Structural brain and neuropsychometric changes associated with pediatric bipolar disorder with psychosis
Anthony James1, Morgan Hough, Susan James
1Highfield Family and Adolescent Unit, Warneford Hospital Oxford Centre for Functional MRI of the Brain (FMRIB), John Radcliffe Hospital, Oxford GSK Clinical Imaging Centre, Imperial College London, London, UK. anthony.james@psych.ox.ac.uk
Bipolar Disorders
|February 16, 2011
Summary
Pediatric bipolar disorder with psychosis shows brain changes, including reduced gray matter and impaired white matter tracts, impacting memory and executive functions. These findings suggest delayed myelination in affected brain regions.
Area of Science:
- Neuroscience
- Psychiatry
- Neuroimaging
Background:
- Pediatric bipolar disorder (PBD) with psychosis is a severe mental health condition.
- Understanding the underlying brain alterations is crucial for effective treatment.
Purpose of the Study:
- To investigate neuropsychological and structural brain changes in pediatric bipolar disorder with psychosis.
- Utilize high-resolution structural and diffusion tensor imaging to identify brain alterations.
Main Methods:
- Recruited 15 pediatric bipolar disorder patients and 20 healthy controls.
- Acquired high-resolution structural and diffusion tensor imaging data.
- Analyzed data using voxel-based morphometry, tract-based spatial statistics, and probabilistic tractography.
Main Results:
- PBD patients exhibited impairments in working memory, executive function, language, and verbal memory.
- Reduced gray matter density was observed in specific cortical and cerebellar regions.
- Decreased fractional anisotropy in the anterior corpus callosum correlated with memory deficits, suggesting impaired interhemispheric prefrontal connectivity.
Conclusions:
- Widespread cortical changes and altered interhemispheric prefrontal tracts are implicated in PBD with psychosis.
- These structural changes may be associated with delayed myelination.
- Findings highlight the importance of neuroimaging in understanding PBD pathophysiology.
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