Psychophysical laws revealed by electric hearing.
Psychophysical laws revealed by electric hearing.
复制标题
电听觉揭示的心理物理定律。
DOI：
10.1097/00001756-199906230-00025
复制
发表时间：
1999
期刊：
影响因子：
1.7
通讯作者：
Shannon,RV
中科院分区：
文献类型：
--
作者：
Zeng,FG;Shannon,RV
PSYCHOPHYSICAL laws relate the intensity of a physical stimulus to its perceived magnitude. GT Fechner hypothesized 150 years ago that the psychophysical law can be derived by measuring intensity discrimination, but modern scientists favor a direct magnitude estimation approach and are still divided on whether and how intensity discrimination is related to sensation magnitude. This controversy is partially due to the uncertainty of the role of the sensory organ in the psychophysical law. Here we bypass the auditory sensory organ with electric stimulation of the human auditory nerve and find a close coupling between intensity discrimination and loudness functions in electric hearing. Our results support Fechner's hypothesis in principle but not the exact relationship from which he derived his logarithmic law.
