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This study examines the philosophical typology problem of delusions, exploring whether they are beliefs or other mental states. It clarifies existing views and introduces new classifications to advance research in psychiatry and psychology.

Keywords:
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Area of Science:

  • Philosophy of Mind
  • Cognitive Science
  • Clinical Psychiatry
  • Clinical Psychology

Background:

  • Delusions are a heterogeneous phenomenon prevalent in schizophrenia.
  • The philosophical typology problem questions the mental state underlying delusions.
  • Understanding delusions impacts psychiatric research and psychological treatments.

Purpose of the Study:

  • To critically examine current philosophical alternatives to the delusion typology problem.
  • To clarify the dominant interpretivism and functionalism viewpoints.
  • To introduce novel sub-classifications within doxastic and anti-doxastic views.

Main Methods:

  • Literature review and critical analysis of philosophical arguments.
  • Clarification of interpretivism and functionalism.
  • Introduction of revisionist/non-revisionist (doxastic) and commonsensical/non-commonsensical (anti-doxastic) distinctions.

Main Results:

  • Existing alternatives for the delusion typology problem are scattered.
  • The paper categorizes proposals into doxastic (belief-based) and anti-doxastic (non-belief-based) views.
  • New sub-distinctions refine the debate on the nature of delusions.

Conclusions:

  • The paper provides an updated examination of the delusion typology debate.
  • It highlights remaining fundamental challenges in understanding delusions.
  • This work aims to facilitate further experimental and therapeutic developments.