Imperial College London
Portrait Picture

Professor Timothy Constandinou

Faculty of Engineering, Department of Electrical and Electronic Engineering

Professor of Bioelectronics
 
 
 
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Contact

 

+44 (0)20 7594 0790t.constandinou Website

 
 
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Assistant

 

Miss Izabela Wojcicka-Grzesiak +44 (0)20 7594 0701

 
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Location

 

B407Bessemer BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Ahmadi:2022:10.1109/ACCESS.2022.3159225,
author = {Ahmadi, N and Adiono, T and Purwarianti, A and Constandinou, T and Bouganis, C},
doi = {10.1109/ACCESS.2022.3159225},
journal = {IEEE Access},
pages = {29341--29356},
title = {Improved spike-based brain-machine interface using bayesian adaptive kernel smoother and deep learning},
url = {http://dx.doi.org/10.1109/ACCESS.2022.3159225},
volume = {10},
year = {2022}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Multiunit activity (MUA) has been proposed to mitigate the robustness issue faced by single-unit activity (SUA)-based brain-machine interfaces (BMIs). Most MUA-based BMIs still employ a binning method for estimating firing rates and linear decoder for decoding behavioural parameters. The limitations of binning and linear decoder lead to suboptimal performance of MUA-based BMIs. To address this issue, we propose a method which consists of Bayesian adaptive kernel smoother (BAKS) as the firing rate estimation algorithm and deep learning, particularly quasi-recurrent neural network (QRNN), as the decoding algorithm. We evaluated the proposed method for reconstructing (offline) hand kinematics from intracortical neural data chronically recorded from the primary motor cortex of two non-human primates. Extensive empirical results across recording sessions and subjects showed that the proposed method consistently outperforms other combinations of firing rate estimation algorithm and decoding algorithm. Overall results suggest the effectiveness of the proposed method for improving the decoding performance of MUA-based BMIs.
AU  - Ahmadi,N
AU  - Adiono,T
AU  - Purwarianti,A
AU  - Constandinou,T
AU  - Bouganis,C
DO  - 10.1109/ACCESS.2022.3159225
EP  - 29356
PY  - 2022///
SN  - 2169-3536
SP  - 29341
TI  - Improved spike-based brain-machine interface using bayesian adaptive kernel smoother and deep learning
T2  - IEEE Access
UR  - http://dx.doi.org/10.1109/ACCESS.2022.3159225
UR  - http://hdl.handle.net/10044/1/96120
VL  - 10
ER  -
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