Neural spiking for causal inference and learning.
When a neuron is driven beyond its threshold, it spikes. The fact that it does not communicate its continuous membrane potential is usually seen as a computational liability. Here we show that this spiking mechanism allows neurons to produce an unbiased estimate of their causal influence, and a way...
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2023-04-01
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| Series: | PLoS Computational Biology |
| Online Access: | https://journals.plos.org/ploscompbiol/article/file?id=10.1371/journal.pcbi.1011005&type=printable |
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| _version_ | 1832595662608269312 |
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| author | Benjamin James Lansdell Konrad Paul Kording |
| author_facet | Benjamin James Lansdell Konrad Paul Kording |
| author_sort | Benjamin James Lansdell |
| collection | DOAJ |
| description | When a neuron is driven beyond its threshold, it spikes. The fact that it does not communicate its continuous membrane potential is usually seen as a computational liability. Here we show that this spiking mechanism allows neurons to produce an unbiased estimate of their causal influence, and a way of approximating gradient descent-based learning. Importantly, neither activity of upstream neurons, which act as confounders, nor downstream non-linearities bias the results. We show how spiking enables neurons to solve causal estimation problems and that local plasticity can approximate gradient descent using spike discontinuity learning. |
| format | Article |
| id | doaj-art-1ad52e71fa974d33a6e506f794398dcc |
| institution | Kabale University |
| issn | 1553-734X 1553-7358 |
| language | English |
| publishDate | 2023-04-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS Computational Biology |
| spelling | doaj-art-1ad52e71fa974d33a6e506f794398dcc2025-01-18T05:30:48ZengPublic Library of Science (PLoS)PLoS Computational Biology1553-734X1553-73582023-04-01194e101100510.1371/journal.pcbi.1011005Neural spiking for causal inference and learning.Benjamin James LansdellKonrad Paul KordingWhen a neuron is driven beyond its threshold, it spikes. The fact that it does not communicate its continuous membrane potential is usually seen as a computational liability. Here we show that this spiking mechanism allows neurons to produce an unbiased estimate of their causal influence, and a way of approximating gradient descent-based learning. Importantly, neither activity of upstream neurons, which act as confounders, nor downstream non-linearities bias the results. We show how spiking enables neurons to solve causal estimation problems and that local plasticity can approximate gradient descent using spike discontinuity learning.https://journals.plos.org/ploscompbiol/article/file?id=10.1371/journal.pcbi.1011005&type=printable |
| spellingShingle | Benjamin James Lansdell Konrad Paul Kording Neural spiking for causal inference and learning. PLoS Computational Biology |
| title | Neural spiking for causal inference and learning. |
| title_full | Neural spiking for causal inference and learning. |
| title_fullStr | Neural spiking for causal inference and learning. |
| title_full_unstemmed | Neural spiking for causal inference and learning. |
| title_short | Neural spiking for causal inference and learning. |
| title_sort | neural spiking for causal inference and learning |
| url | https://journals.plos.org/ploscompbiol/article/file?id=10.1371/journal.pcbi.1011005&type=printable |
| work_keys_str_mv | AT benjaminjameslansdell neuralspikingforcausalinferenceandlearning AT konradpaulkording neuralspikingforcausalinferenceandlearning |