Fig. 4 | Scientific Reports

Fig. 4

From: Feeding the mind: preliminary insights into the effects of Anthocyanin-Rich Extract from black carrots on brain activity and gut microbiota in patients with cognitive impairments

Fig. 4The alternative text for this image may have been generated using AI.

Changes in QG values before and after ARE consumption are visualized using z-score–based colormaps across selected EEG frequency bands: All Spectrum (1–45 Hz), Delta (1–3 Hz), Theta (3–7 Hz), Alpha (7–12 Hz), and Gamma (30–45 Hz). The Beta band was excluded due to a limited number of statistically significant findings. Most significant increases in QG were observed at frontal (F8), central (C4), and temporal (T3) electrodes in the Delta band. Widespread enhancements were also found in the All Spectrum, particularly at F8, C4, Pz, and Oz. Electrodes with statistically significant changes (\(p < 0.05\), Wilcoxon signed-rank test) are highlighted in blue, while those surviving FDR correction at \(q < 0.10\) are highlighted in red.

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