Davis J D, Smith G P
Department of Psychology, University of Illinois, Chicago.
Appetite. 1988 Dec;11(3):229-38. doi: 10.1016/s0195-6663(88)80005-9.
Previous work has shown that measuring the rate of ingestion of liquid diets, rather than simply volume, reveals important features of ingestive behavior which can help to explain why a particular volume of a liquid is ingested. This study is an extension of that work to a variety of different test solutions. In this study the rate of ingestion of saccharin, two different concentrations of glucose and sucrose and their mixtures with saccharin and seven different concentrations of maltose were measured. The rate functions were fit by the least-squares method to a linear function to determine the intercepts and slope constants. Analysis of how these two parameters changed with the concentration and composition of the test solutions confirms, using different test solutions, a previously reported conclusion that the initial rate of ingestion (the intercept) measures palatability and that the slope constant is a measure of the rate of development of a negative feedback satiety signal.
先前的研究表明，测量流食的摄入速率而非仅仅是摄入量，能够揭示摄食行为的重要特征，这有助于解释为什么会摄入特定体积的液体。本研究是将该工作扩展到多种不同的测试溶液。在本研究中，测量了糖精、两种不同浓度的葡萄糖和蔗糖以及它们与糖精的混合物，还有七种不同浓度的麦芽糖的摄入速率。通过最小二乘法将速率函数拟合为线性函数，以确定截距和斜率常数。分析这两个参数如何随测试溶液的浓度和成分变化，使用不同的测试溶液证实了先前报道的结论，即初始摄入速率（截距）衡量适口性，而斜率常数衡量负反馈饱腹感信号的发展速率。
