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Titolo:
AGE-RELATED FUNCTIONAL DIFFERENCES BETWEEN AUDITORY CORTICES - A WHOLE-HEAD MEG STUDY
Autore:
PEKKONEN E; HUOTILAINEN M; VIRTANEN J; SINKKONEN J; RINNE T; ILMONIEMI RJ; NAATANEN R;
Indirizzi:
UNIV HELSINKI,DEPT PSYCHOL,COGNIT PSYCHOPHYSIOL RES UNIT,POB 11 SF-00014 HELSINKI FINLAND HELSINKI UNIV,CENT HOSP,DEPT RADIOL SF-00290 HELSINKI FINLAND HELSINKI UNIV,CENT HOSP,CTR MED ENGN,BIOMAG LAB SF-00290 HELSINKI FINLAND
Titolo Testata:
NeuroReport
fascicolo: 13, volume: 6, anno: 1995,
pagine: 1803 - 1806
SICI:
0959-4965(1995)6:13<1803:AFDBAC>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Soggetto:
FIELDS;
Keywords:
AGING; AUDITORY EVOKED FIELDS; N100M; P50M; MAGNETOENCEPHALOGRAPHY; FUNCTIONAL HEMISPHERIC ASYMMETRY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
10
Recensione:
Indirizzi per estratti:
Citazione:
E. Pekkonen et al., "AGE-RELATED FUNCTIONAL DIFFERENCES BETWEEN AUDITORY CORTICES - A WHOLE-HEAD MEG STUDY", NeuroReport, 6(13), 1995, pp. 1803-1806

Abstract

AUDITORY evoked magnetic fields (AEFs) were recorded from 10 healthy younger and 10 older subjects using a whole-head magnetometer. Two blocks of tone pips were presented to the left ear with constant inter-stimulus intervals (ISIs) of 0.5 and 2.5 s. The amplitude of P50m, unlike that of N100m, was larger in the older subjects. In both groups, thepeak latencies of P50m and N100m responses were significantly shorterover the contralateral than ipsilateral cortex. The interhemispheric latency difference of N100m was significantly increased with age. These findings suggest that ageing delays signal processing in the ipsilateral auditory cortex and that ageing affects consecutive AEFs in a different manner.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 12/08/20 alle ore 19:26:23