“…Numerous studies in the domains of language, music, and vision have investigated the discrimination of hierarchical structures by asking participants to evaluate whether sequences of items are well‐formed according to a previously learned system of rules (Bahlmann, Schubotz, & Friederici, ; Bahlmann, Schubotz, Mueller, Koester, & Friederici, ; Bianco et al, ; Friederici, Bahlmann, Friedrich, & Makuuchi, ; Maess, Koelsch, Gunter, & Friederici, ; Sammler, Koelsch, & Friederici, ). These studies suggest that lateral prefrontal cortex (PFC, particularly inferior frontal gyrus, IFG) might contribute multi‐domain resources to the processing of hierarchies (Fadiga, Craighero, & D'Ausilio, ; Friederici et al, ; Patel, ), in interaction with areas along ventral visual/auditory streams that may store domain‐specific schematic information (Bianco et al, ; Martins et al, ; Oechslin, Gschwind, & James, ; Pallier, Devauchelle, & Dehaene, ; Sammler et al, ). Recent anatomical research has shown that IFG in humans is expanded (Schenker et al, ) and more strongly connected with the posterior temporal regions in comparison to other primates (Neubert, Mars, Thomas, Sallet, & Rushworth, ; Rilling et al, ).…”