Physics – Medical Physics
Scientific paper
2009-11-25
Science 323, 5920 (2009) 1503-6
Physics
Medical Physics
25 pages, 11 figures, article + supporting material
Scientific paper
10.1126/science.1166467
In humans, the tactile perception of fine textures (spatial scale <200 micrometers) is mediated by skin vibrations generated as the finger scans the surface. To establish the relationship between texture characteristics and subcutaneous vibrations, a biomimetic tactile sensor has been designed whose dimensions match those of the fingertip. When the sensor surface is patterned with parallel ridges mimicking the fingerprints, the spectrum of vibrations elicited by randomly textured substrates is dominated by one frequency set by the ratio of the scanning speed to the interridge distance. For human touch, this frequency falls within the optimal range of sensitivity of Pacinian afferents, which mediate the coding of fine textures. Thus, fingerprints may perform spectral selection and amplification of tactile information that facilitate its processing by specific mechanoreceptors.
Debrégeas Georges
Leurent Sebastien
Prevost Alexis
Scheibert Julien
No associations
LandOfFree
The role of fingerprints in the coding of tactile information probed with a biomimetic sensor does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The role of fingerprints in the coding of tactile information probed with a biomimetic sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The role of fingerprints in the coding of tactile information probed with a biomimetic sensor will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-624037