A deep active inference model of the rubber-hand illusion
How human perception and action deal with uncertainty has been extensively studied using the rubber-hand illusion (RHI), which introduces a sensorimotor conflict by means of a rubber hand, causing a shift in the perceived location of the real hand. A recent study showed that in addition to the drift in perception, the RHI also evokes an involuntary force at the hand in the direction of rubber hand. Seemingly congruent to this finding is the strong interdependence between perception and action found in active inference. In this work we propose a deep active inference agent which deals with high-dimensional visual inputs in a virtual environment, that is able to account for the action produced by humans under the RHI. In addition, the agent was subjected to reaching tasks, validating the proper function of the agent’s perception and action.
Faculteit der Sociale Wetenschappen