Fig. 3

The results of correlation analysis. The metabolism of RMTG showed correlations with the scores of SCD-9 (a), HAMD (b), AVLT-N5 (c), and AV45 SUVR (d). More complaints and depression were related to a decreased glucose metabolism of RMTG. AVLT-N5 was positively correlated with RMTG SUVR. The more Aβ deposition, the lower the RMTG metabolism, but it did not reach a significant difference level. Hollow circles indicate NC individuals, solid squares mean SCD individuals, the solid line is the fitted line. Abbreviations: NC, normal control; SCD, subjective cognitive decline; RMTG, right middle temporal gyrus; SUVR, standardized uptake value ratio; SCD-9, Subjective Cognitive Decline-9; HAMD, Hamilton depression scale; AVLT-N5, auditory verbal learning test-long delayed memory; AV45, Florbetapir F-18