Differences in the critical dynamics underlying the human and fruit-fly connectome
Previous simulation studies on human connectomes suggested that critical dynamics emerge subcritically in the so-called Griffiths phases. Now we investigate this on the largest available brain network, the 21662 node fruit-fly connectome, using the Kuramoto synchronization model. As this graph is le...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2022-04-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.4.023057 |
| _version_ | 1797210813513072640 |
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| author | Géza Ódor Gustavo Deco Jeffrey Kelling |
| author_facet | Géza Ódor Gustavo Deco Jeffrey Kelling |
| author_sort | Géza Ódor |
| collection | DOAJ |
| description | Previous simulation studies on human connectomes suggested that critical dynamics emerge subcritically in the so-called Griffiths phases. Now we investigate this on the largest available brain network, the 21662 node fruit-fly connectome, using the Kuramoto synchronization model. As this graph is less heterogeneous, lacking modular structure and exhibiting high topological dimension, we expect a difference from the previous results. Indeed, the synchronization transition is mean-field-like, and the width of the transition region is larger than in random graphs, but much smaller than as for the KKI-18 human connectome. This demonstrates the effect of modular structure and dimension on the dynamics, providing a basis for better understanding the complex critical dynamics of humans. |
| first_indexed | 2024-04-24T10:16:33Z |
| format | Article |
| id | doaj.art-b7b69b9b7ad844d59f1d0baac617d89d |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:16:33Z |
| publishDate | 2022-04-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-b7b69b9b7ad844d59f1d0baac617d89d2024-04-12T17:20:05ZengAmerican Physical SocietyPhysical Review Research2643-15642022-04-014202305710.1103/PhysRevResearch.4.023057Differences in the critical dynamics underlying the human and fruit-fly connectomeGéza ÓdorGustavo DecoJeffrey KellingPrevious simulation studies on human connectomes suggested that critical dynamics emerge subcritically in the so-called Griffiths phases. Now we investigate this on the largest available brain network, the 21662 node fruit-fly connectome, using the Kuramoto synchronization model. As this graph is less heterogeneous, lacking modular structure and exhibiting high topological dimension, we expect a difference from the previous results. Indeed, the synchronization transition is mean-field-like, and the width of the transition region is larger than in random graphs, but much smaller than as for the KKI-18 human connectome. This demonstrates the effect of modular structure and dimension on the dynamics, providing a basis for better understanding the complex critical dynamics of humans.http://doi.org/10.1103/PhysRevResearch.4.023057 |
| spellingShingle | Géza Ódor Gustavo Deco Jeffrey Kelling Differences in the critical dynamics underlying the human and fruit-fly connectome Physical Review Research |
| title | Differences in the critical dynamics underlying the human and fruit-fly connectome |
| title_full | Differences in the critical dynamics underlying the human and fruit-fly connectome |
| title_fullStr | Differences in the critical dynamics underlying the human and fruit-fly connectome |
| title_full_unstemmed | Differences in the critical dynamics underlying the human and fruit-fly connectome |
| title_short | Differences in the critical dynamics underlying the human and fruit-fly connectome |
| title_sort | differences in the critical dynamics underlying the human and fruit fly connectome |
| url | http://doi.org/10.1103/PhysRevResearch.4.023057 |
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