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Table 2:

Results from ANCOVA (with P values for independent variables included in the model)

ANCOVA ModelTemplate-Based AnalysisNative Subject Space with Manual ROI
LH, encoding
    Group.699.617
    Age.616.017
    LHV/ICA.428.490
    Group X LHV/ICA.789.700
LH, retrieval
    Group.591.542
    Age.271.181
    LHV/ICA.496.619
    Group X LHV/ICA.620.593
RH, encoding
    Group.909.724
    Age.148.070
    RHV/ICA.731.943
    Group X RHV/ICA.108.897
RH, retrieval
    Group.030*.694
    Age.707.828
    RHV/ICA.812.121
    Group X RHV/ICA.020.712
  • Note:—Dependent variable is proportion of activated voxels in hippocampal region of interest.

    LH indicates left hippocampal activation; LHV/ICA, left hippocampal volume divided by single-section intracranial volume; RH, right hippocampal activation; RHV/ICA, right hippocampal volume divided by single-section intracranial volume; Group X LHV/ICA and Group X RHV/ICA, interaction term between group and hippocampal volume. Significant values of P are indicated in boldface type.

  • * Group term becomes nonsignificant (P = .314) when the interaction term, Group X RHV/ICA, is removed from the ANCOVA model.