The representation of discourse in the two hemispheres: An individual diVerences investigation  

Oleh:

Prat, Chantel S. ; Long, Debra L. ; Baynes, Kathleen

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Brain and Language (Full Text) vol. 100 no. 3 (2007), page 283-294.
Topik: Individual diVerences; Discourse processes; Discourse representation; Right hemisphere; Language; Memory; Laterality; Reading skill
Fulltext: 100_03_Prat.pdf (347.87KB)

Isi artikel

Two experiments were conducted to investigate discourse representation in the two cerebral hemispheres as a function of reading skill. We used a lateralized visual-Weld procedure to compare left hemisphere (LH) and right hemisphere (RH) sensitivity to diVerent discourse relations in readers with varying skill levels. In Experiment 1, we investigated two levels of discourse representation in memory: (a) the propositional representation and (b) the discourse model. We found that all readers were sensitive to propositional relations in the LH. In contrast, sensitivity to propositional relations in the RH increased as a function of reading skill. In addition, reading skill was positively related to topic relations in the LH, whereas it was negatively in the RH. In Experiment 2, we investigated propositional relations of diVerent distances and again found that all readers were sensitive to propositional relations in the LH, whereas sensitivity to propositional relations in the RH was negatively related to reading skill. In general, reading skill appears to be associated with left-lateralized discourse representations.

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