Introduction: Colonizing, decolonizing, and globalizing the history of psychiatry -- Colonial institutions and networks of ethnopsychiatry -- Decolonizing psychiatric institutions and networks -- Mentally ill Nigerian immigrants in the United Kingdom : the international dimensions of decolonizing psychiatry -- Schizophrenia, depression, and "brain-fag syndrome" : diagnosis and the boundaries of culture -- Gatekeepers of the mind : psychotherapy and "traditional" healers -- The paradoxes of psychoactive drugs -- Conclusion: Nigerian psychiatrists and the globalization of psychiatry.