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Titolo:
Quantitative electroencephalographic changes induced by odor detection andidentification tasks: age related effects
Autore:
Kemp, AH; Pierson, JM; Helme, RD;
Indirizzi:
Natl Ageing Res Inst, Parkville, Vic 3052, Australia Natl Ageing Res InstParkville Vic Australia 3052 le, Vic 3052, Australia Brain Sci Inst, Hawthorn, Vic 3122, Australia Brain Sci Inst Hawthorn VicAustralia 3122 Hawthorn, Vic 3122, Australia La Trobe Univ, Fac Hlth Sci, Sch Publ Hlth, Bundoora, Vic 3083, Australia La Trobe Univ Bundoora Vic Australia 3083 , Bundoora, Vic 3083, Australia
Titolo Testata:
ARCHIVES OF GERONTOLOGY AND GERIATRICS
fascicolo: 1, volume: 33, anno: 2001,
pagine: 95 - 107
SICI:
0167-4943(200107/08)33:1<95:QECIBO>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
EVENT-RELATED POTENTIALS; NORMAL ELDERLY SUBJECTS; DEMENTIA; ADULTS; SMELL; YOUNG; EEG;
Keywords:
quantitative EEG; aging comparison; odor detection and identification;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
27
Recensione:
Indirizzi per estratti:
Indirizzo: Kemp, AH Natl Ageing Res Inst, POB 31, Parkville, Vic 3052, Australia NatlAgeing Res Inst POB 31 Parkville Vic Australia 3052 ustralia
Citazione:
A.H. Kemp et al., "Quantitative electroencephalographic changes induced by odor detection andidentification tasks: age related effects", ARCH GER G, 33(1), 2001, pp. 95-107

Abstract

There are no previous studies which have compared quantitative electroencephalographic (QEEG) activity in young adult and normal elderly participantsduring olfactory tasks. This may be important if QEEG is to have a role indistinguishing between normal and pathological aging associated with this sensory system. Seventeen healthy elderly subjects (mean age 79.00 +/-3.54 years) and 16 young adult controls (mean age 22.60 +/-2.00 years) participated in the study. As reported in previous studies, beta1 and 2 activity wassignificantly greater in elderly subjects compared to young adults, thus confirming the reliability and validity of this study's quantitative electroencephalographic (QEEG) methodology. More alpha activity was evident in young adults compared with the elderly, whilst theta activity was distributed differently in the two age groups. These findings support previous literature suggesting EEG bandwidth activity reflect greater attentional capacity in young adults and EEG desynchronization in older people. Elderly subjects who identified two or fewer odors were found to have more beta activity in the olfaction condition compared to resting eyes closed, which may reflect cognitive impairment. These findings stress the importance of distinguishing subgroups of healthy elderly adults when examining the electroencephalographic profile. (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 13/07/20 alle ore 07:47:20