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Titolo:
Phonological aspects of word recognition as revealed by high resolution spatio-temporal brain mapping
Autore:
Connolly, JF; Service, E; DArcy, RCN; Kujala, A; Alho, K;
Indirizzi:
Dalhousie Univ, Dept Psychol, Cognit Clin Neurosci Unit, Halifax, NS B3H 4J1, Canada Dalhousie Univ Halifax NS Canada B3H 4J1 nit, Halifax, NS B3H 4J1, Canada Dalhousie Univ, Dept Psychiat, Life Sci Ctr, Halifax, NS B3H 4J1, Canada Dalhousie Univ Halifax NS Canada B3H 4J1 Ctr, Halifax, NS B3H 4J1, Canada Univ Helsinki, Cognit Brain Res Unit, FIN-00014 Helsinki, Finland Univ Helsinki Helsinki Finland FIN-00014 it, FIN-00014 Helsinki, Finland Univ Helsinki, Dept Psychol, FIN-00014 Helsinki, Finland Univ Helsinki Helsinki Finland FIN-00014 ol, FIN-00014 Helsinki, Finland Univ Helsinki, Cent Hosp, Med Engn Ctr, BioMag Lab, FIN-00014 Helsinki, Finland Univ Helsinki Helsinki Finland FIN-00014 ab, FIN-00014 Helsinki, Finland
Titolo Testata:
NEUROREPORT
fascicolo: 2, volume: 12, anno: 2001,
pagine: 237 - 243
SICI:
0959-4965(20010212)12:2<237:PAOWRA>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
SPOKEN SENTENCES; WORKING MEMORY; POTENTIALS;
Keywords:
brain mapping; ERPs; event-related brain potentials; language; N400; neuroimaging; phonology; PMN; priming;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
23
Recensione:
Indirizzi per estratti:
Indirizzo: Connolly, JF Dalhousie Univ, Dept Psychol, Cognit Clin Neurosci Unit, Halifax, NS B3H 4J1, Canada Dalhousie Univ Halifax NS Canada B3H 4J1 NS B3H 4J1, Canada
Citazione:
J.F. Connolly et al., "Phonological aspects of word recognition as revealed by high resolution spatio-temporal brain mapping", NEUROREPORT, 12(2), 2001, pp. 237-243

Abstract

We describe, for the first time, the use-of high-resolution event-related brain potentials (hrERP) to identify the spatiotemporal characteristics of neural systems involved in phonological analysis. Subjects studied a visualword/non-word that was followed by the brief presentation of a prime letter (e.g. House, M) with the instruction to anticipate the word/nonword formed by replacing the word's first letter with the prime letter. After the prime letter, an auditory target word non-word was presented that either matched/mismatched expectations (e.g., Mouse/Barn). ERPs were recorded to the onset of the auditory targets and scalp topographical maps were derived for the phonological mismatch negativity (PMN). The PMN reflected phonological analysis and examination of the peak topography revealed that the response was characterized by a prominent frontal, right-asymmetrical distribution. Spatial de-blurring (using current source density maps) indicated that the PMN scalp topography resulted primarily from an active left anterior source. The current results provide the initial evidence for the localization of the intra-cranial generator(s) involved in-phonological analysis. NeuroReport 12:237-243 (C) 2001 Lippincott Williams & Wilkins.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 23/01/20 alle ore 04:08:28