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Touch and Hearing Mediate Osseoperception

Journal article
Authors Francesco Clemente
Bo Håkansson
Christian Cipriani
Johan Wessberg
Katarzyna Kulbacka-Ortiz
Rickard Brånemark
K. J. F. Jansson
Max Jair Ortiz-Catalan
Published in Scientific Reports
Volume 7
ISSN 2045-2322
Publication year 2017
Published at Institute of Neuroscience and Physiology, Department of Physiology
Language en
Links doi.org/10.1038/srep45363
Keywords reaction-time, frequency discrimination, vibrotactile thresholds, vibration threshold, hairy skin, limb, osseointegration, rehabilitation, transmission, stimulation, Science & Technology - Other Topics
Subject categories Physiology

Abstract

Osseoperception is the sensation arising from the mechanical stimulation of a bone-anchored prosthesis. Here we show that not only touch, but also hearing is involved in this phenomenon. Using mechanical vibrations ranging from 0.1 to 6 kHz, we performed four psychophysical measures (perception threshold, sensation discrimination, frequency discrimination and reaction time) on 12 upper and lower limb amputees and found that subjects: consistently reported perceiving a sound when the stimulus was delivered at frequencies equal to or above 400 Hz; were able to discriminate frequency differences between stimuli delivered at high stimulation frequencies (similar to 1500 Hz); improved their reaction time for bimodal stimuli (i.e. when both vibration and sound were perceived). Our results demonstrate that osseoperception is a multisensory perception, which can explain the improved environment perception of bone-anchored prosthesis users. This phenomenon might be exploited in novel prosthetic devices to enhance their control, thus ultimately improving the amputees' quality of life.

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