Fig. 1

Overall performances during the face and emotion recognition tasks. a: decision times (RTs) during the face/emotion discrimination task. Mean RTs are presented with standard deviation and population’s distribution. The asterisks represent statistical differences between TD controls and patients with DEL or UPD. b: Median accuracy and population’s distribution obtained for the face/emotion discrimination tasks. The asterisks represent significant differences between the mean percentage of performances between the TD controls and patients with DEL or UPD. Patients with PWS were slower at making decisions and performed more poorly on the face and emotion recognition tasks than the TD population. We did not find any differences between the two tasks or between the two genetic populations