Quetiapine Linked to Better Working Memory in Schizophrenia

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Quetiapine Linked to Better Working Memory in Schizophrenia

TL;DR: A 2026 study in European Archives of Psychiatry and Clinical Neuroscience linked sustained quetiapine treatment with better high-working-memory cognitive performance in schizophrenia spectrum disorder, but the genetic tests did not support the proposed remyelination-moderation mechanism. Key Findings 166 matched pairs: The extended PsyCourse analysis included 166 quetiapine-treated schizophrenia-spectrum patients and 166 age- and sex-matched …

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Lecanemab Linked to Lower Neuropsychiatric Symptoms in Alzheimer’s

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Lecanemab Linked to Lower Neuropsychiatric Symptoms in Alzheimer's

TL;DR: A 2026 real-world cohort study in The Journal of Prevention of Alzheimer’s Disease found that lecanemab-treated Alzheimer’s patients had lower Neuropsychiatric Inventory scores over follow-up, and 6-month symptom reductions were associated with regional amyloid-beta positron emission tomography (PET) clearance. Key Findings 144 treated patients: The cohort included people with Alzheimer’s-related mild cognitive impairment or …

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DLPFC rTMS Improved Dual-Task Walking After Subacute Stroke

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DLPFC rTMS Improved Dual-Task Walking After Subacute Stroke

TL;DR: A 2026 randomized trial in Physiotherapy Research International found that adding active 5 Hz repetitive transcranial magnetic stimulation (rTMS) over the dorsolateral prefrontal cortex to dual-task stroke rehabilitation produced larger gains in Timed Up-and-Go performance, balance confidence, and cognitive screening than sham stimulation plus the same training. Key Findings Small randomized trial: The study …

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Cariprazine Linked to Obsessive-Compulsive Symptom Flare in Bipolar II Case Report

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Cariprazine Linked to Obsessive-Compulsive Symptom Flare in Bipolar II Case Report

TL;DR: A 2026 case study in Biomedical Reports described a 28-year-old woman with bipolar II disorder whose stable subclinical counting compulsion worsened and expanded into new obsessive-compulsive symptoms within 3 days of starting cariprazine, then returned near baseline within 7 days after the drug was stopped. Key Findings Single case report: The source described one …

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ALS Blood Tau Biomarkers Tracked Severity While NfL Predicted Progression

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ALS Blood Tau Biomarkers Tracked Severity While NfL Predicted Progression

TL;DR: A 2026 preprint on medRxiv found that blood tau markers and neurofilament light tracked different parts of amyotrophic lateral sclerosis (ALS), with tau markers linked more to current lower-motor-neuron and muscle-injury features while neurofilament light was the clearest marker of faster decline and shorter survival. Key Findings 119 ALS patients: Researchers measured plasma and …

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Ketamine EEG Alpha Redundancy Tracked Depression Response in Late-Life TRD

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Ketamine EEG Alpha Redundancy Tracked Depression Response in Late-Life TRD

TL;DR: A 2026 study in Translational Psychiatry found that ketamine changed EEG-derived high-order brain interactions in late-life treatment-resistant depression, and a 24-hour increase in alpha-band redundancy tracked greater depression improvement by Day 7. Key Findings 30 analyzed participants: The secondary analysis compared 18 ketamine-treated and 12 midazolam-treated late-life veterans with treatment-resistant depression at baseline. Single …

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Right Insula-Putamen Brain Network Linked to Somatic Symptoms

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Right Insula-Putamen Brain Network Linked to Somatic Symptoms

TL;DR: A 2026 study published in BMC Medicine used lesion network mapping to identify a somatic-symptom brain network centered on the right insula and putamen, then linked atrophy inside that network to somatic symptom severity across 399 psychiatric patients. Key Findings 21 lesions mapped: Lesions linked to somatic symptoms appeared in different brain locations but …

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DLPFC rTMS Reduced Cigarette Craving: Heavier Baseline Symptoms Marked Responders

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DLPFC rTMS Reduced Cigarette Craving: Heavier Baseline Symptoms Marked Responders

TL;DR: A 2026 medRxiv preprint found that one session of repetitive transcranial magnetic stimulation (rTMS) over the left dorsolateral prefrontal cortex (DLPFC) reduced cigarette craving in adults with tobacco use disorder, and the people who responded had heavier baseline smoking, craving, and withdrawal. Key Findings DLPFC craving test: The randomized crossover study included 60 adults …

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ADHD Symptoms Linked to Cannabis Use Through CNR1-Rich Inhibitory-Control Regions

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ADHD Symptoms Linked to Cannabis Use Through CNR1-Rich Inhibitory-Control Regions

TL;DR: A 2026 medRxiv preprint linked greater attention-deficit/hyperactivity disorder (ADHD) symptom scores in college students to reduced stop-signal functional MRI (fMRI) activation in cannabinoid receptor 1 (CB1R)-rich brain regions, and that reduced activation predicted heavier cannabis-use trajectories over 4 years. Key Findings ADHD-cannabis trajectory: Researchers analyzed cannabis-use trajectories in 466 first-year college students aged 18-19, …

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Review Identified Different Depression Treatment Targets in Alzheimer’s and Parkinson’s

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Review Identified Different Depression Treatment Targets in Alzheimer's and Parkinson's

TL;DR: A 2026 narrative review in Molecular Psychiatry argues that depression in Alzheimer’s disease and Parkinson’s disease follows disease-specific brain mechanisms, while standard antidepressant evidence remains weak in these neurodegenerative populations. Key Findings 42% in Alzheimer’s disease: The review cites depressive syndromes affecting about 42% of patients with Alzheimer’s disease and 35% of patients with …

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