Forward Modeling Mediates Motor Awareness
Carota, F., Desmurget, M., & Sirigu, A.
Forward Modeling Mediates Motor Awareness. In W. Sinnott-Armstrong, & L. Nadel (Eds.
), Conscious Will and Responsibility - A Tribute to Benjamin Libet
(pp. 97-108). Oxford: Oxford University Press.
This chapter focuses on the issue of motor awareness. It addresses three main questions: What exactly are we aware of when making a movement? What is the contribution of afferent and efferent signals to motor awareness? What are the neural bases of motor awareness? It reviews evidence that the motor system is mainly aware of its intention. As long as the goal is achieved, nothing reaches awareness about the kinematic details of the ongoing movements, even when substantial corrections have to be implemented to attain the intended state. The chapter also shows that motor awareness relies mainly on the central predictive computations carried out within the posterior parietal cortex. The outcome of these computations is contrasted with the peripheral reafferent input to build a veridical motor awareness. Some evidence exists that this process involves the premotor areas.