title: The Take Control Course: Conceptual Rationale for the Development of a Transdiagnostic Group for Common Mental Health Problems.
abstract: BACKGROUND
  Increasingly, research supports the utility of a transdiagnostic understanding of psychopathology. However, there is no consensus regarding the theoretical approach that best explains this. Transdiagnostic interventions can offer service delivery advantages; this is explored in the current review, focusing on group modalities and primary care settings.
  
  
  OBJECTIVE
  This review seeks to explore whether a Perceptual Control Theory (PCT) explanation of psychopathology across disorders is a valid one. Further, this review illustrates the process of developing a novel transdiagnostic intervention (Take Control Course; TCC) from a PCT theory of functioning.
  
  
  METHODS
  Narrative review.
  
  
  CONCLUSIONS
  Considerable evidence supports key tenets of PCT. Further, PCT offers a novel perspective regarding the mechanisms by which a number of familiar techniques, such as exposure and awareness, are effective. However, additional research is required to directly test the relative contribution of some PCT mechanisms predicted to underlie psychopathology. Directions for future research are considered.
authors.affiliation: School of Psychological Sciences, University of Manchester Manchester, UK.
authors.forename: Lydia
authors.initials: L
authors.lastname: Morris
authors.affiliation: School of Psychological Sciences, University of Manchester Manchester, UK.
authors.forename: Warren
authors.initials: W
authors.lastname: Mansell
authors.affiliation: Six Degrees Social Enterprise, CIC, The Angel Centre Salford, UK.
authors.forename: Phil
authors.initials: P
authors.lastname: McEvoy
keywords: anxiety; control theory; depression; group intervention; primary care; transdiagnostic