Read the passage below. Complete {{blank_1}} by identifying the exact sentence that presents empirical findings that serve to qualify the claim that the left anterior superior temporal gyrus (aSTG) functions as the primary engine for syntactic structure-building.
Answer:For several decades, neurobiological models of language comprehension assigned syntactic parsing exclusively to Broca’s area in the left inferior frontal gyrus. However, neuroimaging studies conducted during the 2010s demonstrated robust activation in the left anterior superior temporal gyrus (aSTG) during basic phrasal composition, leading several researchers to propose that the aSTG serves as the primary engine for structure-building. To test this hypothesis, recent investigations employed magnetoencephalography (MEG) to track word-by-word neural activity during the processing of constituent structures. Crucially, these MEG recordings revealed that aSTG activation peaks strictly within 200 milliseconds of phrase onset, regardless of whether the incoming constituent is syntactically coherent or a pseudo-word string adhering only to basic prosodic contours. This temporal invariance suggests that initial aSTG engagement reflects pre-syntactic auditory chunking rather than abstract syntactic integration. Consequently, while the aSTG undoubtedly contributes to early linguistic framing, assigning it an exclusive role in hierarchical syntactic parsing understates the distributed nature of temporal-frontal language networks.
The sentence that functions as empirical evidence qualifying the structure-building hypothesis is: 【Crucially, these MEG recordings revealed that aSTG activation peaks strictly within 200 milliseconds of phrase onset, regardless of whether the incoming constituent is syntactically coherent or a pseudo-word string adhering only to basic prosodic contours.】
The sentence that functions as empirical evidence qualifying the structure-building hypothesis is: 【Crucially, these MEG recordings revealed that aSTG activation peaks strictly within 200 milliseconds of phrase onset, regardless of whether the incoming constituent is syntactically coherent or a pseudo-word string adhering only to basic prosodic contours.】
Answer
The sentence starting with 'Crucially, these MEG recordings revealed that aSTG activation peaks strictly within 200 milliseconds...' provides the specific empirical data (MEG recordings demonstrating rapid activation regardless of syntactic coherence) that limits and qualifies the claim that the aSTG is a dedicated syntactic structure-building engine.
The sentence beginning 'Crucially, these MEG recordings revealed...' presents the concrete experimental data showing that aSTG activation occurs rapidly and indiscriminately across both syntactically meaningful constituents and meaningless pseudo-word strings. This specific empirical result places a crucial constraint on the hypothesis that the aSTG functions as a specialized syntactic structure-builder.
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Rhetorical Structure and Sentence Function
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