Abstract：
This study aimed to investigate the responses in desire and salivation during repeated chocolate consumption, and examining how these responses are influenced by a relaxed relationship with food, or \'food legalizing\'. Salivation is often used as a proxy for desire, though evidence for this correlation is mixed. We hypothesized that both desire and salivation would decrease with repeated chocolate intake. Additionally, research has suggested that eating styles may affect habituation rates. We proposed that individuals with the food legalizing trait would habituate more rapidly to chocolate, providing an alternative mechanism to reward sensitivity associated with restrained eating. Fifty healthy-weight individuals participated in the study, consuming five blocks of chocolate (each 4 g, 22 calories) over trials. After the trials, participants were allowed to eat as much chocolate as they desired. The results showed that salivation was not correlated with self-reported desire over repeated chocolate consumption. While desire decreased with repeated intake and predicted ad libitum consumption, salivation increased and did not predict ad libitum consumption. Furthermore, food legalizing moderated the rate of responding in terms of the desire to eat but did not affect salivary flow. These findings suggest that salivation is not a reliable physiological measure of desire when eating chocolate. Instead, salivation appears to reflect sensitization to the sensory characteristics of chocolate and is less predictive of subsequent ad libitum chocolate consumption than self-reported desire. Lastly, having a carefree relationship with chocolate may help regulate its consumption, highlighting the potential benefits of a relaxed attitude toward food.
摘要：
这项研究旨在调查反复食用巧克力时的欲望和流涎反应，并研究这些反应如何受到与食物放松关系的影响，或“食物合法化”。流口水通常被用作欲望的代理，尽管这种相关性的证据好坏参半。我们假设，反复摄入巧克力，欲望和流涎都会减少。此外,研究表明，饮食习惯可能会影响习惯率。我们提出，具有食物合法化特征的人会更快地习惯巧克力，提供了一种与节制进食相关的奖励敏感性的替代机制。50名体重健康的人参与了这项研究，消耗五块巧克力（每块4克，22卡路里）超过试验。审判结束后,参与者被允许吃尽可能多的巧克力。结果表明，唾液分泌与重复食用巧克力的自我报告欲望无关。虽然欲望随着重复摄入和预测的随意摄入而降低，唾液分泌增加，不能预测随意食用。此外，食物合法化可以缓解进食欲望的反应率，但不影响唾液流量。这些发现表明，在吃巧克力时，流涎并不是一种可靠的生理欲望指标。相反，唾液分泌似乎反映了对巧克力感官特征的敏感性，与自我报告的欲望相比，对随后随意食用巧克力的预测较少。最后,与巧克力保持无忧无虑的关系可能有助于调节其消费，强调放松态度对待食物的潜在好处。
