AI Article Synopsis
- We studied how brain damage affects the understanding of reversible sentences in 79 aphasic patients.
- Damage in the temporo-parietal cortex was linked to difficulties in understanding these sentences, even after accounting for factors like working memory.
- Our findings suggest that this brain region is important for processing the meaning and context of sentences, while the ventrolateral prefrontal cortex, including Broca’s area, showed little connection to sentence comprehension, challenging existing theories on its role in syntax.
Article Abstract
We explored the neural basis of reversible sentence comprehension in a large group of aphasic patients (n = 79). Voxel-based lesion symptom mapping revealed a significant association between damage in temporo-parietal cortex and impaired sentence comprehension. This association remained after we controlled for phonological working memory. We hypothesize that this region plays an important role in the thematic or what-where processing of sentences. In contrast, we detected weak or no association between reversible sentence comprehension and the ventrolateral pFC, which includes Broca's area, even for syntactically complex sentences. This casts doubt on theories that presuppose a critical role for this region in syntactic computations.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3389786 | PMC |
| http://dx.doi.org/10.1162/jocn_a_00118 | DOI Listing |
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