期刊
APPETITE
卷 58, 期 3, 页码 800-805出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.appet.2012.01.026
关键词
Habituation; Sweet taste; Obesity; Hedonics; Food pleasure; Palatability; Sensory perception
资金
- Pennsylvania Department of Health
- National Institutes of Health (NIH) [DC011287]
- NIH-National Center for Research Resources (NCRR), a component of the National Institutes of Health (NIH) [UL1 RR024992, KL2RR024994]
- NIH Roadmap for Medical Research
In this study, we used a validated psychophysical tool, the hedonic general magnitude scale (hedonic gLMS), to examine whether hedonic responsivity after repetitive tasting of a sweet-tasting liquid follows a habituation pattern that is independent of adaptation to the sweet taste at the orosensory level, and whether the pattern of response is different between obese (N = 22) and lean (N = 32) women. The perceived sweet intensity and hedonic value of a 24% w/v sucrose solution was measured with the gLMS and sucrose preferences with the Monell two-series, forced-choice tracking method. Although women perceived the same intensity of sweetness across trials, obese women responded with a slower rate of habituation to the liking of repetitive sweet-taste orosensory stimulation than did lean women. Therefore, the decreased hedonic response observed in obese women cannot be explained by adaptation processes at the orosensory level or by differential perception of taste intensity or scale bias between the groups. The groups did not differ in the level of sweetness preferred. Because obesity was associated with slower patterns of habituation to the palatability elicited by sweetness in women, this characteristic could contribute to slower satiation rates, prolongation of eating episodes, and excessive food consumption in obese women. (C) 2012 Elsevier Ltd. All rights reserved.
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