Elicitation of N400m in sentence comprehension due to lexical prosody incongruity

Citation
R. Hayashi et al., Elicitation of N400m in sentence comprehension due to lexical prosody incongruity, NEUROREPORT, 12(8), 2001, pp. 1753-1756
Citations number
19
Categorie Soggetti
Neurosciences & Behavoir
Journal title
NEUROREPORT
ISSN journal
09594965 → ACNP
Volume
12
Issue
8
Year of publication
2001
Pages
1753 - 1756
Database
ISI
SICI code
0959-4965(20010613)12:8<1753:EONISC>2.0.ZU;2-6
Abstract
The role of lexical prosody in the semantic integration of spoken sentences consisting of a quiz stem and an answer word was investigated analyzing th e event-related magnetic response, N400m. Three conditions regarding the re lations between the quiz and the answer word were prepared: pitch-accent vi olation, phonemic violation and no violation. Both the pitch-accent and pho nemic violations elicited significant N400m without any significant differe nces in the peak latency and magnitude of the equivalent current dipoles, s uggesting that the role of pitch-accent in semantic integration is equivale nt to that of phonemes. However, the rate of violation detection and the su ccessful N400m source estimation were lower for the pitch-accent violation than for the phonemic violation, suggesting differential neural processes f or the phonemic and prosodic cues. NeuroReport 12:1753-1756 (C) 2001 Lippin cott Williams & Wilkins.