Title :
Multidimensional electrocutaneous stimulation
Author :
Aiello, Gaetano L.
Author_Institution :
Palermo Univ., Italy
fDate :
3/1/1998 12:00:00 AM
Abstract :
Probing the subjective response to a five-parameter electrocutaneous stimulus has revealed a noisy perceptual space. A method for reducing the noise is hypothesized and experimentally tested by comparing the intensity discrimination thresholds along and off the energy gradient. Preliminary results show a reduction of the threshold of up to 60% when stimulating along the gradient. The method is exploited to implement an optimal intensity control in an electrotactile vision-substitution device
Keywords :
bioelectric phenomena; colour; mechanoception; noise; sensory aids; skin; vibrations; 5-parameter electrocutaneous stimulus; colour line; electrotactile vision-substitution device; energy gradient; homochromatic mode; intensity discrimination thresholds; multidimensional electrocutaneous stimulation; noise reduction method; noisy perceptual space; optimal intensity control; subjective response; tactile colors; Electric variables control; Fingers; Frequency; Multidimensional systems; Noise reduction; Optimal control; Pollution; Pulse modulation; Testing; Vectors;
Journal_Title :
Rehabilitation Engineering, IEEE Transactions on
