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- W4387498226 abstract "Decoders for brain-computer interfaces (BCIs) assume constraints on neural activity, chosen to reflect scientific beliefs while yielding tractable computations. We document how low tangling – a typical property of motor-cortex neural trajectories – yields unusual neural geometries. We designed a decoder, MINT, to embrace statistical constraints that are appropriate for these geometries. MINT takes a trajectory-centric approach: a library of neural trajectories (rather than a set of neural dimensions) provides a scaffold approximating the neural manifold. Each neural trajectory has a corresponding behavioral trajectory, allowing straightforward but highly nonlinear decoding. MINT consistently outperformed other interpretable methods, and outperformed expressive machine learning methods in 37 of 42 comparisons. Yet unlike these expressive methods, MINT’s constraints are known rather than the implicit result of optimizing decoder output. MINT performed well across tasks, suggesting its assumptions are generally well-matched to the statistics of neural data. Despite embracing highly nonlinear relationships between behavior and potentially complex neural trajectories, MINT’s computations are simple, scalable, and provide interpretable quantities such as data likelihoods. MINT’s performance and simplicity suggest it may be an excellent candidate for clinical BCI applications." @default.
- W4387498226 created "2023-10-11" @default.
- W4387498226 date "2023-10-10" @default.
- W4387498226 modified "2023-10-11" @default.
- W4387498226 title "Reviewer #2 (Public Review): Simple decoding of behavior from a complicated neural manifold" @default.
- W4387498226 doi "https://doi.org/10.7554/elife.89421.1.sa2" @default.
- W4387498226 hasPublicationYear "2023" @default.
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