Science, Vol. 180, No. 4088. (1973), pp. 871-872.
Annals of the New York Academy of Sciences, Vol. 1104, No. 1. (May 2007), pp. 310-323.
Annals of the New York Academy of Sciences, Vol. 877, No. 1. (1999), pp. 339-367.
Progress in Neurobiology, Vol. 47, No. 2. (October 1995), pp. 105-133.
Nature, Vol. 320, No. 6058. (13 March 1986), pp. 172-176.
Neuron, Vol. 56, No. 1. (4 October 2007), pp. 141-154.
Pharmacology Biochemistry and Behavior, Vol. 65, No. 3. (March 2000), pp. 375-379.
Neural Netw, Vol. 15, No. 4-6. (l 2002), pp. 495-506.
Neuron, Vol. 46, No. 4. (19 May 2005), pp. 681-692.
Neuropsychopharmacology, Vol. 27, No. 2. (August 2002), pp. 182-193.
Neuron, Vol. 50, No. 3. (4 May 2006), pp. 443-452.
Neuroscience, Vol. 97, No. 4. (2000), pp. 703-714.
Neurosci Biobehav Rev, Vol. 30, No. 5. (2006), pp. 680-695.
Neurobiol Learn Mem, Vol. 80, No. 3. (November 2003), pp. 194-210.