Table 1.

Statistical tests of the correlation of functional connectivity between VTA–CA1 and VTA–PrC during post-encoding math with long-term associative and item memory

Long-term associative memoryLong-term item memory
Partial correlation: immediate memoryrprp
    VTA–CA10.610.040.150.65
    VTA–PrC−0.280.380.590.04
Partial correlation: encoding connectivityrprp
    VTA–CA10.760.0040.320.31
    VTA–PrC−0.240.450.280.38
Permutation testrprp
    VTA–CA10.670.0050.320.14
    VTA–PrC0.010.500.620.01
Robust regressionβpβp
    VTA–CA11.000.020.470.19
    VTA–PrC−0.060.830.400.04
Cross-validation% Errorp% Errorp
    VTA–CA18.8<0.00115.00.57
    VTA–PrC13.30.6212.60.06
  • We controlled for immediate memory and encoding connectivity using partial correlations. To confirm that these findings were reliable, we used a permutation test, robust regression, and a cross-validation procedure. Bold p values indicate significance at p < 0.05.