Complex Pattern Mismatch Negativity as a Potential Indicator of Psychosis
Author Information
Author(s): Ashley M. Francis, Slaunwhite-Hay Sydney, Dempster Kara, Jaworska Natalia, Tibbo Philip G., Fisher Derek J.
Primary Institution: Dalhousie University
Hypothesis
Can complex mismatch negativity (cMMN) serve as a reliable biomarker for early phases of schizophrenia and bipolar disorder?
Conclusion
Individuals with schizophrenia exhibit reduced cMMN amplitudes, particularly pronounced in those within the first 5 years of illness.
Supporting Evidence
- Individuals with schizophrenia show reduced cMMN amplitudes compared to healthy controls.
- The effect is more pronounced in individuals within the first 5 years of their illness.
- Complex MMN paradigms may be more sensitive to early illness profiles than traditional paradigms.
Takeaway
This study found that people with schizophrenia have a harder time recognizing changes in sounds, especially early in their illness.
Methodology
A meta-analysis of studies examining cMMN in individuals with schizophrenia and bipolar disorder.
Potential Biases
Low risk of bias was assessed in the included studies.
Limitations
The analysis focused solely on schizophrenia as no eligible studies for bipolar disorder were found.
Participant Demographics
The sample consisted of 603 participants, including 298 with schizophrenia and 305 healthy controls, with 175 females.
Statistical Information
P-Value
0.47
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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