Before revision:  Interestingly, this modulation interacted with the alexithymic traits, with a reduction of the N170 amplitude modulation as a function of the facial mimicry manipulationfor participants with the highest levels of alexithymic traits. These results demonstrate that sensorimotor simulation influences visual processing of facial expressions at early stages and that participants with higher alexithymic traits tend to underutilize the sensorimotor simulation system .
After revision:  Interestingly, this modulation interacted with the alexithymic traits, with a reduction of the N170 amplitude modulation as a function of mimicry manipulation, individuals with lower alexithymic traits showed modulations of the P1 amplitude, while individuals with higher alexithymic traits showed modulations of the later N170). Furthermore, connectivity analysis at the scalp level suggested increased connectivity between sensorimotor and extrastriate visual regions in individuals with lower alexithymic traits compared to individuals with higher alexithymic traits. Overall, we interpreted these ERPs modulations as compensative visual processing under conditions of interference on the sensorimotor processing .