Born 1946 in Spiesen, Saar. Study of German language and literature, Romance languages and philosophy, doctorate Saarbrücken Univ. (1970), German Habilitation in German Language and Literature in Heidelberg (1972), Associate Professor Heidelberg Univ. (1972), Full Professor at Frankfurt Univ. (1976), Full Professor at the Max Planck project group on psycholinguistics (1977), Director (emeritus) and Scientific Member at the Max Planck Institute for Psycholinguistics (since 1980), Honorary Professor of the universities of Frankfurt (1981), Heidelberg (1987), Peking (Bei Da) (1987), and Humboldt Univ. Berlin (1996), visiting Professor at several universities.