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I believe the structures are largely identical, not only at the raw level, but also in the details of the operational units. In addition to the circumstances, environment, family, and education, there is something else entirely individual that creates awareness, identity, and a unique personality.

Interesting

6/🧵 Together, these findings produce a map of how we build meaning: from concept coding in the occipitotemporal cortex to relational integration in frontoparietal and striatal regions

Come see our full preprint here: www.biorxiv.org/content/10.1...

(Thanks for reading!)

5/🧵 Relational analysis also identified a role of the dorsal striatum. Despite not being typically seen as an area for semantic coding, striatal regions robustly represent relational content, and the strength of this representation predicts participants’ judgments about item pairs

4/🧵 We used LLM embeddings to model neural representations via fMRI and RSA, which revealed dissociations in information processing. Occipitotemporal structures parse concepts but not relations. Conversely, frontoparietal regions (especially the PFC) almost exclusively encode relational information

3/🧵 Next, we tested relational information. LLM activity for texts like “A prison and poker table” robustly predicts human ratings on the likelihood of finding a poker table in a prison. Further analyses show how LLMs parsing such texts also capture precise propositional relational features