1917-1977 2015a-450 20thcentury american autobiography bio007000psy049000psy034000 biography bipolardisorder creativeability creativity depression evidence-basedmedicine geniusandmentalillness literary lowell manic-depressiveillness manic-depressivepersons mentalhealth mentalhealthlowell mentallyillpersons methods poets psychology psychopathology robert unitedstates