Stimulus satiation: effects of repeated exposure to foods on pleasantness and intake
Stimulus satiation: effects of repeated exposure to foods on pleasantness and intake
复制标题
DOI：
10.1006/appe.2001.0442
复制
发表时间：
2002-02-01
期刊：
影响因子：
5.4
通讯作者：
Nabb, S
中科院分区：
文献类型：
--
作者：
Hetherington, MM;Pirie, LM;Nabb, S
频繁和反复地接触食物会产生刺激性饱腹感或单调。进一步探索刺激满足感的本质。进行了两个实验。实验一考察了初始愉悦感和摄食频率对单调性的影响。测试表明，面包和黄油吃得更频繁，但比巧克力更不受欢迎。因此，体重正常、健康的男性被随机分配到巧克力组(CC，N=13)或面包加黄油组(BC，N=16)。所有受试者在22天内每天摄入固定数量的食物(67克1473千焦的巧克力或95克1355千焦的面包和黄油)。在第1天、第8天、第15天和第22天，受试者随意食用这种食物。随着时间的推移，对猫巧克力的口感和欲望显著下降，但对于面包和黄油却没有这样的变化。实验2测试了摄入量。53名受试者在15天的时间里对猫巧克力的愉悦和渴望，有3个条件：对照组(CS：n=15)。固定(FS：n=20)和可变(vs：n=18)。除了测试日(1.8天和15天)，CS没有收到任何巧克力。FS每天摄入67g，1473kJ的巧克力，而VS每天摄入的巧克力量从第一天的57g，1251kJ增加到第12天的86g/1888kJ。随着时间的推移，快感和吃巧克力的欲望下降，这在F和V受试者中更加明显。然而，随著时间的推移，自由发挥的摄入量增加了。这两个实验都显示了猫巧克力的愉悦感和欲望发生了显著变化。但吸纳量没有相应的下降。因此。尽管快感和对吃巧克力的欲望的主观评分出现了刺激性饱足感，但摄入量仍然没有受到影响。这种愉悦和摄取之间的明显分离可能反映了潜在的喜好和渴望的不同过程。(C)2002年爱思唯尔科学有限公司。
Frequent and repeated exposure to foods produces stimulus satiation or monotony. To explore further the nature of stimulus satiation. two experiments were conducted. Experiment I investigated the influence of initial pleasantness and frequency of intake on monotony. Tests showed that bread and butter was eaten more frequently but v.,as liked less than chocolate. Therefore, normal-weight, healthy males ere randomly assigned to either a chocolate condition (CC, N=13) or bread and butter condition (BC, N=16). All subjects received fixed amounts of the assigned food (67 g 1473 kJ of chocolate or 95 g 1355 kJ of bread and butter) every day for 22 days. On days 1. 8. 15 and 22 subjects consumed this food ad libitum. Pleasantness of taste and desire to cat chocolate declined significantly over time but no such changes ",ere observed for bread and butter. Experiment 2 examined intake. pleasantness and desire to cat chocolate in 53 subjects over a 15 day period, with 3 conditions: control (CS: N = 15). fixed (FS: N = 20) and variable (VS: N = 18). CS received no chocolate except on test days (days 1. 8 and 15). FS received 67 g,, 1473 kJ of chocolate daily and VS received increasing amounts of chocolate from 57 g, 1251 kJ on day I to 86 g/1888 kJ by day 12. Pleasantness and desire to eat chocolate declined over time with this being more pronounced for F and V subjects. However, ad libitum intake increased over time. Both experiments demonstrated significant changes in pleasantness and desire to cat chocolate. but no commensurate decline in intake. Thus. although stimulus satiation occurred for subjective ratings of pleasantness and desire to eat chocolate, intake remained unaffected. This apparent dissociation between pleasantness and intake may reflect different processes underlying liking and wanting. (C) 2002 Elsevier Science Ltd.