As a researcher, Maj is especially known for his contributions in the area of bipolar disorder, including the clinical characterization of rapid cycling,[1]mixed states,[2]
and psychotic depression,[3] and the study of the determinants of response to prophylaxis with lithium salts.[4]
He has also produced widely quoted editorials on the concept of psychiatric comorbidity,[5] conflicts of interests in psychiatry,[6] and DSM-5 operational diagnostic criteria for schizophrenia.[7]
References
^Maj M, Pirozzi R, Formicola AM, Tortorella A. Reliability and validity of four alternative definitions of rapid-cycling bipolar disorder. American Journal of Psychiatry. 1999; 156: 1421-4.
^Maj M, Pirozzi R, Magliano L, Bartoli L. Agitated depression in bipolar I disorder: prevalence, phenomenology, and outcome. American Journal of Psychiatry. 2003; 160: 2134-40.
^Maj M, Pirozzi R, Magliano L, Fiorillo A, Bartoli L. Phenomenology and prognostic significance of delusions in major depressive disorder: a 10-year prospective follow-up study. Journal of Clinical Psychiatry. 2007; 68: 1411-7.
^Maj M, Pirozzi R, Magliano L, Bartoli L. Long-term outcome of lithium prophylaxis in bipolar disorder: a 5-year prospective study of 402 patients at a lithium clinic. American Journal of Psychiatry. 1998; 155: 30-5.
^Maj M. "Psychiatric comorbidity": an artefact of current diagnostic systems? British Journal of Psychiatry. 2005; 186: 182-4.
^Maj M. Non-financial conflicts of interests in psychiatric research and practice. British Journal of Psychiatry. 2008; 193: 91-2.
^Maj M. Critique of the DSM-IV operational diagnostic criteria for schizophrenia. British Journal of Psychiatry. 1998; 172: 458-60.