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The Briefing · Psychiatry & Cognitive Neurology

Continuous newsroom coverage of evidence in Psychiatry & Cognitive Neurology — newest first.

This week

24 stories
  1. Biallelic EIPR1 Variants Cause Neurodevelopmental Syndrome and Neutropenia
    Brain ·Preclinical Study · May 18, 2026

    Biallelic EIPR1 Variants Cause Neurodevelopmental Syndrome and Neutropenia

    Defects in endosomal recycling and dense core vesicle biogenesis drive a spectrum of microcephaly, ataxia, and spasticity.

  2. Hong Kong Genome Project Identifies Population-Specific Genetic Variants, Informs Prescriptions
    Nature Medicine ·Cohort Study · May 17, 2026

    Hong Kong Genome Project Identifies Population-Specific Genetic Variants, Informs Prescriptions

    A large-scale genomic initiative in the Chinese population reveals diagnostic rates for rare diseases and pharmacogenomic insights.

  3. Psychotherapy Benefits for Depression Persist for Years, Meta-analysis Shows
    World Psychiatry ·Meta-Analysis · May 17, 2026

    Psychotherapy Benefits for Depression Persist for Years, Meta-analysis Shows

    A comprehensive meta-analysis clarifies the long-term trajectory of psychotherapy's effectiveness for adult depression, showing sustained benefits.

  4. African Ancestry Parkinson’s Disease Linked to Distinct GBA1 and LRRK2 Variants
    Brain ·Cohort Study · May 17, 2026

    African Ancestry Parkinson’s Disease Linked to Distinct GBA1 and LRRK2 Variants

    Genetic screening of 710 African ancestry cases reveals that common European risk variants are absent, replaced by population-specific mutations.

  5. Sternal Vibration Plus Mindfulness Improves Body Awareness, White Matter in Trauma
    Neuropsychopharmacology ·Non-Randomized Controlled Trial · May 17, 2026

    Sternal Vibration Plus Mindfulness Improves Body Awareness, White Matter in Trauma

    A study in trauma-exposed adults found sternal vibration combined with mindfulness meditation enhanced interoceptive awareness and increased neurite.

  6. Axonic Spines on Axon Initial Segment Initiate Action Potentials, Route Information
    Nature Neuroscience ·Animal Study · May 17, 2026

    Axonic Spines on Axon Initial Segment Initiate Action Potentials, Route Information

    A new study in mice identifies axonic spines as a mechanism for precise action potential generation and directed neural circuit communication.

  7. Social Rank Modulates Empathic Pain via ACC-NAcC Circuit in Mice
    Molecular Psychiatry ·Animal Study · May 17, 2026

    Social Rank Modulates Empathic Pain via ACC-NAcC Circuit in Mice

    A specific glutamatergic pathway and molecular target influence empathic pain responses based on social hierarchy.

  8. APOE ε2 and ε4 Drive Alzheimer's Risk Through Distinct Molecular Pathways
    Nature Aging ·Cohort Study · May 17, 2026

    APOE ε2 and ε4 Drive Alzheimer's Risk Through Distinct Molecular Pathways

    A multicohort proteomic analysis reveals allele-specific protein signatures influencing Alzheimer's disease risk and progression.

  9. CTBS to Right DLPFC Reduces Heavy Drinking Relapse Risk in AUD Over 12 Months
    Biological Psychiatry ·Randomized Controlled Trial · May 17, 2026

    CTBS to Right DLPFC Reduces Heavy Drinking Relapse Risk in AUD Over 12 Months

    Continuous theta-burst stimulation to the right DLPFC lowered heavy-drinking relapse risk in AUD over 12 months in a randomized trial.

  10. SSRIs Induce Spatially Distinct Molecular Changes in Dorsal Raphe Serotonin Neurons
    Molecular Psychiatry ·Animal Study · May 17, 2026

    SSRIs Induce Spatially Distinct Molecular Changes in Dorsal Raphe Serotonin Neurons

    A mouse study reveals how fluoxetine alters gene expression and neuropeptide levels in specific serotonergic subpopulations.

  11. CANMAT and ICOCS launch 2025 international guideline for Obsessive-Compulsive Disorder
    CANMAT/ICOCS ·Clinical Guideline · May 17, 2026

    CANMAT and ICOCS launch 2025 international guideline for Obsessive-Compulsive Disorder

    New joint guidelines establish a clear, tiered algorithm for OCD management, solidifying first-line options and defining evidence-based augmentation.

