Vázquez-Marrufo M. , del Barco-Gavala A. , GALVAO CARMONA, ALEJANDRO, Martín-Clemente R.
No
Behav Brain Res
Article
Científica
3.352
0.89
01/01/2021
000587813500014
2-s2.0-85091917369
There is a lack of studies regarding the reliability of the event-related components (ERPs) of an electroencephalogram (EEG) used to assess cognitive processing in human subjects. To explore the reliability scores for the P1 and N1 components in two sessions (separated by an average of 116 days), twenty subjects performed a visual lateralized detection paradigm and EEG recording (58 channels) were employed. The session factor did not modulate the P1/N1 latencies. The visual field factor (left (LVF) or right (RVF)) was a determinant for the P1 and N1 topographical distributions as shown in previous studies. Moreover, topographical maps of the grand average showed a very strong correlation level between sessions (>0.9). Finally, individual maps demonstrated that the classic contralateral pattern for the P1 and N1 components was not always present in all subjects. In particular, compared to the N1 component, the P1 component exhibited a more complex set of individual topographical distributions, revealing that some steps are more heterogeneous among human subjects in early visual processing. © 2020 Elsevier B.V.
adult; article; clinical article; controlled study; electroencephalogram; female; human; human experiment; male; reliability; topography; visual field