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Single Tactile Afferents Outperform Human Subjects in a Vibrotactile Intensity Discrimination Task

Arabzadeh, Ehsan; Clifford, Colin W.G.; Harris, Justin A; Mahns, David; Macefield, Vaughan; Birznieks, Ingvars

Description

We simultaneously compared the sensitivity of single primary afferent neurons supplying the glabrous skin of the hand and the psychophysical amplitude discrimination thresholds in human subjects for a set of vibrotactile stimuli delivered to the receptive field. All recorded afferents had a dynamic range narrower than the range of amplitudes across which the subjects could discriminate. However, when the vibration amplitude was chosen to be within the steepest part of the afferent’s...[Show more]

CollectionsANU Research Publications
Date published: 2014
Type: Journal article
URI: http://hdl.handle.net/1885/37944
Source: Journal of Neurophysiology
DOI: 10.1152/jn.00482.2014

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