Figure 4.

Regression of awareness test performance onto retrieval performance. The measure of discrimination performance was the difference between the percentage of correct answers and the percentage of incorrect answers given in the awareness test. The measure of retrieval performance in the experiments was the difference between the percentage of “fit” answers given to analogs versus broken analogs. (A) Experiment 1. Discrimination performance was regressed onto retrieval performance using the data from participants who took the suprathreshold version first. The significant size of the y-axis intercept indicates that the retrieval effect persists when potential contributions of conscious stimulus discrimination are excluded. The slope of the regression was also significant showing an inverse relationship. The slope and the distribution of participants above and below the zero line of the x-axis indicate that the worse stimulus discriminability was in the awareness test, the better was retrieval performance in the experiment. Hence, conscious stimulus discriminability might have counteracted unconscious paired-associative encoding and retrieval. (B) Experiment 2. Discrimination performance was regressed onto retrieval performance using the data from the subjects who had gained insight into the task principle during the initial suprathreshold version of experiment 2. The significant size of the y-axis intercept indicates that the retrieval effect persists when potential contributions of conscious stimulus discrimination are excluded.