Abstract/Summary

Generative Adversarial Networks (GANs) can create realistic synthetic faces, which have the potential to be used for nefarious purposes. The synthetic faces produced by GANs are difficult to detect and are often judged to be more realistic than real faces. Training programmes have been developed to improve human synthetic face detection accuracy, with mixed results. Here we investigate synthetic face detection and discrimination in super-recognisers (who have exceptional face recognition skills), and typical-ability control participants. We also devised a training procedure which sought to highlight rendering artifacts. In two different experimental designs, we found that super-recognisers (total N = 283) were better at detecting and discriminating synthetic faces than controls (total N = 381), where control participants were below chance without training. Trained super-recognisers and controls had significantly better performance than those without training, and the magnitude of the training effect was similar in both groups. Our results suggest that super-recognisers are using cues unrelated to rendering artifacts to detect and discriminate synthetic faces, and that an easily implementable training procedure increases their performance to above chance levels. These results have implications for real-world scenarios, where trained super-recognisers' performance could be harnessed for synthetic face detection.