 He was head of the Laboratory of experimental psychology at the Katholieke Universiteit Leuven (Leuven) until 2012.He worked for some time with Professor William Kaye Estes at Rockefeller University (N.Y.) and lectured at the London School of Economics.In 1992, he was awarded the Francqui Prize on Human Sciences and was elected member of the Royal Flemish Academy of Belgium for Science and the Arts.