Analyzing Confabulations in Schizophrenia and Healthy Participants

Area of Science:

• Neuroscience
• Cognitive Psychology
• Psychiatry

Background:

• Confabulations are observed in schizophrenia and severe neuropsychiatric conditions, as well as in healthy individuals.
• Understanding confabulation differences is crucial for diagnosing and treating these conditions.

Purpose of the Study:

• To investigate confabulation differences between schizophrenia patients and healthy controls using a forced confabulation paradigm.
• To explore the relationship between confabulations and cognitive functions, as well as symptom severity in schizophrenia.

Main Methods:

• A forced confabulation paradigm was employed, involving participants viewing a video with missing segments and filling gaps with speculations.
• Memory for the video story was assessed, alongside evaluations of cognitive functions and symptom severity in both schizophrenia patients (n=60) and healthy controls (n=19).

Main Results:

• Schizophrenia patients generated significantly more confabulations compared to healthy controls.
• Schizophrenic confabulations showed a greater tendency for interconnectedness and were positively associated with temporal context confusion and formal thought disorder.
• Confabulations in schizophrenia were negatively correlated with delusions.

Conclusions:

• Schizophrenia patients exhibit a higher rate of confabulation generation than healthy individuals.
• Confabulations in schizophrenia are associated with positive symptoms, specifically temporal context confusion and formal thought disorder.