Titre du document / Document title

Normal aging and odor intensity effects on the olfactory event-related potential

Auteur(s) / Author(s)

COVINGTON J. W. ⁽¹⁾ ; GEISLER M. W. ⁽²⁾ ; POLICH J. ⁽³⁾ ; MURPHY C. ⁽¹⁾ ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

⁽¹⁾ Department of Psychology, San Diego State University, San Diego, CA, ETATS-UNIS
⁽²⁾ Department of Head and Neck Surgery / Otolaryngology, School of Medicine, University of California, San Diego, CA, ETATS-UNIS
⁽³⁾ Department of Neuropharmacology, The Scripps Research Institute, La Jolla, CA, ETATS-UNIS

Résumé / Abstract

Olfactory event-related potentials (OERPs) were recorded in 14 young and 14 older adults, with odor strength of isoamyl acetate manipulated to assess olfactory stimulus intensity. Young participants produced significantly larger N1/P2, N2/P3 amplitudes and shorter N1, P2 and N2 latencies than older participants. Medium- and high-odor concentrations elicited significantly shorter P2 and N2 latencies than the lowest concentration for both age groups. Odor concentration appears to affect the speed of olfactory stimulus information processing regardless of age.

Revue / Journal Title

International journal of psychophysiology   ISSN 0167-8760   CODEN IJPSEE 

Source / Source

1999, vol. 32, n^o3, pp. 205-214 (2 p.1/4)

Langue / Language

Anglais

Editeur / Publisher

Elsevier Science, Shannon, IRLANDE  (1983) (Revue)

Mots-clés anglais / English Keywords

Odor ; Event evoked potential ; Chemical stimulus ; Age ; Senescence ; Olfaction ; Stimulus intensity ; Human ; Electrophysiology ; Perception ; Developmental stage ;

Mots-clés français / French Keywords

Odeur ; Potentiel évoqué cognitif ; Stimulus chimique ; Age ; Sénescence ; Olfaction ; Intensité stimulus ; Homme ; Electrophysiologie ; Perception ; Stade développement ;

Mots-clés espagnols / Spanish Keywords

Olor ; Potencial evocado cognitivo ; Estímulo químico ; Edad ; Senescencia ; Olfación ; Intensidad estímulo ; Hombre ; Electrofisiología ; Percepción ; Grado desarrollo ;

Localisation / Location

INIST-CNRS, Cote INIST : 20304, 35400008576747.0030