ON THE PSYCHOPHYSICAL LAW
ON THE PSYCHOPHYSICAL LAW
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DOI：
10.1037/h0046162
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发表时间：
1957-01-01
影响因子：
5.4
通讯作者：
STEVENS, SS
中科院分区：
文献类型：
--
作者：
STEVENS, SS
一般的心理物理定律是，相等的刺激比率产生相等的主观比率。一阶近似是幂函数，其指数从0.3（响度）到2.0（视觉闪光率）变化。这适用于I类（假体）或定量连续体，可通过4个标准区分：“jnd随着心理量的增加而增加主观大小，类别评级尺度在与心理量绘制时向下凹，比较判断表现出时间顺序错误......，等分实验表现出滞后”（明显感觉差异的滞后）。II类（复分解）或定性连续体在这4个标准中缺乏。心理量表的基础上的直接比例的方法优于费希纳的方法，如配对比较的方法。75篇参考文献。（PsycInfo数据库记录（c）2016阿帕，保留所有权利）
The general psychophysical law is that equal stimulus ratios produce equal subjective ratios. A first-order approximation is a power function whose exponent varies from 0.3 (loudness) to 2.0 (visual flash rate). This holds for Class I (prothetic) or quantitative continua, distinguishable by 4 criteria:" the jnd increases in subjective size as psychological magnitude increases, category rating-scales are concave downwards when plotted against psychological magnitude, comparative judgments exhibit a time-order error…, and equisection experiments exhibit hystersis"(a lagging behind of apparent sense differences). Class II (metathetic) or qualitative continua are lacking in these 4 criteria. Psychological scales based on direct ratio methods are better than Fechnerian methods, eg, method of paired comparisons. 75 references.(PsycINFO Database Record (c) 2016 APA, all rights reserved)