NDLI: Attitude of the subject towards feedback and its implications for BCI use in neurorehabilitation

Content Provider	IEEE Xplore Digital Library
Author	Carabalona, R.
Copyright Year	2010
Description	Author affiliation: Biomedical Technological Department, Don Gnocchi Foundation, Milan, Italy (Carabalona, R.)
Abstract	Brain-Computer Interface (BCI) systems allow user to operate devices without muscular activation and experimental results indicate that they can induce activity-dependent plasticity. A BCI system has two key features: exploitation of brain signal changes induced by the cognitive task assigned to the user and mutual learning. With respect to the first feature, BCI users can learn to control and hence change their cortical activity, for example by performing a motor imagery task. Mutual learning, on the other hand, is set up between users, which have to learn how to control their brain activity, and the classifier used for learning and categorize brain signal changes. This mutual learning can be mediated by the use of feedback, which in turn can be discrete or continuous, abstract or realistic and so on. Motor imagery represents a promising approach for stroke rehabilitation, thus a BCI based on a motor imagery paradigm could be a useful tool. Nevertheless, in stroke rehabilitation settings two issues are emerging which are also crucial for motor imagery BCIs. The first one relates to the importance of recognize the imagery ability of the subject, the second one to the importance of feedback in re-learning of motor skills. The present study relates to this second issue and it is aimed at investigating attitudes of BCI users towards feedback. We considered a sample of six healthy males, using an EEG-based BCI and executing a Motor Imagery task without feedback (training phase) and with feedback (performance phase). A horizontal bar of varying length depicted on a computer screen was used as feedback medium and overall accuracy data were matched with neurophysiological data acquired from Pz and Oz. Results could be of importance for BCI use as neurorehabilitation tool in stroke rehabilitation protocols since they suggest that some subjects could need an increased cortical activation in order to deal with a stimulus like visual feedback. Moreover, they reveal a possible association between worsening in performance and increased cortical activation needed in order to cope with feedback.
Starting Page	1
Ending Page	4
File Size	711564
Page Count	4
File Format	PDF
ISBN	9781424481316
e-ISBN	9781424481323
DOI	10.1109/ISABEL.2010.5702880
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-11-07
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Visualization Brain Protocols EEG Time frequency analysis motor imagery Electroencephalography Brain-Computer Interface (BCI) neurorehabilitation Training feedback Accuracy alpha rhythm
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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