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Fig. 3 | Journal of NeuroEngineering and Rehabilitation

Fig. 3

From: A multi-dimensional framework for prosthetic embodiment: a perspective for translational research

Fig. 3

Prosthetic embodiment scale: multi-sensory input and volition are evaluated in an integration process. If the integration is successful, ownership and agency arise, and embodiment is experienced. In this analogy, the successful integration of volition (red circles) and multi-sensory input (yellow circles) is visualized by the creation of water droplets and the mixing of color in the case of agency. Both ownership and agency droplets increase the weight of their respective tanks, thus contributing to prosthetic embodiment (as indicated by the lever). Full prosthetic embodiment can only be reached by experiencing both ownership and agency. Integration discrepancies (grey droplets) do not lead to ownership and/or agency and fill the tank on the other arm of the leaver reducing embodiment (the tank on the opposite side increases weight as more droplets fail to go through the integration process). Droplets leaking from the reservoirs represent a loss of accumulated ownership, agency, and error over time. The location of the ownership and agency tanks with respect to each other was done arbitrarily in the figure that is meant to serve solely as a visual analogy

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