THE EFFECTS OF AGING ON INFORMATION-PROCESSING CHANNELS IN THE SENSE OF TOUCH .1. ABSOLUTE SENSITIVITY

被引：114

作者：

GESCHEIDER, GA ^{[1
]}

BOLANOWSKI, SJ ^{[1
]}

HALL, KL ^{[1
]}

HOFFMAN, KE ^{[1
]}

VERRILLO, RT ^{[1
]}

机构：

[1] HAMILTON COLL,DEPT PSYCHOL,CLINTON,NY 13323

来源：

SOMATOSENSORY AND MOTOR RESEARCH | 1994年 / 11卷 / 04期

关键词：

VIBROTACTION; TACTILE PSYCHOPHYSICS; SOMESTHESIS; AGING; TACTILE CHANNELS; TOUCH; TACTILE THRESHOLDS;

D O I：

10.3109/08990229409028878

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

Thresholds for detecting vibrotactile signals of variable frequency applied to the thenar eminence of the hand by small and large contactors were measured in subjects ranging in age from 10 to 89 years. Thresholds were found to increase as a function of age, but the rate of increase was greater after than before the age of 65 years. The rate of loss of vibrotactile sensitivity was substantially greater in the P channel (mediated by Pacinian corpuscles) than in the NP I channel (mediated by rapidly adapting fibers), the NP II channel (mediated by slowly adapting type II fibers), or the NP III channel (mediated by slowly adapting type I fibers). Women were frequently found to have greater sensitivity than men.

引用

页码：345 / 357

页数：13

共 58 条

[1] INTENSITY AND FREQUENCY-CHARACTERISTICS OF PACINIAN CORPUSCLES .2. RECEPTOR POTENTIALS [J].