Languagestructureinthebrain:A fixation-relatedfMRIstudyofsyntactic surprisal in reading
作者： Matthew W. Lowder , John M. Henderson , Fernanda Ferreira , Wonil Choi
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摘要: article i nfo How is syntactic analysis implemented by the human brain during language comprehension? The current study combined methods from computational linguistics, eyetracking, and fMRI to address this question. Subjects read passages of text presented as paragraphs while their eye movements were recorded in an MRI scanner. We parsed using a probabilistic context-free grammar isolate difficulty. Syntactic difficulty was quantified surprisal, which related expectedness given word's category its preceding context. compared words with high low surprisal values that equated for length, frequency, lexical used fixation-related (FIRE) fMRItomeasure neural activity asso- ciated each fixated word. observed greater than syn- tacticsurprisalintwo predicted cortical regionspreviously identifiedwith syntax: leftinferior frontalgyrus (IFG)
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