RT Journal Article
T1 Retest reliability of individual p3 topography assessed by high density electroencephalography.
A1 Vázquez-Marrufo, Manuel
A1 González-Rosa, Javier J
A1 Galvao-Carmona, Alejandro
A1 Hidalgo-Muñoz, Antonio
A1 Borges, Mónica
A1 Ruiz Peña, Juan Luis
A1 Izquierdo, Guillermo
K1 Electroencefalografía
K1 Potenciales relacionados con Evento P300
K1 Estimulación luminosa
K1 Reproducibilidad de resultados
AB BACKGROUNDSome controversy remains about the potential applicability of cognitive potentials for evaluating the cerebral activity associated with cognitive capacity. A fundamental requirement is that these neurophysiological parameters show a high level of stability over time. Previous studies have shown that the reliability of diverse parameters of the P3 component (latency and amplitude) ranges between moderate and high. However, few studies have paid attention to the retest reliability of the P3 topography in groups or individuals. Considering that changes in P3 topography have been related to different pathologies and healthy aging, the main objective of this article was to evaluate in a longitudinal study (two sessions) the reliability of P3 topography in a group and at the individual level.RESULTSThe correlation between sessions for P3 topography in the grand average of groups was high (r = 0.977, p<0.001). The within-subject correlation values ranged from 0.626 to 0.981 (mean: 0.888). In the between-subjects topography comparisons, the correlation was always lower for comparisons between different subjects than for within-subjects correlations in the first session but not in the second session.CONCLUSIONSThe present study shows that P3 topography is highly reliable for group analysis (comprising the same subjects) in different sessions. The results also confirmed that retest reliability for individual P3 maps is suitable for follow-up studies for a particular subject. Moreover, P3 topography appears to be a specific marker considering that the between-subjects correlations were lower than the within-subject correlations. However, P3 topography appears more similar between subjects in the second session, demonstrating that is modulated by experience. Possible clinical applications of all these results are discussed.
PB Public Library of Science
YR 2013
FD 2013-05-01
LK http://hdl.handle.net/10668/2071
UL http://hdl.handle.net/10668/2071
LA en
NO Vázquez-Marrufo M, González-Rosa JJ, Galvao-Carmona A, Hidalgo-Muñoz A, Borges M, Peña JL, et al. Retest reliability of individual p3 topography assessed by high density electroencephalography. PLoS ONE. 2013; 8(5):e62523
NO Journal Article; Research Support, Non-U.S. Gov't;
DS RISalud
RD Apr 11, 2025