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Summary

This study investigated mediumistic writing, where mediums claim to communicate with deceased individuals. Under controlled conditions, mediums did not provide evidence of anomalous information reception, suggesting current methods may lack ecological validity.

Keywords:
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Area of Science:

  • Psychology
  • Neuroscience
  • Parapsychology

Background:

  • Mediumship involves individuals (mediums) claiming communication with spiritual entities.
  • Recent research explores psychological, psychiatric, and neuroscientific aspects of mediumship.
  • Studies examine claims of mediums accessing anomalous information from deceased individuals.

Purpose of the Study:

  • To evaluate evidence for anomalous information reception in mediumistic writing (psychographic letters).
  • To assess claims under strictly controlled experimental conditions.

Main Methods:

  • Eight mediums and 94 sitters participated in 18 blind proxy sitter sessions.
  • Sitters received target mediumistic letters and five control letters.
  • Sitters blindly scored letter accuracy globally and for verifiable items.

Main Results:

  • No significant difference found in global or specific scores between target and control letters.
  • Mediums did not demonstrate anomalous information provision under controlled conditions.
  • Results question the validity of anomalous information claims in this context.

Conclusions:

  • The study found no evidence for anomalous information reception in mediumistic writing under controlled conditions.
  • A balance between ecological validity and experimental control is advocated for future research.
  • Further investigation is needed to reconcile findings with subjective experiences of mediumship.