aResearch Center for Cognitive Neurosciences, University of Auckland, Auckland
bDepartment of Psychology, University of Otago, Dunedin, New Zealand
cMedical Education Program, University of Idaho, Moscow, Idaho and
dDepartment of Veterinary and Comparative Anatomy, Pharmacology, and Physiology, Washington State University, Pullman, Washington, USA
Correspondence and requests for reprints to Mr Wesley Clapp, Psychology Department, City Campus, University of Auckland, Private Bag 92019, Auckland, New Zealand
Tel: +64 9 373 7599 ext 84249; fax: +64 9 373 7450; e-mail: [email protected]
Sponsorship: NIH grant R01 MH064508 and NZ Marsden Fund.
Received 5 January 2006; revised 23 January 2006; accepted 24 January 2006
All procedures were approved by the University of Otago Ethics Committee.