Objects can be localized by whisking rats with a hyperacuity precision. This process takes several iterative whisking cycles in which the rat palpates the objects. I will describe the motor-sensory encoding process underlying object localization, possible mechanisms for recoding by central (mostly thalamocortical) circuits, and characteristics of motor-sensory loop behavior. I will argue, and present data suggesting that perception emerges from a convergence process that lasts about 4 motor-sensory cycles. These data will serve as a basis for an open discussion with the students about perception being 'direct', 'indirect', or 'looped'.

Video registration (1h30min)