Weak beta activity links three schizophrenia symptoms — SkimNews
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- McGill University researchers found weaker and slower beta-band activity in 25 people diagnosed with schizophrenia than in 25 healthy participants.
- Participants with schizophrenia with the most pronounced beta-band abnormalities also had greater difficulty judging the timing of sights and sounds, more disorganized speech and more severe clinical symptoms.
- Hsi (Tiana) Wei said the weakened signal appeared whether participants processed sounds and sights or completed movements; the team measured it using high-resolution magnetoencephalography.
- Science Advances published “Neurophysiological dynamics related to perception, action, and language in schizophrenia” in Volume 12, Issue 43 of 2026, with DOI 10.1126/sciadv.aeh5819.
- Lena Palaniyappan said that, if the result is confirmed in larger samples, measuring the brain’s operations may help identify young people who need extra support to prevent psychosis.
- Hsi (Tiana) Wei called the 50-person study a “first, modest-size study” and said the associations with speech and clinical severity require testing in larger independent samples.
Why it matters: For schizophrenia researchers, the study ties three separately investigated symptoms to one measurable feature: weaker beta-band activity in a 25-patient comparison. Its 50-person sample makes larger independent replication the immediate requirement before this measure is considered for youth psychosis support or treatment research.
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