RT info:eu-repo/semantics/article
T1 Improved measurement of intersession latency in mfVEPs
A1 Santiago Rodrigo, Luis de
A1 Fernández Rodríguez, Alfredo José
A1 Blanco, R.
A1 Pérez Rico, María Consuelo
A1 Rodríguez Ascariz, José Manuel
A1 Barea Navarro, Rafael
A1 Miguel Jiménez, Juan Manuel
A1 Amo, C.
A1 Sánchez Morla, Eva María
A1 Boquete Vázquez, Luciano
K1 Multifocal visual-evoked
potential
K1 Relative latencies
K1 Cross-correlation
K1 Visual pathway
K1 Electrónica
K1 Electronics
AB Purpose: The purpose of the study is to present a method (Selfcorr) by which to measure intersession latency differences between multifocal VEP (mfVEP) signals.Methods: The authors compared the intersession latency difference obtained using a correlation method (Selfcorr) against that obtained using a Template method. While the Template method cross-correlates the subject’s signals with a reference database, the Selfcorr method cross-correlates traces across subsequent recordings taken from the same subject.Results: The variation in latency between intersession signals was 0.8 ± 13.6 and 0.5 ± 5.0 ms for the Template and Selfcorr methods, respectively, with a coefficient of variability C V_TEMPLATE = 15.83 and C V_SELFCORR = 5.68 (n = 18, p = 0.0002, Wilcoxon). The number of analyzable sectors with the Template and Selfcorr methods was 36.7 ± 8.5 and 45.3 ± 8.7, respectively (p = 0.0001, paired t test, two tailed).Conclusions: The Selfcorr method produces smaller intersession mfVEP delays and variability over time than the Template method.
PB Springer
SN 0012-4486
YR 2014
FD 2014-05-07
LK http://hdl.handle.net/10017/49178
UL http://hdl.handle.net/10017/49178
LA eng
NO Ministerio de Ciencia e Innovación
DS MINDS@UW
RD 23-abr-2024