Document Detail

Vibrotactile masking effects on airpuff-elicited sensations vary with skin region in the human hand.
MedLine Citation:
PMID:  3423534     Owner:  NLM     Status:  MEDLINE    
Inhibitory interactions between two tactile signals take place predominantly within mechanoreceptive submodality channels. This finding was utilized in the present study to determine the mechanoreceptive channels contributing to tactile sensations elicited by brief airpuff stimuli applied to the hairy and glabrous skin of the human hand. A reaction time paradigm was used to estimate the sensitivity of four subjects to airpuffs without and during continuous vibration (masker) of low (30 Hz) or high (240 Hz) frequency. The sensitivity to airpuffs (test stimuli) was decreased by a low-frequency masker in the hairy skin and by low- and especially by high-frequency maskers in the glabrous skin. The masking effect was enhanced in both skin areas by increasing the intensity of the masker and by decreasing the intensity of the test stimulus. The results suggest that the mechanisms underlying airpuff-elicited sensations consist of the low-frequency channel in the hairy skin, and of both the low- and high-frequency channels in the glabrous skin.
J Kekoni; A Pertovaara; H Hämäläinen
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Somatosensory research     Volume:  5     ISSN:  0736-7244     ISO Abbreviation:  Somatosens Res     Publication Date:  1987  
Date Detail:
Created Date:  1988-02-12     Completed Date:  1988-02-12     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  8404780     Medline TA:  Somatosens Res     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  93-105     Citation Subset:  IM; S    
Department of Psychology, University of Helsinki, Finland.
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MeSH Terms
Mechanoreceptors / physiology*
Middle Aged
Perceptual Masking / physiology*
Physical Stimulation / methods
Reaction Time / physiology
Skin / innervation*
Skin Physiological Phenomena

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