A distinct low-level mechanism for interaural timing analysis in human hearing

被引:15
作者
Griffiths, TD [1 ]
Elliott, C
Coulthard, A
Cartlidge, NEF
Green, GGR
机构
[1] Newcastle Univ, Sch Med, Dept Physiol Sci, Newcastle Upon Tyne NE2 4HH, Tyne & Wear, England
[2] Newcastle Univ, Sch Med, Dept Clin Neurosci, Newcastle Upon Tyne NE2 4HH, Tyne & Wear, England
[3] Newcastle Univ, Sch Med, Dept Radiol, Newcastle Upon Tyne NE2 4HH, Tyne & Wear, England
[4] Freeman Rd Hosp, Dept Med Phys, Newcastle Upon Tyne NE7 7DN, Tyne & Wear, England
基金
英国惠康基金;
关键词
auditory perception; brain stem; human; lesion;
D O I
10.1097/00001756-199810260-00009
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
THE detection of phase or timing differences, and amplitude differences between the two ears are cues for the spatial analysis of sound by humans. Previous physiological and anatomical studies of animals suggest that phase and amplitude differences between the ears may depend on different pathways, though human psychophysical studies suggest that interaural phase an amplitude differences between the two ears may be coded in the same way. Here we describe detailed psychophysical analysis of a subject with multiple sclerosis affecting the brain stem. He has a complete deficit in the detection of phase between the ears with preserved detection of interaural amplitude. The results prove that a distinct mechanism exists in humans for interaural phase detection. (C) 1998 Lippincott Williams & Wilkins.
引用
收藏
页码:3383 / 3386
页数:4
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