Test-retest reliability of duration-related and frequency-related mismatch negativity - 11/12/21
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Abstract |
Objectives |
–Mismatch negativity (MMN) has been demonstrated as a potential biomarker for pre-attentive processing and prognosis in patients with psychosis. However, previous studies mainly evaluated the reliability of MMN across only two repeated sessions, which is inadequate to draw a convincing conclusion. The current study aimed to assess multi-session test-retest reliability in duration-related MMN (dMMN) and frequency-related MMN (fMMN).
Methods |
–We recorded four repeated sessions of electroencephalography (EEG) from 16 healthy participants in an oddball task. MMNs were extracted and their reliability was evaluated by intra-class coefficient (ICC). We also analyzed the correlation between fMMN and dMMN.
Results |
–Both dMMN and fMMN amplitudes exhibited good test-retest reliability, and fMMN had better reliability (average ICC = 0.7279) than dMMN (average ICC = 0.6974). Moreover, dMMN and fMMN showed more than moderate linear correlation in amplitudes (r = 0.598, CI: [0.100, 0.857]).
Conclusion |
–Both the duration- and frequency-related MMN amplitudes were highly reliable across four-session experiments. These results provide further evidence for the potential utility of MMNs as biomarkers in research into brain function, and prognosis in psychotic illness.
El texto completo de este artículo está disponible en PDF.Keywords : Duration-related MMN, Frequency-related MMN, Intraclass coefficient (ICC), Mismatch negativity (MMN), Test-retest reliability
Esquema
Vol 51 - N° 6
P. 541-548 - décembre 2021 Regresar al número
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Bienvenido a EM-consulte, la referencia de los profesionales de la salud.
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