Abstract
Wine is not only a widely consumed beverage but also a sensory and psychoactive experience influenced by individual characteristics. This study aims to investigate the extent to which personality traits and mental health conditions affect the perception of taste and the psychoactive effects of organic and traditional wine. Specifically, we examine whether differences in wine perception and effects can be attributed to the wine's production method or to individual psychological traits. A total of 133 regular wine consumers participated in a double-blind study, consuming both organic and traditional wine in separate sessions. They rated taste characteristics (intensity, duration, and pleasantness) and the stimulant and sedative effects of each wine. Additionally, personality traits (Big Five and Dark Triad) and mental health conditions (happiness, anxiety, and depression) were assessed to explore their impact on wine perception and effects. Results showed no significant differences in taste intensity or pleasantness between organic and traditional wine, with only a weak difference in taste duration, where traditional wine had a slightly longer-lasting flavor. However, differences emerged in wine effects: organic wine induced a higher stimulant effect, while traditional wine produced stronger sedative effects. Personality traits and mental health played a key role in shaping these effects. Machiavellianism and happiness were associated with increased stimulation for both wine types, while narcissism predicted higher stimulant effects only for organic wine. In contrast, sedative effects were linked to higher levels of narcissism and depression, with extraversion reducing sedative responses in traditional wine. These findings suggest that wine perception is not solely determined by its chemical composition but is shaped by individual psychological factors. This research highlights the importance of considering personality and mental health in understanding consumer experiences, offering insights for both the wine industry and psychological research on alcohol-related behaviors.