PMID-15858046[0] Redundancy and synergy of neuronal ensembles in motor cortex.
- Reaction time task.
- Neurons that were the best individual predictors of task performance were not necessarily the neurons that contributed the most predictive information to an ensemble of neurons.
- Small ensembles [of neurons] could exhibit synergistic interactions (e.g., 23 +/- 9% of ensembles with two neurons were synergistic).
- In contrast, larger ensembles exhibited mostly redundant interactions (e.g., 99 +/- 0.1% of ensembles with eight neurons were redundant).
- Possible interpretation: redundancy enables robustness.
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[0] Narayanan NS, Kimchi EY, Laubach M, Redundancy and synergy of neuronal ensembles in motor cortex.J Neurosci 25:17, 4207-16 (2005 Apr 27) |
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