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Source flexibility in schizophrenia: specificity and role in auditory hallucinations.
Julien Laloyaux1,2,3, Clara Della Libera3, Frank Larøi1,2,3
1a Department of Biological and Medical Psychology , University of Bergen , Bergen , Norway.
Cognitive Neuropsychiatry
|October 6, 2018
Summary
Individuals with schizophrenia exhibit impaired source flexibility, a cognitive ability crucial for managing attention between internal and external thoughts. This deficit is linked to auditory hallucinations in schizophrenia patients.
Area of Science:
- Cognitive Neuroscience
- Psychiatry
Background:
- Human cognition relies on source flexibility, the ability to shift attention between internal and external stimuli.
- This cognitive mechanism is understudied, particularly in schizophrenia and its association with hallucinations.
Purpose of the Study:
- To investigate source flexibility in individuals diagnosed with schizophrenia.
- To examine the relationship between source flexibility and auditory hallucinations in schizophrenia.
Main Methods:
- Forty individuals with schizophrenia and 26 healthy controls completed tasks assessing source flexibility, cognitive flexibility, and processing speed.
- Schizophrenia patients also underwent assessment for hallucinations and delusions.
Main Results:
- Schizophrenia patients demonstrated significantly poorer source flexibility compared to healthy controls.
- Source flexibility deficits were not attributable to general impairments in processing speed or cognitive flexibility.
- Source flexibility performance was correlated with the severity of hallucinations.
Conclusions:
- Source flexibility is significantly impaired in schizophrenia.
- This cognitive deficit is implicated in the experience of auditory hallucinations in schizophrenia.
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