Patterns of hemispheric asymmetry provide evidence dissociating the semantic and syntactic P600.

ABSTRACT: To understand how neural networks in the left (LH) and right (RH) cerebral hemispheres contribute to different aspects of language comprehension, in two experiments we measured event-related potentials (ERPs) as right-handed participants read sentences, some of which contained morphosyntactic and thematic role violations. Replicating prior work (Kuperberg et al., 2006), in Experiment 1 thematic role violations elicited both an N400 and a (semantic) P600 effect. Morphosyntactic violations elicited effects that differed as a function of participants' familial sinistrality (the presence [FS+] or absence [FS-] of a left-handed biological relative): FS+ participants showed a (syntactic) P600 effect whereas FS- participants showed a biphasic N400 and P600 response. To assess whether this differe

SUBMITTER: Leckey M 

PROVIDER: S-EPMC9839550 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature