1. Toward a temperament-based approach to depression: implications for neurobiologic research;Akiskal;Advances in Biochemical Psychopharmacology,1995
2. The emergence of the bipolar spectrum: validation along clinical-epidemiologic and familial-genetic lines;Akiskal;Psychopharmacology Bulletin,2008
3. Criteria for the “soft” bipolar spectrum: treatment implications;Akiskal;Psychopharmacology Bulletin,1987
4. The evolving bipolar spectrum. Prototypes I, II, III, and IV;Akiskal;The Psychiatric Clinics of North America,1999
5. Objective assessment of circadian activity and sleep patterns in individuals at behavioral risk of hypomania;Ankers;Journal of Clinical Psychology,2009