Professor and head of the Department of Psychology at the Institute of Psychology at the Polish Academy of Sciences and a profesor emeritus at the University of North Florida. In 1974 he received a doctorate from the University of Warsaw and later held a Ph.D from the University of Michigan and Stanford University. In the past he worked at the University of Warsaw (1973 - 1980), the University of North Florida (1983 - 2012) and the Warsaw School of Social Psychology (2001-2013). He also visited Ohio State University, Washington University, Giessen University, the London School of Economics and the University of Oxford. He served as Dean of the Faculty of Psychology at the University of North Florida (1993-1997) and at the School of Social Psychology (2007-2012). He is a member of the European Association of Social Psychology and the Society for Experimental Social Psychology (fellow). His current scientific interests focus on analytical and intuitive ways of solving problems, cognitive representations of self and relatives, and comparative psychology.