Subsecond changes of global brain state in illusory multistable motion perception

Müller, Th J; Koenig, Th; Wackermann, J; Kalus, P; Fallgatter, A; Strik, W; Lehmann, D (2005). Subsecond changes of global brain state in illusory multistable motion perception. Journal of neural transmission, 112(4), pp. 565-76. Wien: Springer 10.1007/s00702-004-0194-z

Preview

Text M_ller2005_Article_SubsecondChangesOfGlobalBrainS.pdf - Published Version Available under License Publisher holds Copyright. Download (246kB) | Preview

This study explored transient changes in EEG microstates and spatial Omega complexity associated with changes in multistable perception. 21-channel EEG was recorded from 13 healthy subjects viewing an alternating dot pattern that induced illusory motion with ambiguous direction. Baseline epochs with stable motion direction were compared to epochs immediately preceding stimuli that were perceived with changed motion direction ('reference stimuli'). About 750 ms before reference stimuli, Omega complexity decreased as compared to baseline, and two of four classes of EEG microstates changed their probability of occurrence. About 300 ms before reference stimuli, Omega complexity increased and the previous deviations of EEG microstates were reversed. Given earlier results on Omega complexity and microstates, these sub-second EEG changes might parallel longer-lasting fluctuations in vigilance. Assumedly, the discontinuities of illusory motion thus occur during sub-second dips in arousal, and the following reconstruction of the illusion coincides with a state of relative over-arousal.

Interest & Impact

Downloads

72 since deposited on 04 Oct 2013
72 in the past 12 months

Citations

5 Citations in Web of Science ®
6 Citations in Scopus

Search

in Google Scholar™

Services

Actions (login required)

Edit item

Actions (login required)

Edit item