Japanese cedar (Cryptomeria japonica) wood is widely used as a traditional construction material in Japan. The relationship between an individual’s perceived comfort level and a preference for Japanese cedar wood interiors is of interest. We compared volunteers’ physiological responses and subjective evaluations of wooden dwelling spaces with different wood materials: planed Japanese cedar lumber, or printed grain resin sheet overlay boards. Eighty-three subjects were asked to stay in each room for 30 min. We evaluated salivary stress markers, blood pressure, the profile of mood states-brief form (POMS), and a questionnaire that used the semantic differential method to evaluate the subjects’ feeling state for both rooms. The concentrations of the volatile organic compounds in both rooms were also quantified after the experiment. The results demonstrated that the subjects’ evaluation of each room was highly dependent on their preference; each room was evaluated more positively by subjects who preferred it. Although the subjects’ feelings were also influenced by their preference, the room with Japanese cedar did not elicit negative feelings, even from the subjects who disliked it. The subjects’ physiological responses were totally independent of their preferences. Their blood pressure decreased in the Japanese cedar room, and their salivary alpha-amylase activity was repressed in both rooms. These results indicated that the subjective evaluations were influenced in part by the subjects’ preferences, while their physiological responses were not affected. Regardless of which room the subjects preferred, the Japanese cedar room reduced the subjects’ blood pressure compared to the room with artificial materials.

中文翻译：

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不同内部材料处理和个人偏爱对生活环境中心理和生理反应的影响和相互作用

日本柳杉（Cryptomeria japonica）木材在日本被广泛用作传统建筑材料。一个人的感知舒适度与对日本雪松木内饰的偏爱之间的关系是令人感兴趣的。我们比较了志愿者对不同木质材料的木制住宅空间的生理反应和主观评估：刨光的日本雪松木材或印刷的树脂颗粒板材覆盖板。八十三名受试者被要求在每个房间呆30分钟。我们评估了唾液压力标记，血压，情绪状态-简式（POMS）的概况以及使用语义差分法评估两个房间的受试者的感觉状态的问卷。实验后还对两个房间中挥发性有机化合物的浓度进行了定量。结果表明，受试者对每个房间的评价在很大程度上取决于他们的喜好。每个房间都被喜欢它的对象更积极地评价。尽管受试者的感觉也受其偏好的影响，但使用日本雪松的房间并没有引起负面情绪，即使是不喜欢它的受试者也是如此。受试者的生理反应完全独立于他们的喜好。在日本雪松屋中，他们的血压降低了，在两个屋子中，唾液中的α-淀粉酶活性均受到抑制。这些结果表明，主观评价部分地受受试者的喜好影响，而其生理反应未受影响。不论对象选择哪个房间，