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Titolo:
The development of auditory evoked dipole source activity from childhood to adulthood
Autore:
Albrecht, R; von Suchodoletz, W; Uwer, R;
Indirizzi:
Univ Munich, Dept Child & Adolescent Psychiat, D-80336 Munich, Germany Univ Munich Munich Germany D-80336 ent Psychiat, D-80336 Munich, Germany
Titolo Testata:
CLINICAL NEUROPHYSIOLOGY
fascicolo: 12, volume: 111, anno: 2000,
pagine: 2268 - 2276
SICI:
1388-2457(200012)111:12<2268:TDOAED>2.0.ZU;2-E
Fonte:
ISI
Lingua:
ENG
Soggetto:
EVENT-RELATED POTENTIALS; AGE-RELATED-CHANGES; MISMATCH NEGATIVITY; MAGNETIC-FIELDS; N1 WAVE; COGNITIVE-DEVELOPMENT; REACTION-TIME; HUMAN-BRAIN; CHILDREN; CORTEX;
Keywords:
event-related potential; late auditory evoked potential; dipole source analysis; development;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
52
Recensione:
Indirizzi per estratti:
Indirizzo: von Suchodoletz, W Univ Munich, Dept Child & Adolescent Psychiat, Nussbaumstr 7, D-80336 Munich, Germany Univ Munich Nussbaumstr 7 Munich Germany D-80336 rmany
Citazione:
R. Albrecht et al., "The development of auditory evoked dipole source activity from childhood to adulthood", CLIN NEU, 111(12), 2000, pp. 2268-2276

Abstract

Objective: Multi-channel recordings show that observed developmental changes of late auditory evoked potentials (LAEP) depend on the location of the scalp electrode. These findings suggest that different LAEP generators havea distinct developmental course. The goal of this study was to investigatethe maturational process of cortical LAEP generators. Methods: Eighty-seven healthy children and adolescents with normal hearing, ages 5-16 years, and 21 adults, ages 20-30 years, participated in the study. Pure tone LAEP were recorded from 21 derivations. Dipole source analysis was performed by means of brain electric source analysis (BESA). Peak latencies and amplitudes of dipole source activity were estimated. Results: While the number, location, and direction of dipole sources were similar in children and adults, the course of their activity differed greatly. The latencies shortened and the amplitudes decreased during development. In adolescence a new component appeared in the activity of the tangentialdipole, which reflects the generators in the supra-temporal plane. The variability of parameters was greater in children than in adults. Conclusions: Since the dipole source activity of LAEP in childhood differsconsiderably from that in adulthood, dipole source analysis could be a useful tool for studying both normal and disturbed maturation of the auditory perceptual function. (C) 2000 Elsevier Science ireland Ltd. All rights reserved.

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Documento generato il 19/01/20 alle ore 00:39:18