1. Arbib M, Érdi P, Szentagotai J. A functional overview. In: A Bradford Book, ed. Neural Organization. Cambridge, Massachusetts: The MIT Press, 1998:35–67.
2. Llinás RR. The embedding of universals through the embedding of motricity. In: A Bradford Book, ed. I of the vortex. From Neurons to Self. Cambridge, Massachusetts: The MIT Press, 2000:55.
3. von Holst E, Mittelstaedt H. Das Reafferenzprincip. Naturzvissenschaften 1950; 37:464–467.
4. Caputi AA. Contributions of electric fish to the understanding of sensory processing by reafferent systems. J Physiol Paris 2004; 98:81–97.
5. Moller P. Electric Fishes: History and Behavior. London: Chapman and Hall, 1995.