Christopher Pryce
Behavioural Neurobiology Laboratory
Swiss Federal Institute of Technology Zurich
Schorenstr. 16
CH-8603 Schwerzenbach
Switzerland
Tel.: +41 (0) 1 655 7386
Fax: +41 (0) 1 655 7203
e-mail: pryce@behav.biol.ethz.ch
homepage: www.behav.ethz.ch