Event-related potential indicators of text integration across sentence boundaries

Autor(en): Yang, Chin Lung
Perfetti, Charles A.
Schmalhofer, Franz
Stichwörter: BRAIN POTENTIALS; BRIDGING INFERENCES; comprehension; ERPs; INDIVIDUAL-DIFFERENCES; LANGUAGE COMPREHENSION; NARRATIVE TEXT; paraphrase; PCA; predictive inference; PREDICTIVE INFERENCES; Psychology; Psychology, Experimental; SITUATION MODELS; STORY COMPREHENSION; text integration; WORD REPETITION; WORKING-MEMORY
Erscheinungsdatum: 2007
Herausgeber: AMER PSYCHOLOGICAL ASSOC
Journal: JOURNAL OF EXPERIMENTAL PSYCHOLOGY-LEARNING MEMORY AND COGNITION
Volumen: 33
Ausgabe: 1
Startseite: 55
Seitenende: 89
Zusammenfassung: 
An event-related potentials (ERPs) study examined word-to-text integration processes across sentence boundaries. In a two-sentence passage, the accessibility of a referent for the first content word of the second sentence (the target word) was varied by the wording of the first sentence in one of the following ways: lexically (explicitly using a form of the target word) conceptually (using a paraphrase of the target word), and situationally (encouraging an inference concerning the referent of the target word). A baseline condition had no coreference between the two sentences. ERP results on the target word indicated multiple effects related to word identification and word-to-referent mapping processes. Both the explicit and paraphrase conditions, but not the inference condition, showed a reduced N400 relative to the baseline condition, consistent with immediate integration by lexico-semantic processes. A 300-ms effect (P300) was found in the paraphrase condition. The results were consistent with an immediate integration hypothesis and furthermore differentiated a lexical (N200), a conceptual (P300), and a situational (N400) component for this integration. The conceptual basis appears not to extend to predictive inferences.
ISSN: 02787393
DOI: 10.1037/0278-7393.33.1.55

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