Assistant Professor, Department of Psychology, Indiana University, 1975-1979
Associate Professor, Department of Psychology, Indiana University, 1979-1982
Visiting Scientist, Regional Primate Research Center, University of Washington, Summer 1981
Visiting Professor, Center for Research in Human Learning, University of Minnesota, Summer, 1982
Professor, Department of Psychology, Indiana University, 1982-1984
Professor, Department of Psychology, University of Rochester, 1984-1995
Professor, Center for Visual Science, University of Rochester, 1984-present
Chair, Department of Psychology, University of Rochester, 1988-1991 (on leave, September 1988 - July 1989)
Dean, College of Arts and Science, University of Rochester, 1991-1994
Vice Provost and Dean of the College, University of Rochester, 1994-1996
Professor, Department of Brain and Cognitive Sciences, 1995-2016
Visiting Professor, Department of Psychological and Brain Sciences, Dartmouth College, Fall, 1999
Director, Center for Language Sciences, University of Rochester, 2000-2003
Director, Rochester Center for Brain Imaging, 2003-2017
William R. Kenan Professor of Brain and Cognitive Sciences, University of Rochester, 2004-2016 (Emeritus 2016-2017)
Visiting Professor, Centre for Brain and Cognitive Development, Birkbeck College, University of London, 2006-2007
Visiting Professor, Department of Brain and Cognitive Sciences, MIT, 2013-2014
Distinguished Research Scientist, Haskins Laboratories, New Haven, CT, 2017-present
Visiting Professor, Department of Psychology, Yale University, 2017--2019
Research Professor (P-T), Department of Psychology, University of Connecticut, 2017- present
Clinical Professor, Child Study Center, Yale School of Medicine, 2018-present
Research Scientist, Department of Psychology, Yale University, 2019-present