Multifractality in critical neural field dynamics
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arXiv
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| Auteurs principaux: | , , , |
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| Format: | Preprint |
| Publié: |
2023
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| _version_ | 1866910006813655040 |
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| author | Dumeur, Merlin Wang, Sheng H. Palva, J. Matias Ciuciu, Philippe |
| author_facet | Dumeur, Merlin Wang, Sheng H. Palva, J. Matias Ciuciu, Philippe |
| contents | The brain criticality hypothesis has largely only characterized brain dynamics in terms of their self-similarity, although experimental evidence suggests that the brain exhibits significant multifractality. To understand how multifractality may emerge in critical-like systems modeling neuronal activity, we used a neural field model exhibiting neural oscillations and a critical phase transition. We find that multifractality emerges near a synchronization phase transition, and that the pattern of variation of multifractality changes when placing the model at a different phase transition. These findings show that multifractality in temporal dynamics emerges near criticality in neural fields, providing a formal basis for interpreting multifractality in brain recordings. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_03219 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Multifractality in critical neural field dynamics Dumeur, Merlin Wang, Sheng H. Palva, J. Matias Ciuciu, Philippe Disordered Systems and Neural Networks The brain criticality hypothesis has largely only characterized brain dynamics in terms of their self-similarity, although experimental evidence suggests that the brain exhibits significant multifractality. To understand how multifractality may emerge in critical-like systems modeling neuronal activity, we used a neural field model exhibiting neural oscillations and a critical phase transition. We find that multifractality emerges near a synchronization phase transition, and that the pattern of variation of multifractality changes when placing the model at a different phase transition. These findings show that multifractality in temporal dynamics emerges near criticality in neural fields, providing a formal basis for interpreting multifractality in brain recordings. |
| title | Multifractality in critical neural field dynamics |
| topic | Disordered Systems and Neural Networks |
| url | https://arxiv.org/abs/2312.03219 |