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Reduced insight in bipolar I disorder: neurofunctional and neurostructural correlates: a preliminary study
M Varga1, A Babovic, K Flekkoy
1Department of Acute Psychiatric Emergency Ward, Aker University Hospital, Oslo, Norway. monvarga@online.no
Journal of Affective Disorders
|December 9, 2008
Summary
Measures of insight into psychopathology in bipolar I disorder correlate with brain atrophy but not with neuroimaging measures of brain function. Future studies should examine specific cortical regions.
Area of Science:
- Neuroscience
- Psychiatry
- Medical Imaging
Background:
- Investigating the relationship between insight into psychopathology and brain structure/function in bipolar I disorder.
- Utilizing neuroimaging techniques to explore the neural underpinnings of insight in psychiatric conditions.
Purpose of the Study:
- To correlate measures of insight into psychopathology with structural and functional brain imaging findings.
- Examining the relationship between general insight, symptom awareness, and symptom attribution with brain atrophy and neurofunctioning.
Main Methods:
- Assessed insight using the Scale to Assess Unawareness of Mental Disorder (SUMD).
- Conducted resting-state single photon emission computed tomography (SPECT) and computed tomography (CT) scans.
- Compared 21 patients with DSM-IV bipolar I disorder to 21 matched healthy controls.
Main Results:
- Reduced general insight and symptom awareness significantly correlated with cortical and subcortical atrophy, respectively.
- No significant correlations were found between SPECT measures and insight.
- Symptom attribution did not show significant relationships with either structural or functional brain measures.
Conclusions:
- Insight into psychopathology, specifically general awareness and symptom awareness, is linked to brain atrophy in bipolar I disorder.
- Resting-state SPECT did not reveal correlations with insight, suggesting functional measures may require different approaches.
- Future research should focus on the structure and function of specific cortical regions, such as the frontal and parietal cortices, to better understand the neurobiology of insight.
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01:14Brain Imaging
Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans), magnetic resonance imaging (MRI), functional magnetic resonance imaging (fMRI), and Transcranial Magnetic Stimulation (TMS).
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans), magnetic resonance imaging (MRI), functional magnetic resonance imaging (fMRI), and Transcranial Magnetic Stimulation (TMS).