Marie Curie IEF: Touch and Action

To respond to a touch, it is often necessary to localize it in space, and not just on the skin. The computation of this external spatial location involves the integration of somatosensation with visual and proprioceptive information about current body posture. Failures in the encoding of this external mapping would prevent us from retrieving the correct location of tactile events, impairing normal interactions with the environment. It would be like feeling the tickle of an insect on the skin, without knowing where to reach out to swat it away. The aim of the current project is to elucidate the mechanisms whereby self-generated movements and preceding tactile information is used by the remapping system to improve tactile localization.