Ricerc@Sapienza

Although temporal coordination is a hallmark of motor interactions, joint action (JA) partners do not simply synchronize; they rather dynamically adapt to each other to achieve a joint goal. We created a novel paradigm to tease apart the processes underlying synchronization and JA and tested the causal contribution of the left anterior intraparietal sulcus (aIPS) in these behaviors.

We have previously shown that in seven drug-resistant epilepsy patients, both reachinggrasping
of objects and the mere observation of those actions did desynchronize
subdural electrocorticographic (ECoG) alpha (8–13 Hz) and beta (14–30) rhythms as
a sign of cortical activation in primary somatosensory-motor, lateral premotor and
ventral prefrontal areas (Babiloni et al., 2016a). Furthermore, that desynchronization was
greater during action execution than during its observation. In the present exploratory