TY  - INPR
A1  - Vignali, Lorenzo
A1  - Xu, Yangwen
A1  - Turini, Jacopo
A1  - Collignon, Olivier
A1  - Crepaldi, Davide
A1  - Bottini, Roberto
T1  - Timecourse and source localization of abstract and concrete semantic representations
T2  - bioRxiv
N2  - Dual coding theories of knowledge suggest that meaning is represented in the brain by a double code, which comprises language-derived representations in the Anterior Temporal Lobe and sensory-derived representations in perceptual and motor regions. This approach predicts that concrete semantic features should activate both codes, whereas abstract features rely exclusively on the linguistic code. Using magnetoencephalography (MEG), we adopted a temporally resolved multiple regression approach to identify the contribution of abstract and concrete semantic predictors to the underlying brain signal. Results evidenced early involvement of anterior-temporal and inferior-frontal brain areas in both abstract and concrete semantic information encoding. At later stages, occipito-temporal regions showed greater responses to concrete compared to abstract features. The present findings shed new light on the temporal dynamics of abstract and concrete semantic representations in the brain and suggest that the concreteness of words processed first with a transmodal/linguistic code, housed in frontotemporal brain systems, and only after with an imagistic/sensorimotor code in perceptual and motor regions.
Y1  - 2023
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/74467
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-744672
IS  - 2023.06.23.546231
ER  -