BrainASAP

Psychotropic Medications Linked to Subcortical Brain Volume in Bipolar Disorder

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Psychotropic Medications Linked to Subcortical Brain Volume in Bipolar Disorder

TL;DR: A 2026 Molecular Psychiatry ENIGMA mega-analysis found that medication status in bipolar disorder was linked to subtle differences in subcortical brain volume, with antiepileptic and antipsychotic exposure most consistently tied to smaller hippocampal and thalamic volumes. Key Findings 6,729-person ENIGMA sample: Researchers pooled MRI data from 2,664 people with bipolar disorder and 4,065 controls …

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Second-Trimester Sleep Disturbance Linked to Pregnancy Mood and Birth Outcomes

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Second-Trimester Sleep Disturbance Linked to Pregnancy Mood and Birth Outcomes

TL;DR: A 2026 cross-sectional study in Nature and Science of Sleep linked second-trimester sleep disturbance, measured with the Pittsburgh Sleep Quality Index (PSQI), to depressive symptoms, vomiting, diet quality, and several birth-outcome patterns in 2,210 pregnant women in Wuhan, China. Key Findings Sleep disturbance affected 18.14%: 401 of 2,210 pregnant women had PSQI scores above …

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Flexible Polyimide Brain Implants Lowered Tissue Reactivity

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Flexible Polyimide Brain Implants Lowered Tissue Reactivity

TL;DR: A 2026 study in Advanced Science found that flexible polyimide brain-implant probes produced lower long-term tissue reactivity than stiff silicon electrodes, while thinner probe designs and skull-detached mounting mattered less than the implant material itself. Key Findings Material mattered most: Flexible polyimide probes triggered less brain-tissue reactivity than stiff silicon electrodes. Not reaction-free: Polyimide …

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PGAD Symptoms Improved After Risperidone Valproate and CBT Case Plan

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PGAD Symptoms Improved After Risperidone Valproate and CBT Case Plan

TL;DR: A 2026 study in Clinical Case Reports described persistent genital arousal disorder in a woman in her 30s, with symptom improvement after combined risperidone, sodium valproate, fluoxetine, short-term clonazepam, relaxation work, and cognitive behavioral strategies. Key Findings Five-month symptom course: The patient reported spontaneous genital tingling, throbbing, and warmth without sexual desire or fantasy. …

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Perceived Grievance Linked Distress to Left-Wing Authoritarianism

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Perceived Grievance Linked Distress to Left-Wing Authoritarianism

TL;DR: A 2024 study in Journal of Political Ideologies linked perceived grievance, a belief that society is structured around group-based oppression, with left-wing authoritarianism through psychological distress and individualizing moral concerns. Key Findings Grievance link: Perceived grievance was the strongest direct predictor of left-wing authoritarianism in the tested model. Distress pathway: Depression, anxiety, and stress …

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Parkinson’s Speech Pauses Increased With Sentence Length and Complexity

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Parkinson's Speech Pauses Increased With Sentence Length and Complexity

TL;DR: A 2026 study in PLOS One found that people with Parkinson’s disease made more silent pauses while reading aloud, especially when sentences were longer or syntactically more complex. Key Findings Reading task compared 71 adults: Researchers compared 32 people with Parkinson’s disease and 39 older control participants. Parkinson’s readers paused more often: The Parkinson’s …

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Brain-Heart Coupling Tracked Parkinson’s Disease and Freezing of Gait

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Brain-Heart Coupling Tracked Parkinson's Disease and Freezing of Gait

TL;DR: A 2026 preprint in medRxiv used electroencephalography (EEG), a scalp electrical-activity recording method, and electrocardiogram (ECG) recordings to test whether brain-heart interplay, meaning coupling between brain-network organization and cardiac autonomic activity, tracks aging, Parkinson’s disease, cognitive screening scores, and freezing of gait. Key Findings Three datasets: Researchers analyzed resting EEG-ECG data from healthy young …

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Oxidative Stress Reduced Brain Deubiquitylase Activity With Age

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Oxidative Stress Reduced Brain Deubiquitylase Activity With Age

TL;DR: A 2026 Nature Communications study in aging mouse and killifish brains found that deubiquitylases (DUBs), enzymes that help edit protein-cleanup tags, lost about 40% of their catalytic activity with age even when many of the same enzymes were still present. Key Findings Brain DUB activity fell with age: In old mouse brains, researchers saw …

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Mouse Smell Receptors Followed a Spatial Code Linked to Brain Maps

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Mouse Smell Receptors Followed a Spatial Code Linked to Brain Maps

TL;DR: A 2026 mouse study in Cell found that olfactory receptor neurons, the smell-sensing cells in the nose, were arranged in spatial bands that lined up with matching sensory maps in the brain’s olfactory bulb. Key Findings Organized receptor bands: Researchers found that odor receptor neurons were not randomly scattered across the mouse nose; receptor …

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Depression Linked to Lower Quality of Life in Older Adults in Nepal

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Depression Linked to Lower Quality of Life in Older Adults in Nepal

TL;DR: A 2026 cross-sectional study in BMC Geriatrics found that 43.9% of 945 older adults in Nepal’s Sudurpaschim Province screened positive for geriatric depression, and depression was linked to lower quality-of-life scores across every WHOQoL-8 domain. Key Findings Large household sample: Researchers interviewed 945 adults aged 60 years and older in Hill and Tarai districts …

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