Science, Vol. 296, No. 5573. (31 May 2002), pp. 1709-1711.
Cereb Cortex, Vol. 7, No. 4. (June 1997), pp. 327-346.
J Neurophysiol, Vol. 89, No. 5. (May 2003), pp. 2823-2838.
Science, Vol. 299, No. 5614. (21 March 2003), pp. 1898-1902.
J Neurosci, Vol. 23, No. 32. (12 November 2003), pp. 10402-10410.
Exp Brain Res (8 March 2005)
Science, Vol. 307, No. 5715. (11 March 2005), pp. 1642-1645.
Exp Brain Res, Vol. 121, No. 1. (July 1998), pp. 65-75.
Nature, Vol. 400, No. 6741. (15 July 1999), pp. 233-238.
Trends Neurosci, Vol. 24, No. 11. (November 2001), pp. 654-659.
Exp Brain Res, Vol. 154, No. 4. (February 2004), pp. 428-441.
Neuron, Vol. 44, No. 2. (14 October 2004), pp. 365-378.