PMID- 12465239
OWN - NLM
STAT- MEDLINE
DCOM- 20030313
LR  - 20190916
IS  - 0013-5585 (Print)
IS  - 0013-5585 (Linking)
VI  - 47 Suppl 1 Pt 2
DP  - 2002
TI  - [Improving SNR (signal to noise ratio) in multichannel EEG recording].
PG  - 566-9
AB  - The main problem in measurements of the focal VEP (Visual Evoked Potential) is 
      its weak SNR (Signal-to-Noise Ratio). The most common method for enhancement of 
      the SNR is the stimulus synchronized averaging. For study of single responses 
      other ways in SNR improvement are needed. In this contribution a new method based 
      on space-time selective measurement is introduced, which can be interpreted as 
      beaming a signal source. Since the anatomical structures of sources generating 
      the focal VEP are known in general and if the electrode positions are of 
      sufficient density over the visual cortex, a source beamer can be realized by 
      controlling the channels' delays.
FAU - Husar, P
AU  - Husar P
AD  - Institut fur Biomedizinische Technik und Informatik, Technische Universitat 
      Ilmenau, Deutschland. peter.husar@tu-ilmenau.de
FAU - Berkes, S
AU  - Berkes S
FAU - Gotze, A
AU  - Gotze A
FAU - Henning, G
AU  - Henning G
FAU - Plagwitz, K U
AU  - Plagwitz KU
LA  - ger
PT  - English Abstract
PT  - Journal Article
TT  - Verbesserung des SNR bei mehrkanaligen EEG-Ableitungen.
PL  - Germany
TA  - Biomed Tech (Berl)
JT  - Biomedizinische Technik. Biomedical engineering
JID - 1262533
SB  - IM
MH  - Algorithms
MH  - *Artifacts
MH  - Electroencephalography/*instrumentation
MH  - Evoked Potentials, Visual/*physiology
MH  - Humans
MH  - Signal Processing, Computer-Assisted/*instrumentation
MH  - Visual Cortex/physiology
EDAT- 2002/12/06 04:00
MHDA- 2003/03/14 04:00
CRDT- 2002/12/06 04:00
PHST- 2002/12/06 04:00 [pubmed]
PHST- 2003/03/14 04:00 [medline]
PHST- 2002/12/06 04:00 [entrez]
AID - 10.1515/bmte.2002.47.s1b.566 [doi]
PST - ppublish
SO  - Biomed Tech (Berl). 2002;47 Suppl 1 Pt 2:566-9. doi: 
      10.1515/bmte.2002.47.s1b.566.