Imperial College London
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ProfessorDarioFarina

Faculty of Engineering, Department of Bioengineering

Chair in Neurorehabilitation Engineering
 
 
 
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Contact

 

+44 (0)20 7594 1387d.farina Website

 
 
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Location

 

RSM 4.15Royal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Aliakbaryhosseinabadi:2016:10.1016/j.clinph.2016.11.001,
author = {Aliakbaryhosseinabadi, S and Kostic, V and Pavlovic, A and Radovanovic, S and Nlandu, Kamavuako E and Jiang, N and Petrini, L and Dremstrup, K and Farina, D and Mrachacz-Kersting, N},
doi = {10.1016/j.clinph.2016.11.001},
journal = {Clinical Neurophysiology},
pages = {165--175},
title = {Influence of attention alternation on movement-related cortical potentials in healthy individuals and stroke patients.},
url = {http://dx.doi.org/10.1016/j.clinph.2016.11.001},
volume = {128},
year = {2016}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - OBJECTIVE: In this study, we analyzed the influence of artificially imposed attention variations using the auditory oddball paradigm on the cortical activity associated to motor preparation/execution. METHODS: EEG signals from Cz and its surrounding channels were recorded during three sets of ankle dorsiflexion movements. Each set was interspersed with either a complex or a simple auditory oddball task for healthy participants and a complex auditory oddball task for stroke patients. RESULTS: The amplitude of the movement-related cortical potentials (MRCPs) decreased with the complex oddball paradigm, while MRCP variability increased. Both oddball paradigms increased the detection latency significantly (p<0.05) and the complex paradigm decreased the true positive rate (TPR) (p=0.04). In patients, the negativity of the MRCP decreased while pre-phase variability increased, and the detection latency and accuracy deteriorated with attention diversion. CONCLUSION: Attention diversion has a significant influence on MRCP features and detection parameters, although these changes were counteracted by the application of the laplacian method. SIGNIFICANCE: Brain-computer interfaces for neuromodulation that use the MRCP as the control signal are robust to changes in attention. However, attention must be monitored since it plays a key role in plasticity induction. Here we demonstrate that this can be achieved using the single channel Cz.
AU  - Aliakbaryhosseinabadi,S
AU  - Kostic,V
AU  - Pavlovic,A
AU  - Radovanovic,S
AU  - Nlandu,Kamavuako E
AU  - Jiang,N
AU  - Petrini,L
AU  - Dremstrup,K
AU  - Farina,D
AU  - Mrachacz-Kersting,N
DO  - 10.1016/j.clinph.2016.11.001
EP  - 175
PY  - 2016///
SN  - 1872-8952
SP  - 165
TI  - Influence of attention alternation on movement-related cortical potentials in healthy individuals and stroke patients.
T2  - Clinical Neurophysiology
UR  - http://dx.doi.org/10.1016/j.clinph.2016.11.001
UR  - http://www.ncbi.nlm.nih.gov/pubmed/27912170
UR  - http://hdl.handle.net/10044/1/48158
VL  - 128
ER  -
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