摘要
The purpose of this study was to determine taste difference thresholds for sucrose in frugivorous spider monkeys and omnivorous baboons. Using a two-bottle preference test of brief duration, we presented four Ateles geoffroyi and four Papio hamdryas anubis with six different reference concentrations (RCs) of 25, 50, 100, 200, 300, and 400 mM sucrose and tested their ability to discriminate these from lower concentrations of this carbohydrate. The just noticeable differences (JNDs), expressed as Weber ratios (Δ/I), were found to range from 0.075–0.25 in the spider monkeys, with a tendency for lower values with higher Rcs. In contrast, the baboons showed the reverse trend, with the lowest Weber ratio of 0.10 at the two lowest Rcs and higher values of up to 0.25 with the highest RC tested. Thus, the JNDs were found to be generally similar in both species and at least as low as in humans. The results support the assumption that both spider monkeys and baboons may use sweetness as a criterion for food selection. The different patterns of differential sensitivity for sucrose across the range of concentrations tested suggest a correlation between the ability to discriminate between different concentrations of sucrose and the dietary habits of the two species. Am. J. Primatol. 48:153–160, 1999. © 1999 Wiley-Liss, Inc. .overlined { text-decoration: overline; } .struck { text-decoration:line-through; } .underlined { text-decoration:underline; } .doubleUnderlined { text-decoration:underline;border-bottom:1px solid #000; } 3.0.CO;2-7">Enhanced Article (HTML) 3.0.CO;2-7/epdf">Get PDF (116K)3.0.CO;2-7/pdf">Get PDF (116K) More content like thisFind more content: 3.0.CO;2-7&scope=allContent&start=1&resultsPerPage=20">like this articleFind more content written by: Matthias Laska Heinz-Peter Scheuber Edith Carrera Sanchez Ernesto Rodriguez Luna All Authors
摘要译文
本研究的目的是确定食果蜘蛛猴和杂食狒狒中蔗糖的味觉差异阈值。使用短暂的两瓶偏好测试，我们提出了四种Ateles geoffroyi和四种Papio hamdryas anubis，其中六种不同的参考浓度（RC）分别为25,50,100,200,300，和400mM蔗糖，并测试了它们从较低浓度的这种碳水化合物中区分出来的能力。表示为韦伯比（Δ/ I）的明显差异（JND），被发现范围从蜘蛛猴0.075-0.25，倾向于较低的价值与较高的Rcs。相反，狒狒呈现出相反的趋势，最低的韦伯比为0。10在两个最低的Rcs和更高的值，高达0.25与最高的RC测试。因此，发现两个物种的JND一般相似，并且至少与人类一样低。结果支持蜘蛛猴和狒狒都可以使用甜度作为食物选择标准的假设。在所测试的浓度范围内蔗糖的蔗糖浓度显示区分不同浓度的蔗糖的能力与两种物种的饮食习惯之间的相关性。[上午。 J. Primatol。 48：153-160,1999。©1999 Wiley-Liss，Inc. .overlined {text-decoration：overline; } .struck {text-decoration：line-through; } .underlined {text-decoration：underline; }。][doubleUnderlined {text-decoration：underline; border-bottom：1px solid＃000; } 3.0.CO; 2-7“增强型文章（HTML）3.0.CO; 2-7 / epdf”获取PDF（116K）3.0.CO;][2-7 / pdf“获取PDF（116K）像这样的更多内容查找更多内容：3.0.CO;]2-7＆scope \x3d allContent＆start \x3d 1＆resultsPerPage \x3d 20“像这篇文章查找更多内容撰写者：Matthias Laska Heinz-Peter Scheuber Edith Carrera Sanchez Ernesto Rodriguez Luna所有着者
Matthias Laska[1,*]; Heinz-Peter Scheuber[2]; Edith Carrera Sanchez[3] and Ernesto Rodriguez Luna[3];. Taste difference thresholds for sucrose in two species of nonhuman primates[J]. American Journal of Primatology, 1999,48(2): 153-160