As behavioral evaluation of the paradigm, we expected that better imagery during encoding (Int-Enc) would result in better subsequent memory for internal events during Int-Ret. To test this prediction, we correlated the 4-point imagery quality rating with the percentage of hits during Int-Ret for each individual subject (average percentages: rating “1” = 21.23±3; “2” = 29.86±3; “3” = 44.81±3; “4” = 55.24±3). Confirming the validity of our paradigm, the average correlation was very high (R = 0.85±0.06), and very significant (p≪.0001). Thus, these results clearly indicate that high-quality imagery during Int-Enc leads to stronger memories during Int-Ret.
