A team from Fujisawa university (Kanagawa prefecture) has published an interesting paper on the physiological effects of yuzu EO in Bioscience, biotechnology and biochemistry, volume 86, number 1, January 2022,
They observed a a calming effect after inhalation of yuzu EO which they describe as suppression of the sympathetic nervous system activity.
In other words, people felt less aggressive and at the same time less tired and more refreshed. This reaction has clear psychological consequences such as better concentration (which they measured through better oxygenation of the prefrontal cortex). So a calming effect and stimulates your attention at the same time. This work should be especially interesting for perfume.