Temple Jennifer L, Kent Kristine M, Giacomelli April M, Paluch Rocco A, Roemmich James N, Epstein Leonard H
Division of Behavioral Medicine, Department of Pediatrics, School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Farber Hall, Room G56, 3435 Main Street, Building 26, Buffalo, NY 142124, USA.
Appetite. 2006 May;46(3):280-4. doi: 10.1016/j.appet.2006.01.012. Epub 2006 Apr 19.
Salivary responses habituate to repeated presentations of food cues, and these responses recover when new food stimuli are presented. Research suggests that within-session changes in motivated responding for food may also habituate, and motivated responding may, therefore, recover when new foods are presented. The purpose of this study was to evaluate similarities in the pattern of salivation and motivated responding for a cheeseburger stimulus in children, followed by either a novel stimulus (French fries) or another cheeseburger trial. The order of the task (salivation or motivation) was counterbalanced over days. Salivation and motivated responding for cheeseburger were reliably reduced over seven trials, and responses recovered after presentation of French fries on trial 8. Random regression models showed a significant relationship between the rate of change in motivated responding and salivation. These results provide additional support for similarities in processes that regulate salivation and motivated responding for food and strengthen support for the hypothesis that changes in motivated responding can be understood by habituation theory.
唾液反应会随着食物线索的重复呈现而产生习惯化，当呈现新的食物刺激时，这些反应会恢复。研究表明，在进食过程中，对食物的动机性反应的 session 内变化也可能会习惯化，因此，当呈现新食物时，动机性反应可能会恢复。本研究的目的是评估儿童对芝士汉堡刺激的唾液分泌模式和动机性反应的相似性，随后是新的刺激（薯条）或另一次芝士汉堡试验。任务顺序（唾液分泌或动机）在不同天数进行了平衡。在七次试验中，对芝士汉堡的唾液分泌和动机性反应可靠地减少，在第 8 次试验中呈现薯条后反应恢复。随机回归模型显示动机性反应的变化率与唾液分泌之间存在显著关系。这些结果为调节唾液分泌和对食物的动机性反应的过程中的相似性提供了额外支持，并加强了对动机性反应变化可通过习惯化理论来理解这一假设的支持。
