An investigation of search behaviour in a tactile exploration task for sighted and non-sighted adults.

In this work in progress we propose a new method for evaluating objectively the process of performing a tactile exploration with a visuo-tactile sensory substitution system. Both behavioral and neurophysiological cues are considered to evaluate the identification process of virtual objects and surrounding environments. Our experiments suggest that both sighted and visually impaired users integrated spatial information and developed similar behavioural and neurophysiological patterns. The proposed method could also serve as a tool to evaluate touch-based interfaces for application in orientation and mobility programs.