Title Reliability analysis of individual visual P1 and N1 maps indicates the heterogeneous topographies involved in early visual processing among human subjects
Authors Vázquez-Marrufo M., del Barco-Gavala A., GALVAO CARMONA, ALEJANDRO, Martín-Clemente R., GALVAO CARMONA, ALEJANDRO
External publication No
Means Behav. Brain Res.
Scope Article
Nature Científica
JCR Quartile 2
SJR Quartile 1
Area International
Web https://www.scopus.com/inward/record.uri?eid=2-s2.0-85091917369&doi=10.1016%2fj.bbr.2020.112930&partnerID=40&md5=9c7bd868d6d0e1eeb21cc9dca0bbf7fb
Publication date 01/01/2021
ISI 000587813500014
Scopus Id 2-s2.0-85091917369
DOI 10.1016/j.bbr.2020.112930
Abstract 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.
Keywords adult; article; clinical article; controlled study; electroencephalogram; female; human; human experiment; male; reliability; topography; visual field
Universidad Loyola members