Andersson Linus, Sandberg Petra, Åström Elisabeth, Lillqvist Moa, Claeson Anna-Sara
Department of Psychology, Umeå University, Umeå, Sweden.
Department of Radiation Sciences, Umeå University, Umeå, Sweden.
Iperception. 2020 Dec 20;11(6):2041669520978424. doi: 10.1177/2041669520978424. eCollection 2020 Nov-Dec.
Chemical intolerance is a surprisingly prevalent condition or affliction characterized by adverse reactions to low levels of chemical, often odorous stimulation. Sufferers often assume that their plight is due to an uncommon sensory acuteness, yet studies repeatedly fail to reveal altered detection thresholds. Here, we investigated whether self-reported chemical intolerance is associated with altered sensory sensitivity or response bias. The sensory acuity (sensitivity; A) and sensory decision rule (criterion; B) to -butanol was assessed using the method of constant stimuli in 82 participants with different degrees of chemical intolerance (low to high). Higher self-reported chemical intolerance was associated with a lower criterion, but not with sensitivity.
化学不耐受是一种令人惊讶的普遍状况或病症，其特征是对低水平化学物质（通常是有气味的刺激）产生不良反应。患者常常认为他们的困境是由于一种不常见的感官敏锐度所致，然而研究反复未能揭示出检测阈值的改变。在此，我们调查了自我报告的化学不耐受是否与感官敏感性改变或反应偏差有关。我们使用恒定刺激法，对82名具有不同程度化学不耐受（从低到高）的参与者评估了对正丁醇的感官敏锐度（敏感性；A）和感官决策规则（标准；B）。自我报告的化学不耐受程度越高，与较低的标准相关，但与敏感性无关。
