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Volume of grey brain matter significantly lower in people with Early Onset Psychosis - Video
Overview
New research from the Institute of Psychiatry, Psychology & Neuroscience has found an association between a reduction in grey matter in the brain and Early Onset Psychosis (EOP).
The study, published in Molecular Psychiatry, is the largest ever brain imaging study in EOP and has provided unprecedented levels of detail about the illness. It shows that, in contrast to other mental health disorders, people with EOP have a reduced volume of grey matter across nearly all regions of their brain. Researchers hope that this detailed mapping could be used to assist in future diagnosis, as well as to track the effects of treatment in patients with EOP.
EOP occurs before the age of 18 during a critical period of development in the brain. Individuals diagnosed with the illness are likely to experience severe and long-lasting symptoms that respond less well to treatment. Despite this, research into EOP has been limited in sample size and statistical power.
The study represents an international effort, combining brain scans from Norway, Spain, Canada, Italy, Australia & UK, 482 individuals with EOP being compared to 469 healthy controls. An analysis of the data revealed that individuals with EOP had lower volumes of grey matter in almost all regions of the brain compared to the healthy controls, with a marked effect in the left median cingulate – an area of the brain associated with the formation and processing of emotions, learning and memory.
Further analysis of the data revealed that those individuals who developed EOP at a later age had lower volumes of grey matter in a number of small brain regions compared to those with an earlier age of onset.
Shuqing Si said, “Grey matter’s primary purpose is to process information in the brain and plays a significant role in day to day functions like memory, emotions and movement. This study used specially created software (ENIGMA-VBM) developed at King’s that can accurately map where there have been local increases and decreases in brain volume. It’s allowed our team to process significantly more data and has meant that our sample reflects brain scans from many parts of the world. The effectiveness of this software means we’re now investigating the brains of those with several other disorders.”
Reference: Volume of grey brain matter significantly lower in people with Early Onset Psychosis; Molecular Psychiatry, DOI: 10.1038/s41380-023-02343-1