The relationship between theory of mind and relational frame theory : convergence of perspective-taking measures

Objective: Perspective-taking difficulties have been demonstrated in autism and schizophrenia spectrum disorders, among other clinical presentations, and are traditionally examined from a Theory of Mind (ToM) point of view. Relational Frame Theory (RFT) offers a behavioural and contextual interpretation of perspective-taking, proposing that this ability can be studied in more detail by examining specific perspective-taking relations. To implement relational perspective-taking measures in clinical practice, it is important to gain more knowledge about how these relate to traditional measures of perspective-taking. Method: The current study is focused on the relation between the Barnes-Holmes relational perspective-taking protocol and both the Faux-pas and the Strange Stories tests, in a sample of healthy controls and individuals with an anxiety disorder or psychotic disorder. The work expands upon earlier research in this field. Results: Our results showed that, across the whole sample, the Barnes-Holmes protocol was positively correlated with both the Faux-pas and the Strange Stories tests. Furthermore, the Barnes-Holmes protocol was found to predict ToM performance. Correlations between the Strange Stories test and the Barnes-Holmes protocol were non-significant when we corrected for intelligence. Conclusions: The evidence suggests that relational perspective-taking is strongly related to ToM performances. Results are compared to other RFT studies and implications for clinical practice are discussed