Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Age and sex effects in the EEG: development of the normal child
Autore:
Clarke, AR; Barry, RJ; McCarthy, R; Selikowitz, M;
Indirizzi:
Univ Wollongong, Dept Psychol, Wollongong, NSW 2522, Australia Univ Wollongong Wollongong NSW Australia 2522 ongong, NSW 2522, Australia Private Pediat Practice, Sydney, NSW, Australia Private Pediat Practice Sydney NSW Australia ice, Sydney, NSW, Australia
Titolo Testata:
CLINICAL NEUROPHYSIOLOGY
fascicolo: 5, volume: 112, anno: 2001,
pagine: 806 - 814
SICI:
1388-2457(200105)112:5<806:AASEIT>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
SPECTRAL-ANALYSIS; EQUATIONS; ELECTROENCEPHALOGRAM; ADOLESCENTS; DISORDER; BOYS;
Keywords:
children; electroencephalogram; maturation; sex; age;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
26
Recensione:
Indirizzi per estratti:
Indirizzo: Barry, RJ Univ Wollongong, Dept Psychol, Northfields Ave, Wollongong, NSW 2522, Australia Univ Wollongong Northfields Ave Wollongong NSW Australia 2522 ia
Citazione:
A.R. Clarke et al., "Age and sex effects in the EEG: development of the normal child", CLIN NEU, 112(5), 2001, pp. 806-814

Abstract

Objectives: This study investigated age-related changes and sex differences in the EEGs of normal children. Methods: Forty boys and 40 girls, between the ages of 8 and 12 years, participated in this study. The EEG was recorded during an eyes-closed resting condition and Fourier transformed to provide estimates for total power, absolute and relative power in the delta, theta, alpha and beta bands, and fortheta/alpha and theta/beta ratios. Results: Absolute delta activity decreased with age. Relative delta and theta decreased and alpha and beta increased with increasing age. The theta/alpha and theta/beta ratios decreased with increasing age. All of these indicated a developmental reduction in slow wave activity. Maturational differences were found in tile rates of change between the midline and the two hemispheres. In the absolute delta and the theta/beta ratio, the midline and the two hemispheres became more equipotential with age. In the beta band, power increased at a greater rate than in the two hemispheres. Sex differences were found, with males having less theta and more alpha than females. Conclusions: These results indicated that maturation occurs earlier at themidline than in the two hemispheres. Females were also found to have a developmental lag in the EEG compared with males. (C) 2001 Elsevier Science Ireland Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 09/04/20 alle ore 19:38:51