Journal
IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING
Volume 51, Issue 6, Pages 954-962Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TBME.2004.826671
Keywords
brain computer interface; direct brain interface (DBI); electrocorticogram; event-related desynchronization; event-related potential; wavelet-packet analysis
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Funding
- NINDS NIH HHS [1 R01 NS40681-01] Funding Source: Medline
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Highly accurate asynchronous detection of movement related patterns in individual electrocorticogram channels has been shown using detection based on either event-related potentials (ERPs) or event-related desynchronization and synchronization (ERD/ERS). A method using wavelet-packet features selected with a genetic algorithm was proposed to simultaneously detect ERP and ERD/ERS and was tested on data from seven subjects and four motor tasks. The proposed wavelet method performed better than previous methods with perfect detection for four subject/task combinations and hit percentages greater than 90% with false positive percentages less than 15% for at least one task for all seven subjects.
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