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Titolo:
ERP INDEXES OF AUDITORY SELECTIVE ATTENTION IN AGING AND PARKINSONS-DISEASE
Autore:
KARAYANIDIS F; ANDREWS S; WARD PB; MICHIE PT;
Indirizzi:
MACQUARIE UNIV,SCH BEHAV SCI SYDNEY NSW 2109 AUSTRALIA PRINCE WALES HOSP,DEPT PSYCHIAT SYDNEY NSW AUSTRALIA UNIV NEW S WALES,SCH PSYCHOL SYDNEY NSW AUSTRALIA
Titolo Testata:
Psychophysiology
fascicolo: 4, volume: 32, anno: 1995,
pagine: 335 - 350
SICI:
0048-5772(1995)32:4<335:EIOASA>2.0.ZU;2-O
Fonte:
ISI
Lingua:
ENG
Soggetto:
EVENT-RELATED POTENTIALS; ADULT AGE-DIFFERENCES; LATENCY VARIABILITY; FEATURE-INTEGRATION; COGNITIVE FUNCTION; PERCEPTUAL NOISE; ELDERLY SUBJECTS; ALZHEIMER-TYPE; VISUAL-SEARCH; P3 COMPONENT;
Keywords:
EVENT-RELATED POTENTIALS; AUDITORY SELECTIVE ATTENTION; AGING; PARKINSONS DISEASE;
Tipo documento:
Review
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
103
Recensione:
Indirizzi per estratti:
Citazione:
F. Karayanidis et al., "ERP INDEXES OF AUDITORY SELECTIVE ATTENTION IN AGING AND PARKINSONS-DISEASE", Psychophysiology, 32(4), 1995, pp. 335-350

Abstract

In the present study, we compared the performance of normal subjects in three age groups and of medicated Parkinson's disease patients on auditory selective attention processes. Two tone sequences were dichotically presented. Subjects responded to deviant tones in the attended location. Event-related potentials (ERPs) were recorded from nine scalpelectrodes. The old group showed significant decline in hit rate, increase in N1 amplitude, and reduction in P3a, P3b, target negativity, and mismatch negativity amplitude. The amplitude and duration of late Nd increased with age, reflecting modulation of both attended and unattended standard ERPs. Although the middle group showed a similar pattern of ERP changes, the effects were generally nonsignificant. The Parkinson's disease group showed little further disruption of behavioral orERP measures. However, Parkinson's disease affected late Nd in the direction opposite of that of aging, reflecting differential modulation of unattended standard positivity.

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Documento generato il 15/07/20 alle ore 12:34:23