Abstract
We investigate the noise reduction performance for event related optical signal (EROS) measured from 5-channel near-infrared spectroscopy to reduce noise by using grand average and independent component analysis (ICA)-based Kalman filter. Episodic memory retrieval task was performed and expected to show brain activity around 500 ms from right prefrontal cortex. We verified that positive deviation in response to old word occurred around 500 ms using grand average for three subjects. After applying ICA-based Kalman filter on data from each subject, the clear positive deviation was shown graphically. Also, the ratio of positively deviated epoch in response to old word increased by 14 % after ICA-based Kalman filtering.
Original language | English |
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Title of host publication | ICCAS 2015 - 2015 15th International Conference on Control, Automation and Systems, Proceedings |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Pages | 380-382 |
Number of pages | 3 |
ISBN (Electronic) | 9788993215090 |
DOIs | |
Publication status | Published - 2015 Dec 23 |
Event | 15th International Conference on Control, Automation and Systems, ICCAS 2015 - Busan, Korea, Republic of Duration: 2015 Oct 13 → 2015 Oct 16 |
Other
Other | 15th International Conference on Control, Automation and Systems, ICCAS 2015 |
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Country/Territory | Korea, Republic of |
City | Busan |
Period | 15/10/13 → 15/10/16 |
Keywords
- Episodic memory
- Event related optical signal
- Independent component analysis
- Kalman filter
- Memory retrieval task
- Near-infrared spectroscopy
ASJC Scopus subject areas
- Control and Systems Engineering