  12. Autism Subtypes Linked to Distinct Brain Connectivity and Biological Pathways
    Nature Neuroscience ·Animal Study · May 17, 2026

    Autism Subtypes Linked to Distinct Brain Connectivity and Biological Pathways

    A cross-species neuroimaging study identifies two replicable autism subtypes with specific functional connectivity patterns and biological underpinnin

  13. Simvastatin Rescues Cognitive Impairment in Alzheimer's Model via Epigenetic and Synaptic Pathways
    Neuropsychopharmacology ·Animal Study · May 17, 2026

    Simvastatin Rescues Cognitive Impairment in Alzheimer's Model via Epigenetic and Synaptic Pathways

    A preclinical study in mice identifies specific molecular mechanisms by which simvastatin may improve cognitive function in Alzheimer's disease.

  14. Somatic Symptoms, Sensory Dysregulation Are Core to PTSD Presentation
    World Psychiatry ·Narrative Review · May 17, 2026

    Somatic Symptoms, Sensory Dysregulation Are Core to PTSD Presentation

    Current PTSD treatments often fall short because they overlook the central role of physical sensations and sensory processing.

  15. ED Nudge Strategy Increases Naltrexone Prescribing for Alcohol Misuse
    Annals of emergency medicine ·Non-Randomized Controlled Trial · May 17, 2026

    ED Nudge Strategy Increases Naltrexone Prescribing for Alcohol Misuse

    A multicomponent emergency department protocol significantly raised naltrexone initiation for patients with alcohol-related diagnoses.

  16. Demographics Influence Etiology in 2,052 Patients With Late-Onset Seizures
    Neurology ·Cohort Study · May 17, 2026

    Demographics Influence Etiology in 2,052 Patients With Late-Onset Seizures

    A multicenter study finds that while stroke remains common, neurodegeneration and unexplained causes dominate the geriatric epilepsy profile.

  17. Selective HDAC6 Inhibition Improves Motor Function in Preclinical ALS Models
    Brain ·Preclinical Study · May 17, 2026

    Selective HDAC6 Inhibition Improves Motor Function in Preclinical ALS Models

    A CNS-penetrant small molecule restores protein clearance and axonal transport, reducing neurofilament levels and TDP-43 pathology.

  18. Multimodal AI System Matches Clinicians in Simulated Telehealth Diagnostics
    Nature Medicine ·Randomized Controlled Trial · May 16, 2026

    Multimodal AI System Matches Clinicians in Simulated Telehealth Diagnostics

    A new AI system, multimodal AMIE, integrates diverse data types to achieve high diagnostic accuracy and conversational quality in simulated telehealth

  19. SHANK3 Haploinsufficiency in Macaques Reveals Diverse Behavioral, Cognitive Phenotypes
    Neuron ·Animal Study · May 16, 2026

    SHANK3 Haploinsufficiency in Macaques Reveals Diverse Behavioral, Cognitive Phenotypes

    A new macaque model of SHANK3 haploinsufficiency provides insights into Phelan-McDermid syndrome and potential biomarkers.

  20. SSPOP Mutations Linked to Pediatric Epilepsy and Developmental Disorders
    Brain ·Preclinical Study · May 16, 2026

    SSPOP Mutations Linked to Pediatric Epilepsy and Developmental Disorders

    Researchers identify pathogenic variants in a supposed pseudogene, expanding the diagnostic landscape for unexplained neurodevelopmental delay.

  21. Long-Duration Levodopa Response Distinguishes Parkinson's, Predicts Outcomes
    Annals of Neurology ·Cohort Study · May 16, 2026

    Long-Duration Levodopa Response Distinguishes Parkinson's, Predicts Outcomes

    A study details how sustained levodopa motor improvement helps differentiate parkinsonian syndromes and offers prognostic insights for PD.

  22. Gender-Affirming Mastectomy Linked to Sustained Satisfaction, Quality of Life
    Plastic & Reconstructive Surgery ·Cross-Sectional Study · May 16, 2026

    Gender-Affirming Mastectomy Linked to Sustained Satisfaction, Quality of Life

    A cross-sectional study finds high patient-reported chest satisfaction and psychological well-being years after gender-affirming mastectomy.

  23. Digital and Mixed Interventions Support Physical Activity After Exercise Therapy
    British Journal of Sports Medicine ·Systematic Review · May 16, 2026

    Digital and Mixed Interventions Support Physical Activity After Exercise Therapy

    An umbrella review suggests digital and mixed delivery methods help patients with chronic conditions maintain physical activity and quality of life.

  24. Postpartum Psychosis Heritability Estimated, Specific Risk Genes Identified
    Molecular Psychiatry ·Genome-Wide Association Study · May 16, 2026

    Postpartum Psychosis Heritability Estimated, Specific Risk Genes Identified

    New research quantifies genetic contributions to postpartum psychosis and identifies specific genes, including shared pathways with other psychiatric