SENSORY CODING OF 2D DRAWINGS IN HUMANS: A COMPUTERISED AUDIO-VISUAL DEMONSTRATION

It is not easy to illustrate 2D drawing figures as variations in time of X and Y co-ordinates in normal static figures. For that reason, we developed a computer controlled audio-visual software permitting the audience to follow, in real time, the ongoing drawing movement together with two individual muscle spindle spike trains (e.g., Efrom an ago/antagonist pair of muscles). Furthermore, each spike was converted to an auditory signal similar to that heard during actual neurophysiological experiments. With this software, it was possible to get a global understanding of how a complex drawing movement (such as square, circle, triangle etc…) is coded by the sensory system in humans.