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Evaluation of closed-loop feedback system delay a time-critical perspective for neurofeedback training
Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.ORCID iD: 0000-0002-8174-1067
Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.
Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.ORCID iD: 0000-0003-4298-9550
2018 (English)In: BIODEVICES 2018 - 11th International Conference on Biomedical Electronics and Devices, Proceedings; Part of 11th International Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2018, SciTePress , 2018, p. 187-193Conference paper, Published paper (Refereed)
Abstract [en]

Neurofeedback in real-time has proven effective when subjects learn to control a BCI. To facilitate learning, a closed-loop feedback system should provide neurofeedback with maximal accuracy and minimal delay. In this article, we propose a modular system for real-time neurofeedback experiments and evaluate its performance as a function of increased stress level applied to the system. The system shows stable behavior and decent performance when streaming with many EEG channels (36-72) and 500-5000 Hz, which is common in BCI setups. With very low data loads (1 channel, 500-1000 Hz) the performance dropped significantly and the system became highly unpredictable. We show that the system delays did not correlate linearly with the stress-level applied to the system, emphasizing the importance of system delay tests before conducting real-time BCI-experiments. 

Place, publisher, year, edition, pages
SciTePress , 2018. p. 187-193
National Category
Medical Engineering
Identifiers
URN: urn:nbn:se:mdh:diva-40554Scopus ID: 2-s2.0-85051747504ISBN: 9789897582776 (print)OAI: oai:DiVA.org:mdh-40554DiVA, id: diva2:1243117
Conference
11th International Conference on Biomedical Electronics and Devices, BIODEVICES 2018 - Part of 11th International Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2018; Funchal, Madeira; Portugal; 19 January 2018 through 21 January 2018
Available from: 2018-08-30 Created: 2018-08-30 Last updated: 2018-08-30Bibliographically approved

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Tidare, JonatanÅstrand, ElaineEkström, Martin C.

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CiteExportLink to record
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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf