2009 - Full Professor, Department of Cognitive Sciences, University of California, Irvine. 2005 - 2009 Associ ate Professor, Department of Cognitive Sciences, Unive rsity of California, Irvine. 2002 - 2005 Assistant Professor , Department of Cognitive Sciences, University of California, Irvine. 2005 - Joint faculty appointment with Computer Science Department, University of California, Irvine. 2005 - Joint faculty app ointment with Department of Psychology and Social Behavior, University of California, Irvine.