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. 2013 Mar 6;8(3):e57985. doi: 10.1371/journal.pone.0057985

Figure 4. Results of forced-choice contrast manipulation experiment.

Figure 4

The percentage of trials for which the high contrast face was judged younger is shown in the dark bars and the percentage of trials for which the low contrast face was judged younger is shown in the light bars. Results are shown for three age classes.