A large-scale investigation of the resting-state alpha-band activity in relation to inter-individual differences in visual perception

• DOI: 10.31234/osf.io/uyg7q
• Publication Date: 2024-08-26T09:44:27Z
• Authors: Aleksander Zębrowski; Katarzyna Paczos; Marcin Koculak; Kinga Ciupińska; Wiktoria Orłowska; Laura Łępa; Justyna Hobot; Katarzyna Hat; Kristian Sandberg; Michał Wierzchoń; Renate Rutiku; Michał Bola
• Keywords: Alpha (finance)

A growing body of evidence indicates that spontaneous, moment-to-moment fluctuations the EEG alpha activity (7-15 Hz) affect perception, with a lower amplitude oscillations right before stimulus onset facilitating its detection and visibility. The present study aimed to determine whether alpha-band predicts perception also at inter-individual level, namely participants overall weaker resting-state perform better in stimuli identification tasks. To this end, we used data collected from 302 who took part two sessions and, on separate days performed battery visual auditory tasks had phosphene motor thresholds estimated TMS (here N = 45). Resting-state signals were characterized terms both oscillatory (periodic) background (aperiodic) components.. We found higher power particularly periodic predicted (but not thresholds). However, across several behavioral paradigms - using different types stimuli, analyzing objective accuracy subjective visibility did find correlates perceptual abilities. Our work thus is related TMS-estimated system excitability, but for relation between threshold stimuli. Therefore, while robust intra-individual our suggests it does extend level.