Brain Wave Signature Tied to Self-Harm in Depressed Teens
Researchers in China compared 84 adolescents diagnosed with major depressive disorder — half with a history of self-harm, half without — using resting-state EEG to analyze "microstates," brief recurring patterns of brain electrical activity. The teens with self-harm history showed unusually prolonged activity in one network pattern (Microstate Class B, associated with visual processing), plus altered switching between brain networks. These neural features were statistically coupled with more severe depression, higher reported social support, and weaker attachment to fathers. The authors caution these are candidate markers needing validation in larger, multi-center studies, not diagnostic tools. Source: ScienMag
Genetic Links to ADHD, Autism and Depression Changed With Age
A study in Molecular Psychiatry tracked 8,591 participants in the UK's Avon Longitudinal Study of Parents and Children, comparing polygenic scores for six conditions against peer problems, suicidality, education, and employment at ages 10–13, 16, and 24–25. Genetic liability to ADHD showed the broadest pattern — linked to peer and educational/employment difficulties across all three life stages — while depression-related genetic liability mattered more from adolescence onward. The authors note outcome measures differed across ages, so stage-to-stage comparisons are limited. Source: News-Medical
Gut Microbiome May Drive Immune-Brain Changes in Schizophrenia
University of Coimbra researchers transplanted gut microbiota from schizophrenia patients into mice, which then developed gut inflammation, a skewed immune profile, microglial activation in the prefrontal cortex, and behaviors such as hyperactivity, impaired working memory, and reduced social interaction. Post-mortem analyses of patient brains showed similar immune changes. Published in Translational Psychiatry on October 5, 2026. This is a mechanistic animal model, not a treatment — microbiota-targeted therapies remain conceptual. Source: Translational Psychiatry