Fig. 8
From: A Human EEG Dataset for Multisensory Perception and Mental Imagery

Power Spectral Density (PSD) Differences between Imagery Tasks and Baseline Fixation. Comparative PSD analysis illustrating EEG spectral changes between imagery conditions (visual, auditory, multimodal) and baseline fix- ation. Visual imagery significantly enhances Alpha oscillations in the occipital lobe; auditory imagery primarily boosts Theta activity centrally; multimodal imagery broadly elevates neural oscillations across frequency bands.