In language, not only do sentence meanings depend on how words are structured together, but word meanings also depend on their roles in the structure. While we have some understanding of how the brain grasps complex meanings built from simpler parts, we know far less about how linguistic structure reshapes the meanings of the words themselves. Here we used magnetoencephalography (29 human participants: 16 women, 9 men, 4 nonbinary) to track the neural dynamics of animacy, a fundamental semantic feature that guides conceptual organization. Regardless of how animacy was operationalized (as discrete semantic categories or more abstractly), the same pattern emerged: When word-level animacy conflicted with the structural context, it disappeared from the word's neural representation. Our findings show how compositional processes rapidly reconfigure neural traces of word meanings, allowing phrase-level meanings to even override word-level features.
Krogh, S. M., Pylkkänen, L.
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