DERIVATION AND EVALUATION OF A SEMANTIC SCALE OF ORAL SENSATION MAGNITUDE WITH APPARENT RATIO PROPERTIES
DERIVATION AND EVALUATION OF A SEMANTIC SCALE OF ORAL SENSATION MAGNITUDE WITH APPARENT RATIO PROPERTIES
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DOI：
10.1093/chemse/18.6.683
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发表时间：
1993-12-01
期刊：
影响因子：
3.5
通讯作者：
GILMORE, MM
中科院分区：
文献类型：
--
作者：
GREEN, BG;SHAFFER, GS;GILMORE, MM
口腔感觉量表的构建是通过让受试者在想象的味觉和躯体感觉（例如“香蕉的甜味”，“咬舌头”）的背景下对语义描述符（例如“弱”，“强”）的感知幅度进行评级，然后根据其平均感知强度排列描述符。由此产生的量表，我们称之为口头标记量表（LMS），其特征在于其言语描述符之间的非线性间距，就像博格（1982）的类别比率量表一样，大致是对数的。通过将LMS与实验中的幅度估计方法进行比较来评估LMS，在该实验中，受试者对甜味，化学刺激和寒冷的感觉强度进行评级。由这两种方法产生的心理物理功能没有统计学差异，表明口头LMS产生的比率水平的数据可比的幅度估计。最后一个实验表明语义描述符之间的间距的重要性，通过显示的心理物理功能和感知强度的语义信息被改变时，描述符是等距的。理论和实践问题的经验方法规模建设和口头LMS的一般性和鲁棒性进行了讨论。
A scale of oral sensation was constructed by having subjects rate the perceptual magnitudes of semantic descriptors (e.g. 'weak', 'strong') within the context of imagined gustatory and somesthetic sensations (e.g. 'the sweetness of banana', 'biting the tongue'), then arranging the descriptors according to their mean perceptual intensities. The resulting scale, which we refer to as the oral labeled magnitude scale (LMS), is characterized by a non-linear spacing among its verbal descriptors that, like Borg's (1982) category-ratio scale, is roughly logarithmic. The LMS was evaluated by comparing it with the method of magnitude estimation in an experiment in which subjects rated the intensity of sensations of sweetness, chemical irritation and cold. The psychophysical functions produced by the two methods were not statistically different, indicating that the oral LMS yielded ratio-level data comparable to that produced by magnitude estimation. A final experiment demonstrated the importance of the spacing among semantic descriptors by showing that both the psychophysical functions and the semantic information about perceptual intensity were altered when the descriptors were equally spaced. Theoretical and practical issues related to the empirical approach to scale construction and the generality and robustness of the oral LMS are discussed.