Olfactory P3 in young and older adults

Olfactory event-related potentials (OERPs) were recorded monopolarly at the Fz, Cz, and Pz electrode sites in 16 young adults and 16 older adults to assess aging effects on the olfactory P3. Amyl acetate was used to elicit the OERPs, with an intertrial interval of 45 s. Young adults produced signifi...

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Veröffentlicht in:	Psychophysiology 1999-05, Vol.36 (3), p.281-287
Hauptverfasser:	MORGAN, CHARLIE D., GEISLER, MARK W., COVINGTON, JAMES W., POLICH, JOHN, MURPHY, CLAIRE
Format:	Artikel
Sprache:	eng
Schlagworte:	Adult Age Aged Aging - physiology Analysis of Variance Behavioral psychophysiology Biological and medical sciences Cerebral Cortex - physiology Cross-Sectional Studies Electrophysiology Evoked Potentials - physiology Female Fundamental and applied biological sciences. Psychology Humans Male OERP Olfactory Pathways - physiology Olfactory stimulus Psychology. Psychoanalysis. Psychiatry Psychology. Psychophysiology Reaction Time - physiology Single-stimulus paradigm Smell - physiology
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Beschreibung
Zusammenfassung:	Olfactory event-related potentials (OERPs) were recorded monopolarly at the Fz, Cz, and Pz electrode sites in 16 young adults and 16 older adults to assess aging effects on the olfactory P3. Amyl acetate was used to elicit the OERPs, with an intertrial interval of 45 s. Young adults produced significantly larger P3 amplitudes and shorter P3 peak latencies than older adults. The olfactory P3 response appears to be sensitive to age-related changes in the olfactory system and may reflect cognitive slowing in the central nervous system.
ISSN:	0048-5772 1469-8986 1540-5958
DOI:	10.1017/S0048577299980265