Fig. 2From: Differences between memory encoding and retrieval failure in mild cognitive impairment: results from quantitative electroencephalography and magnetic resonance volumetryBand power for the encoding failure (G1) and retrieval failure (G2) groups. a The EF group showed significantly higher frontal relative theta power than the RF group. A higher average of relative theta power values across all channels was also observed in the EF group. b A lower average of relative beta2 power in the frontal, central, temporal, and parietal regionsBack to article page