|
11. |
A multichannel, model-free method for estimation of event-related potential amplitudes and its comparison with dipole source localization |
|
Journal of Medical Engineering&Technology,
Volume 19,
Issue 2-3,
1995,
Page 88-98
CardenasV. A.,
YinglingC. D.,
JewettD.,
FeinG.,
Preview
|
PDF (1188KB)
|
|
摘要:
We present a multichannel, model-free method for estimation of event-related potential (ERP) amplitude ratios and amplitudes using singular value decomposition (SVD), and compare with the Dipole Components Model (DCM). When the ERPs are generated by a single or multiple dipoles with equal amplitude ratios, the SVD method is superior to DCM in terms of reliable estimation of amplitude and is comparable with DCM for reliable and unbiased estimation of amplitude ratios. We show that dipole model misspecification leads to unbiased amplitude ratios and biased amplitudes when the ERP data sets are (I) generated and fit with a sin&dipole, or (2) generated by N dipoles with equal amplitude ratios and jt with M⩽N dipoles, because the effect of model misspecification cancels for a ratio. Similarly proof that DCM estimates amplitude ratios more ratios than amplitudes for these cases is given.
ISSN:0309-1902
DOI:10.3109/03091909509030282
出版商:Taylor&Francis
年代:1995
数据来源: Taylor
|
12. |
Selected contents |
|
Journal of Medical Engineering&Technology,
Volume 19,
Issue 2-3,
1995,
Page 100-102
Preview
|
PDF (340KB)
|
|
ISSN:0309-1902
DOI:10.3109/03091909509030283
出版商:Taylor&Francis
年代:1995
数据来源: Taylor
|
13. |
MDA Evaluation |
|
Journal of Medical Engineering&Technology,
Volume 19,
Issue 2-3,
1995,
Page 103-107
Preview
|
PDF (527KB)
|
|
ISSN:0309-1902
DOI:10.3109/03091909509030284
出版商:Taylor&Francis
年代:1995
数据来源: Taylor
|
14. |
News, trends&techniques |
|
Journal of Medical Engineering&Technology,
Volume 19,
Issue 2-3,
1995,
Page 108-110
Preview
|
PDF (392KB)
|
|
ISSN:0309-1902
DOI:10.3109/03091909509030285
出版商:Taylor&Francis
年代:1995
数据来源: Taylor
|
15. |
New products |
|
Journal of Medical Engineering&Technology,
Volume 19,
Issue 2-3,
1995,
Page 111-113
Preview
|
PDF (646KB)
|
|
ISSN:0309-1902
DOI:10.3109/03091909509030286
出版商:Taylor&Francis
年代:1995
数据来源: Taylor
|
|