Individual test-retest reliability of evoked and induced alpha activity in human EEG data

Manuel Vázquez-Marrufo, Rocío Caballero-Díaz, Rubén Martín-Clemente, Alejandro Galvao-Carmona and Javier J González-Rosa

PLOS ONE, 2020, vol. 15, issue 9, 1-17

Abstract: Diverse psychological mechanisms have been associated with modulations of different EEG frequencies. To the extent of our knowledge, there are few studies of the test-retest reliability of these modulations in the human brain. To assess evoked and induced alpha reliabilities related to cognitive processing, EEG data from twenty subjects were recorded in 58 derivations in two different sessions separated by 49.5 ± 48.9 (mean ± standard deviation) days. A visual oddball was selected as the cognitive task, and three main parameters were analyzed for evoked and induced alpha modulations (latency, amplitude and topography). Latency and amplitude for evoked and induced modulations showed stable behavior between the two sessions. The correlation between sessions for alpha evoked and induced topographies in the grand average (group level) was r = 0.923, p

Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0239612

DOI: 10.1371/journal.pone.0239612

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