Figure 3.

(A) Main effect of factor (veridical or magnified) in the recognition experiment. Sensitivity (d′) is not greater than zero for the veridical rendering (factor 1), but is greater than zero for the magnified (factor 5) rendering. The error bars indicate the standard error of the mean. (B) Irregularity thresholds for three representative fingerprints. We find that the thresholds for all three extracts are one or above, that is, their irregularity is heard only when we exaggerate it slightly. Error bars indicate the standard error of the mean.