Electrophysiological differentiation of phonological and semantic integration in word and sentence contexts

被引:57
作者
Diaz, Michele T.
Swaab, Tamara Y.
机构
[1] Univ Calif Davis, Dept Psychol, Davis, CA 95616 USA
[2] Univ Calif Davis, Ctr Mind & Brain, Livermore, CA 95616 USA
[3] Duke Univ, Durham, NC 27706 USA
关键词
language speech comprehension; phonology; semantics; event-related potential (ERP);
D O I
10.1016/j.brainres.2006.07.034
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
During auditory language comprehension, listeners need to rapidly extract meaning from the continuous speech-stream. It is a matter of debate when and how contextual information constrains the activation of lexical representations in meaningful contexts. Electrophysiological studies of spoken language comprehension have identified an event-related potential (ERP) that was sensitive to phonological properties of speech, which was termed the phonological mismatch negativity (PMN). With the PMN, early lexical processing could potentially be distinguished from processes of semantic integration in spoken language comprehension. However, the sensitivity of the PMN to phonological processing per se has been questioned, and it has additionally been suggested that the "PMN" is not separable from the N400, an ERP that is sensitive to semantic aspects of the input. Here, we investigated whether or not a separable PMN exists and if it reflects purely phonological aspects of the speech input. In the present experiment, ERPs were recorded from healthy young adults (N=24) while they listened to sentences and word lists, in which we manipulated semantic and phonological expectation and congruency of the final word. ERPs sensitive to phonological processing were elicited only when phonological expectancy was violated in lists of words, but not during normal sentential processing. This suggests a differential role of phonological processing in more or less meaningful contexts and indicates a very early influence of the overall context on lexical processing in sentences. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:85 / 100
页数:16
相关论文
共 67 条
[1]  
[Anonymous], LEXICAL REPRESENTATI
[2]   CATEGORY NORMS FOR VERBAL ITEMS IN 56 CATEGORIES - A REPLICATION AND EXTENSION OF CONNECTICUT CATEGORY NORMS [J].
BATTIG, WF ;
MONTAGUE, WE .
JOURNAL OF EXPERIMENTAL PSYCHOLOGY, 1969, 80 (3P2) :1-&
[3]   EVENT-RELATED POTENTIALS, LEXICAL DECISION AND SEMANTIC PRIMING [J].
BENTIN, S ;
MCCARTHY, G ;
WOOD, CC .
ELECTROENCEPHALOGRAPHY AND CLINICAL NEUROPHYSIOLOGY, 1985, 60 (04) :343-355
[4]   COMPLETION NORMS FOR 329 SENTENCE CONTEXTS [J].
BLOOM, PA ;
FISCHLER, I .
MEMORY & COGNITION, 1980, 8 (06) :631-642
[5]   THE PROCESSING NATURE OF THE N400 - EVIDENCE FROM MASKED PRIMING [J].
BROWN, C ;
HAGOORT, P .
JOURNAL OF COGNITIVE NEUROSCIENCE, 1993, 5 (01) :34-44
[6]   Processing new and repeated names: Effects of coreference on repetition priming with speech and fast RSVP [J].
Camblin, C. Christine ;
Ledoux, Kerry ;
Boudewyn, Megan ;
Gordon, Peter C. ;
Swaab, Tamara Y. .
BRAIN RESEARCH, 2007, 1146 :172-184
[7]   Phonological aspects of word recognition as revealed by high resolution spatio-temporal brain mapping [J].
Connolly, JF ;
Service, E ;
D'Arcy, RCN ;
Kujala, A ;
Alho, K .
NEUROREPORT, 2001, 12 (02) :237-243
[8]   EVENT-RELATED POTENTIAL COMPONENTS REFLECT PHONOLOGICAL AND SEMANTIC PROCESSING OF THE TERMINAL WORD OF SPOKEN SENTENCES [J].
CONNOLLY, JF ;
PHILLIPS, NA .
JOURNAL OF COGNITIVE NEUROSCIENCE, 1994, 6 (03) :256-266
[9]  
Cutler A., 1999, P 14 INT C PHON SCI, P2053
[10]   The fan effect in fMRI: left hemisphere specialization in verbal working memory [J].
D'Arcy, RCN ;
Ryner, L ;
Richter, W ;
Service, E ;
Connolly, JF .
NEUROREPORT, 2004, 15 (12) :1851-1855