Cd. Morgan et al., OLFACTORY EVENT-RELATED POTENTIALS - OLDER MALES DEMONSTRATE THE GREATEST DEFICITS, Electroencephalography and clinical neurophysiology. Evoked potentials, 104(4), 1997, pp. 351-358
Olfactory event-related potentials (OERPs) were recorded monopolarly a
t the Fz, Cz, and Pz electrode sites in 16 young adults (8M/8F) and 16
older adults (8M/8F) with inter-stimulus intervals (ISI) of 45, 60 an
d 90 s using amyl acetate as the odorant stimulus, N1, P2, and N2 peak
amplitudes and latencies were measured, Young participants demonstrat
ed significantly shorter peak latencies than older participants, Older
males demonstrated significantly smaller peak amplitudes than the oth
er participant groups. Peak amplitudes also increased with longer ISIs
for older males. The OERP is compared to traditional olfactory psycho
physical testing. (C) 1997 Elsevier Science Ireland Ltd.