Effect of A-Trait personality on sweetness taste preferences

概要

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The influence of trait anxiety on food taste preferences was investigated in 73 healthy university students (age 21.3±0.5 years). Participants were divided into two groups (A-Trait group and Normal group) based on their State-Trait Anxiety Inventory scores and both groups were tested for sensitivity to sweet, sour and salty tastes. Participant's emotions were assessed using the Affect-grid, and chronic stress was assessed using the Cumulative Fatigue Symptoms Index. The results of comparing test scores between the two groups indicated that the A-Trait group, in comparison to the Normal group, had a significantly higher sensitivity to sweet taste (t(61)=2.72, p<0.01). Also, the A-Trait group, compared to the Normal group, had a significantly higher arousal level (t(66)=2.04, p<0.05) and a significantly higher chronic stress level (t(71)=3.02, p<0.05). Moreover, arousal level (r=0.30, p<0.05) and chronic stress level (r=0.56, p<0.01) were correlated with trait anxiety. It is concluded that people with trait anxiety feel more stress and preferred sweet tasting food, suggesting that trait anxiety causes changes in eating habits.
日本食生活学会の論文