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Touch and Hearing Mediate Osseoperception

F. Clemente ; Bo Håkansson (Institutionen för signaler och system, Medicinska signaler och system) ; C. Cipriani ; J. Wessberg ; K. Kulbacka-Ortiz ; R. Branemark ; Karl-Johan Fredén Jansson (Institutionen för signaler och system, Medicinska signaler och system) ; Max Jair Ortiz-Catalan (Institutionen för signaler och system, Medicinska signaler och system)
Scientific Reports (2045-2322). Vol. 7 (2017), p. 45363.
[Artikel, refereegranskad vetenskaplig]

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.

Nyckelord: reaction-time, frequency discrimination, vibrotactile thresholds, vibration threshold, hairy skin, limb, osseointegration, rehabilitation, transmission, stimulation



Denna post skapades 2017-04-28. Senast ändrad 2017-06-12.
CPL Pubid: 249009

 

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Institutioner (Chalmers)

Institutionen för signaler och system, Medicinska signaler och system (2005-2017)

Ämnesområden

Medicinteknik

Chalmers infrastruktur