Metaphor Density in President ObamaâÂÂs and Governor RomneyâÂÂs Presidential Acceptance Speeches: Implications for Leadership and Conveyance of Vision Journal title: Acta Psychopathologica Authors: Jeffery Scott Mio, Ronald E Riggio, Rose E Herndier Subject(s): Psychology, Psychiatry, Medicine, General & Internal, Psychology, Multidisciplinary, Neurosciences, Pathology