Michael received a diploma in Psychology, University Munster, 1967. Doctor of Philosophy, University Munster, 1968. Habilitation, University Munster, 1972.
Michael worked as an assistant at the University of Munster from 1967 to 1972. Associate professor from 1972 to 1980. Professor at the University of Bremen, since 1980.
Member Deutsche Gesellschaft fuer Psychologie, Deutsche Gesellschaft fuer Psychophysiologie, Gesellschaft fuer Gestalt Theorie (editor).
Michael married to Heide Buttgereit (divorced in 1978). Children: Christoph, Lena, Leif. Married Sonja Gehring (divorced in 1992).