Philadelphia, 19104, PA, USALuis Cruz (Corresponding Author) - Drexel University, Physics
- Publication Details
- Journal of computational neuroscience
- Publisher
- Springer Nature
- Number of pages
- 18
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Physics
- Web of Science ID
- WOS:001384997200001
- Scopus ID
- 2-s2.0-85213729817
- Other Identifier
- 991022007497604721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Mathematical & Computational Biology
- Neurosciences