Olfactory p3 in young and older adults

Academic Article

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• Research
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Overview

authors

• Morgan, C. D.
• Geisler, M. W.
• Covington, J. W.
• Polich, John
• Murphy, C.

publication date

• 1999

journal

• Psychophysiology  Journal

abstract

• 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.

subject areas

• Adult
• Aged
• Aging
• Analysis of Variance
• Cerebral Cortex
• Cross-Sectional Studies
• Evoked Potentials
• Female
• Humans
• Male
• Olfactory Pathways
• Reaction Time
• Smell

Research

keywords

• OERP
• P3
• age
• olfactory stimulus
• single-stimulus paradigm

Identity

International Standard Serial Number (ISSN)

• 0048-5772

Digital Object Identifier (DOI)

• 10.1017/s0048577299980265

PubMed ID

• 10352551

Additional Document Info

start page

• 281

end page

• 287

volume

• 36

issue

• 3