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Titolo:
Spatiotemporal maturation of the central and lateral N1 components to tones
Autore:
Gomes, H; Dunn, M; Ritter, W; Kurtzberg, D; Brattson, A; Kreuzer, JA; Vaughan, HG;
Indirizzi:
CUNY City Coll, Dept Psychol, New York, NY 10031 USA CUNY City Coll New York NY USA 10031 Dept Psychol, New York, NY 10031 USA Albert Einstein Coll Med, Dept Neurol, Bronx, NY 10467 USA Albert EinsteinColl Med Bronx NY USA 10467 t Neurol, Bronx, NY 10467 USA Albert Einstein Coll Med, Dept Neurosci, Bronx, NY 10467 USA Albert Einstein Coll Med Bronx NY USA 10467 Neurosci, Bronx, NY 10467 USA Nathan S Kline Inst Psychiat Res, Program Cognit Neurosci & Schizophrenia,Orangeburg, NY 10962 USA Nathan S Kline Inst Psychiat Res Orangeburg NY USA 10962 rg, NY 10962 USA
Titolo Testata:
DEVELOPMENTAL BRAIN RESEARCH
fascicolo: 2, volume: 129, anno: 2001,
pagine: 147 - 155
SICI:
0165-3806(20010823)129:2<147:SMOTCA>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
AUDITORY-EVOKED-POTENTIALS; SEVERE LANGUAGE IMPAIRMENT; EVENT-RELATED POTENTIALS; LONG-LATENCY POTENTIALS; DEVELOPMENTAL-CHANGES; CURRENT-DENSITY; MIDDLE-LATENCY; CHILDREN; TOPOGRAPHY; AGE;
Keywords:
auditory evoked potential; N1; N100; child; topography;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
42
Recensione:
Indirizzi per estratti:
Indirizzo: Gomes, H CUNY City Coll, Dept Psychol, 137th & Convent ave, New York, NY 10031 USA CUNY City Coll 137th & Convent ave New York NY USA 10031 0031 USA
Citazione:
H. Gomes et al., "Spatiotemporal maturation of the central and lateral N1 components to tones", DEV BRAIN R, 129(2), 2001, pp. 147-155

Abstract

This paper examines maturational changes in the spatiotemporal features ofcentral and lateral NI components of the auditory evoked potentials (AEPs)to tone stimuli presented with a long stimulus onset asyncrony (SOA; 4200 ms) using the scalp current density (SCD) technique. A group of typically developing children ranging from 6 to 12 years of age and a group of adults were studied. Recently studies have begun to explore the topography of these components in children. These studies, however, often used rapidly presented stimuli and did not elicit observable central N1s in the younger children. Our stimuli elicited both central and lateral Nts. Peak latencies of both components decreased with age. Peak amplitude also decreased with age for the lateral NI but not for the central Nl. Consequently, the difference between the lateral N1 and the central N1 amplitudes (or the ratio of lateral N1 amplitude to central N1 amplitude) also decreased with age, dramatically altering the morphology of the elicited AEP waveforms. Topography of thelateral N1 did not change with age. The location of maximal activation forthe central N1 appeared to move more medially with age but this 'apparent'movement is probably due to the decreasing impact of the partially overlapping lateral N1 component whose amplitude is significantly smaller in adults than in children. (C) 2001 Elsevier Science BY All rights reserved.

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Documento generato il 18/01/20 alle ore 21:36:16