Polythematic Delusions and Logico-Theoretical vs. Experimentalist Turn of Mind


This article aims to contribute to cognitive therapy of polythematic delusions by proposing a preliminary step to the implementation of traditional cognitive therapy, based on the construction of alternative hypotheses to delusions and testing of the latter. This additional step resides in the construction in the patient of the necessary skills to use the general experimentalist method of knowledge acquisition. Such an approach is based on the contrast between the logico-theoretical and the experimentalist turn of mind. Some elements such as to allow any such construction in the patient are then described and analyzed.


  1. Beck, A. (2002). Delusions: A Cognitive perspective. Journal of Cognitive Psychot herapy, 164, 455–468.

    Article  Google Scholar 

  2. Bressan, P. (2002). The connection between random sequences, everyday coincidences, and belief in the paranormal. A pplied Cognitive Psychology, 16, 17–34.

    Article  Google Scholar 

  3. Kingdon, D. & Turkington, D. (1994). Cognitive-behavioural Therapy of Schizophrenia. New York: Guilford.

    Google Scholar 

  4. Kingdon, D. & Turkington, D. (Eds.) (2002). The Case Study Guide to Cognitive Behaviour Therapy of Psychosis. Chichester: Wiley.

    Google Scholar 

  5. Moritz, S., Woodward, T.S., & Metacognition Study Group. (2010). M etacognitive training for schizophrenia (MCT). Manual (4th ed.), Hamburg: VanHam Campus.

    Google Scholar 

  6. Moritz, S., Kerstan, A., Veckenstedt, R., Randjbar, S., Vitzthum, F., Schmidt, C., Heise, M., Woodward, T.S. (2011). Further evidence for the efficacy of a metacognitive group training in schizophrenia. Behaviour Research and Therapy, 49, 151–157.

    Article  PubMed  Google Scholar 

Download references

Author information



Corresponding author

Correspondence to Paul Franceschi.

Rights and permissions

Open Access  This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made.

The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.

To view a copy of this licence, visit https://creativecommons.org/licenses/by/4.0/.

Reprints and Permissions

About this article

Verify currency and authenticity via CrossMark

Cite this article

Franceschi, P. Polythematic Delusions and Logico-Theoretical vs. Experimentalist Turn of Mind. Act Nerv Super 55, 67–73 (2013). https://doi.org/10.1007/BF03379597

Download citation

Key words

  • Cognitive therapy
  • Schizophrenia
  • Delusions
  • Polythematic delusions
  • Metacognition
  • Logic