Covington J W, Geisler M W, Polich J, Murphy C
Department of Psychology, San Diego State University, CA 92120-4913, USA.
Int J Psychophysiol. 1999 Jun;32(3):205-14. doi: 10.1016/s0167-8760(99)00012-4.
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.
对14名年轻成年人和14名年长成年人记录嗅觉事件相关电位（OERP），通过控制乙酸异戊酯的气味强度来评估嗅觉刺激强度。年轻参与者产生的N1/P2、N2/P3波幅显著大于年长参与者，且N1、P2和N2潜伏期显著短于年长参与者。对于两个年龄组，中等和高气味浓度引起的P2和N2潜伏期显著短于最低浓度时的潜伏期。无论年龄如何，气味浓度似乎都会影响嗅觉刺激信息处理的速度。
