Nordin S
Institute of Environmental Medicine, Karolinska Institute, Stockholm, Sweden.
Percept Psychophys. 1994 Feb;55(2):180-9. doi: 10.3758/bf03211665.
Context effects, intraindividual variability, and internal consistency of intermodal joint scaling with magnitude estimation ("magnitude matching") were studied by instructing 12 subjects to judge the three pairs of odor intensity, loudness, and brightness on a common scale of perceived intensity as well as to judge odor intensity separately (unimodal magnitude estimation). Significant context effects were found by comparing odor intensity judgments obtained by separate versus intermodal joint scaling as well as across different modalities (loudness vs. brightness) in joint scaling. But no such effects were found for loudness or brightness when compared across modality of joint scaling. Intraindividual variability in the estimates imply about equal reliability in intermodal joint scaling and separate scaling. Good internal consistency was found, indicating that subjects are successful in expressing perceived intensities of different modalities on a common scale.
通过指导12名受试者在共同的感知强度量表上判断三对气味强度、响度和亮度，并分别判断气味强度（单峰量级估计），研究了情境效应、个体内变异性以及多峰联合标度与量级估计（“量级匹配”）的内部一致性。通过比较单独标度与多峰联合标度获得的气味强度判断，以及联合标度中不同模态（响度与亮度）之间的气味强度判断，发现了显著的情境效应。但在联合标度的不同模态之间比较时，响度或亮度没有发现此类效应。估计中的个体内变异性意味着多峰联合标度和单独标度具有大致相同的可靠性。发现了良好的内部一致性，表明受试者能够成功地在共同量表上表达不同模态的感知强度。
