When one explores an object with a fingertip, information is obtained from a number of sources which give rise to elementary cues that are then integrated to obtain a perception of that object. The understanding of these cues is important in order to further understand human tactile perception as well as provide insight for the development of novel and useful human-computer interfaces.

At the McGill Haptics Lab, we have developed a novel servo-controlled interface, called The Morpheotron, which allows us to study elementary tactile cues by enabling their systematic isolation from one another. The three cues that we are are able to investigate using our device - and which we believe are critical contributors to the haptic perception and processing of shape - include contact location trajectory on the fingertip, tactile flow, and proprioception.

Version-I of the Morpheotron Haptic Interface.