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. 2013 Jan 23;8(1):e52978. doi: 10.1371/journal.pone.0052978

Figure 6. Inter-trial variance for audiovisual stimuli at central electrode sites.

Figure 6

A. For the central electrode sites Cz and CPz, percentage (%) of increase and decrease in inter-trial variance (ITV) in the 8–40 Hz frequency range for ATVI (auditory target and visual irrelevant), AIVT (auditory irrelevant and visual target) and ATVT (audiovisual dual target) stimuli. B. For each stimulus type at Cz and CPz, non-significant (p>.01 determined using a bootstrap procedure) changes in inter-trial variance (ITV) from the baseline are occluded using a white mask. C. Mean alpha (8–13 Hz) and beta (14–30 Hz) inter-trial variance (ITV) across time for electrodes Cz and CPz. D. Mean amplitude and latency of peak minima (+SEMs) in the alpha and beta frequency range for Cz and CPz electrodes (* p<.05 for one-way ANOVAs).