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Related Experiment Videos

Relationship between confabulation and measures of memory and executive function

J M Cunningham1, N H Pliskin, J E Cassisi

  • 1Department of Neurology, Medical College of Wisconsin, Milwaukee 53226, USA.

Journal of Clinical and Experimental Neuropsychology
|April 3, 1998
PubMed
Summary

Confabulation may stem solely from executive dysfunction, not just memory issues. This study found specific executive function deficits in high confabulators, suggesting a nuanced cause.

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Area of Science:

  • Neuroscience
  • Cognitive Psychology

Background:

  • Confabulation is traditionally linked to memory and executive deficits.
  • Emerging models suggest executive dysfunction alone may cause confabulation.

Purpose of the Study:

  • To investigate the relationship between executive functions and confabulation.
  • To differentiate the roles of memory and executive functions in confabulation.

Main Methods:

  • 110 patients with diverse diagnoses were grouped into high-, low-, and non-confabulators based on story recall.
  • Performance was assessed using memory measures and executive function tests (sustained attention, mental tracking, set-shifting, problem-solving, concept formation, verbal fluency).

Main Results:

  • High-confabulators showed significant deficits in memory and specific executive functions (sustained attention, mental tracking, set-shifting).

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  • No significant differences were found in problem-solving, concept formation, or verbal fluency between groups.

    • Conclusions:

    • Executive dysfunction, particularly in attention and cognitive flexibility, plays a key role in confabulation.
    • Confabulation may involve a dissociation within executive functions, not a global deficit.