Steady State Visual Evoked Potential Based Brain-Computer Interface for Cognitive Assessment

Nicolai Westergren, Rasmus L. Bendtsen, Troels W. Kjær, Carsten Eckhart Thomsen, Sadasivan Puthusserypady, Helge Bjarup Dissing Sørensen

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

Cognitive assessment is of growing importance, with the general population getting older and a rapidly growing incidence of dementia, which is a major public health issue. Treatment of dementia must, to be most effective, start early in the disease process. Thus, early detection of cognitive decline is important. Cognitive decline may be detected using fullyautomated computerized assessment. Such systems will provide inexpensive and widely available screenings of cognitive ability. The aim of this pilot study is to develop a real time steady state visual evoked potential (SSVEP) based brain-computer interface (BCI) for neurological cognitive assessment. It is intended for use by patients who suffer from diseases impairing
their motor skills, but are still able to control their gaze. Results are based on 11 healthy test subjects. The system performance have an average accuracy of 100% ± 0%. The test subjects achieved an information transfer rate (ITR) of 14:64 bits/min ± 7:63 bits=min and a subject test performance of 47:22% ± 34:10%. This study suggests that BCI may be applicable in practice as a computerized cognitive assessment tool. However, many improvements are required for the system to be fully valid and of clinical use.
Original languageEnglish
Title of host publicationProceedings of 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
PublisherIEEE
Publication date2016
Pages1508-1511
Article numberWeCT8.7
ISBN (Print)978-1-4577-0220-4
DOIs
Publication statusPublished - 2016
Event38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC’16) - Orlando, FL, United States
Duration: 16 Aug 201620 Aug 2016
Conference number: 38
http://embc.embs.org/2016/

Conference

Conference38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC’16)
Number38
Country/TerritoryUnited States
CityOrlando, FL
Period16/08/201620/08/2016
Internet address

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