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Anxious Depression fMRI Meta-Analysis Finds Left Temporal Activation

Editorial brain-map card for anxious depression with highlighted limbic and prefrontal regions from an earlier draft framing.

A 2026 fMRI meta-analysis of 11 studies found a narrow anxious-depression signal: 829 anxious-depression patients differed from 681 non-anxious MDD patients in left middle temporal gyrus activation (SDM-Z = 2.046, p = 0.020), while healthy-control contrasts centered on the anterior commissure and right middle frontal gyrus. The calibrated interpretation is not “amygdala and insula hyperactivity …

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Gamma Brain Stimulation Helps Schizophrenia More Than Depression

Photoreal illustration of gamma-frequency brain stimulation showing TMS coil and oscillation waveforms in 30-50 Hz range over a brain.

A 2026 meta-analysis of 56 controlled trials found the clearest gamma-frequency neuromodulation signal in schizophrenia: overall symptoms improved vs. control (g = −0.46), global cognition improved (g = 0.55), and MDD showed a smaller depression effect than the schizophrenia symptom estimate (g = −0.34). Bipolar disorder and autism stayed directional but nonsignificant, and the paper’s …

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Catatonia Linked to Lower Left Paracingulate Sulcus Rate (28% vs 53%)

Photoreal illustration of a brain with the anterior cingulate cortex highlighted, representing transdiagnostic structural markers of catatonia.

A 2026 hospital MRI study found that the left paracingulate sulcus was present in 31 of 109 catatonia patients (28%) vs. 171 of 323 psychiatric controls without catatonia (53%), a left-hemisphere group effect that survived adjustment for age, sex, scanner, brain volume, benzodiazepines, and antipsychotics.1 Research Highlights Left PCS signal: left paracingulate sulcus (PCS) presence …

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Teen Anxiety and Anhedonia Split Reward-Uncertainty fMRI

Photoreal illustration of adolescent brain regions with overlapping reward and default-mode network glow, conveying uncertainty processing.

A 2026 fMRI study of 84 medication-free adolescents found that reward uncertainty had its own phase-specific brain pattern: anxiety, depression, and anhedonia separated across different task phases and brain systems.1 The clearest clinical split was narrow but useful: anxiety tracked blunted striatum/thalamus activation during uncertain non-reward expectancy, while depression and anhedonia tracked higher visual/default-network activation …

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Chronic Pain Plus Depression Alters Brain Structure

Photoreal illustration of brain regions affected by overlapping pain and depression networks, conveying comorbid neural signature.

A 2026 UK Biobank MRI preprint involving 71,214 adults found that chronic pain plus current depression had a structural brain profile that was more than chronic pain plus depression pasted together. The 1,377-person comorbid group showed widespread lower cortical volume, lower bilateral thalamic and hippocampal volume, lower left accumbens volume, and broad white-matter microstructure differences …

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Antidepressant Use in Pakistan (2026): SSRI Prescribing Patterns and Patient-Reported Side Effects

Photoreal illustration of a pharmacist counseling patient on antidepressant medication, conveying global pharmacovigilance.

Most antidepressant pharmacovigilance data come from high-income countries, leaving prescribing patterns and adverse-effect profiles in low- and middle-income countries underdocumented. A 2026 cross-sectional study by Riaz and colleagues describes antidepressant use in Pakistan, with patient-reported adverse effects mapped against prescription patterns.1 Research Highlights Antidepressant use in low- and middle-income countries (LMICs) has grown substantially but …

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