A collaborative study led by McGill University researchers reveals that a single weakened beta-band brain signal correlates with multiple core schizophrenia symptoms, including disorganized speech and timing perception deficits. By evaluating high-resolution MEG scans of 25 schizophrenia patients alongside 25 healthy controls, scientists identified a potential unified neurophysiological mechanism that could aid early psychosis screening and inspire future therapeutic targets.
Beta signal changes link to schizophrenia symptoms
- ▪A study published in Science Advances found that weaker and slower beta-band brain activity is linked to multiple schizophrenia symptoms.
- ▪Researchers observed that weakened beta-band brain signals appeared consistently whether patients were processing sounds, visual stimuli, or completing movements.
- ▪Schizophrenia patients displaying the greatest beta-band brain signal differences showed increased difficulty processing the timing of sights and sounds, more disorganized speech, and greater overall clinical severity.
Potential applications for schizophrenia treatment and prevention
- ▪Lead author Hsi (Tiana) Wei noted that the identified beta-band brain signal could be explored as a future therapeutic target for schizophrenia.
- ▪Dr. Lena Palaniyappan stated that beta-band brain signal measurements could potentially identify youth seeking mental health support who require extra intervention to prevent psychosis.
Study methodology and research collaborators
- ▪Researchers tested 25 individuals with schizophrenia and 25 healthy control participants using high-resolution magnetoencephalography (MEG) imaging during audiovisual timing tasks.
- ▪The imaging study was conducted as a collaboration involving McGill University, the McConnell Brain Imaging Center, the University of Montreal, and the Douglas Research Center.
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