Psychological states affecting initial pupil size changes after olfactory stimulation in healthy participants.

ABSTRACT: Odor perception affects physiological and psychological states. Pupillary light reflex (PLR) parameters can be affected by olfactory stimulation and psychological states, although it remains unclear whether the olfactory stimulation-induced psychological changes can associate with PLR parameter changes. This study aimed to investigate effects of olfactory stimulation-induced psychological changes on PLR parameter changes with repeated measurements. We collected data on six mood subscales of the profile of mood states, and on five PLR parameter measurements from 28 healthy participants. Participants underwent a 10-min olfactory stimulation on different days with six odorants available with the T&T olfactometer. As obtained data were clustered, we used linear mixed-effects models for statist

SUBMITTER: Hatsukawa H 

PROVIDER: S-EPMC10520065 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature