| This study examines how hypnosis influences P300 amplitude and latency during passive and active oddball tasks in two subjects. Results indicate that hypnosis induces significant changes in both peak amplitude and latency, with a shift in activation from central and parietal regions pre-hypnosis to frontal and occipital areas post-hypnosis. The Wilcoxon rank-sum test revealed significant differences in P300 amplitude across multiple channels, and effect size analysis using Cohen’s d highlighted strong regional variations. While no global latency differences were observed, wider latency distributions post-hypnosis suggest increased variability in cognitive processing. These findings support the notion that hypnosis affects attentional control and awareness by modulating neural dynamics. The study contributes to a deeper understanding of hypnosis-induced neurophysiological changes and their implications for altered states of consciousness. Future research should further explore these effects in larger populations and clinical contexts. |
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