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EyeMusic Sensory Substitution Device enables the blind to 'see' colors and shapes
Date:2/4/2014

Amsterdam, NL, February 4, 2014 Using auditory or tactile stimulation, Sensory Substitution Devices (SSDs) provide representations of visual information and can help the blind "see" colors and shapes. SSDs scan images and transform the information into audio or touch signals that users are trained to understand, enabling them to recognize the image without seeing it.

Currently SSDs are not widely used within the blind community because they can be cumbersome and unpleasant to use. However, a team of researchers at the Hebrew University of Jerusalem have developed the EyeMusic, a novel SSD that transmits shape and color information through a composition of pleasant musical tones, or "soundscapes." A new study published in Restorative Neurology and Neuroscience reports that using the EyeMusic SSD, both blind and blindfolded sighted participants were able to correctly identify a variety of basic shapes and colors after as little as 2-3 hours of training.

Most SSDs do not have the ability to provide color information, and some of the tactile and auditory systems used are said to be unpleasant after prolonged use. The EyeMusic, developed by senior investigator Prof. Amir Amedi, PhD, and his team at the Edmond and Lily Safra Center for Brain Sciences (ELSC) and the Institute for Medical Research Israel-Canada at the Hebrew University, scans an image and uses musical pitch to represent the location of pixels. The higher the pixel on a vertical plane, the higher the pitch of the musical note associated with it. Timing is used to indicate horizontal pixel location. Notes played closer to the opening cue represent the left side of the image, while notes played later in the sequence represent the right side. Additionally, color information is conveyed by the use of different musical instruments to create the sounds: white (vocals), blue (trumpet), red (reggae organ), green (synthesized reed), yellow (violin); black is represented by silen
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Contact: Daphne Watrin
d.watrin@iospress.nl
31-206-883-355
IOS Press
Source:Eurekalert  

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