Figure 1.

Schematic overview of a typical trial with a stimulus onset asynchrony (SOA) of 213 milliseconds in the study by Vermeulen et al.² Each trial started by presenting a facial expression of fear or disgust directly followed by the rapid serial visual presentation (RSVP). Each stimulus was presented one at a time in the centre of the screen for 53 ms. After the participants entered the target words (T1 and T2) they saw, they had to decide whether the second face expressed a same or a different emotion than the fist face they saw.