title: Suicide and impossible worlds: an empirical investigation of worlds theory.
abstract: BACKGROUND
  Suicide has a devastating impact on both survivors and society, and many obstacles to improving prevention efforts stem from our inadequate understanding of suicidality. A potential source of this shortcoming is that the majority of empirical studies focus only on a single specified etiology of suicide.
  
  
  OBJECTIVE
  To address this limitation, we present a further promising way to understand the suicidal state. We do so (1) by providing a brief review of something known as worlds theory (Bergner, 2006), and (b) by presenting the results of a study exploring the relationship between a person's taking it that his or her world is impossible/nonviable and his or her suicidal state.
  
  
  METHODS
  In this research, participants were asked to assess the perceived levels of world viability (vs. impossibility/nonviability) of 12 actual persons depicted in clinical vignettes.
  
  
  RESULTS
  As predicted, participants judged the worlds of suicidal committers significantly more nonviable than those of suicide attempters, and these in turn significantly more nonviable than those of mentally disordered but nonsuicidal persons.
  
  
  CONCLUSIONS
  These findings indicate that the worlds of suicidal persons are unlivable--in worlds terms: impossible. We discuss implications of these findings for understanding the suicidal state and for intervening therapeutically.
authors.affiliation: Department of Psychology, Ohio University, Athens, OH 45701, USA. nb243610@ohio.edu
authors.forename: Nora
authors.initials: N
authors.lastname: Bunford
authors.forename: Raymond M
authors.initials: RM
authors.lastname: Bergner
mesh_terms: D000223:Adaptation, Psychological; D000328:Adult; D000704:Analysis of Variance; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011582:Psychological Theory; D013405:Suicide / Q000523:psychology*; D013406:Suicide, Attempted / Q000523:psychology*; D055815:Young Adult