MentalHealthDaily

Social Anxiety: Prefrontal Connectivity Differs but Amygdala-PFC Doesn’t

by GLOOM

Stylized fMRI connectivity map showing prefrontal and amygdala circuits during emotion regulation in social anxiety disorder.

The textbook story of social anxiety disorder is broken amygdala-prefrontal regulation — an overactive threat system the prefrontal cortex can’t calm down. A 2026 effective-connectivity study of 102 adults found something different: amygdala-prefrontal connectivity didn’t differ between social anxiety patients and controls, but connectivity between prefrontal regions did, particularly involving the pre-supplementary motor area.1 Research …

fMRI Low-Frequency Oscillation Tracked Nicotine Dependence and Arousal

by GLOOM

MHD featured image for systemic low-frequency oscillation fMRI and nicotine arousal.

A 2026 multi-cohort fMRI study found that a signal often treated as physiological noise tracked nicotine dependence, cue-induced craving, abstinence, and stimulant effects.1 During cigarette cue exposure, systemic low-frequency oscillation amplitude correlated with nicotine dependence at r = −0.32, p = .009. Research Highlights Dependence tracked cue-period physiology: In 64 smokers, higher average sLFO amplitude …

Postpartum Depression Brain Activity: 12-Study fMRI Meta-Analysis

by GLOOM

Stylized resting-state brain scan with highlighted amygdala, precuneus, and neurotransmitter systems, representing fMRI meta-analysis findings in postpartum depression.

Resting-state fMRI studies of postpartum depression have produced inconsistent results for years. A 2026 voxel-based meta-analysis pooled 12 studies of 475 patients and found 4 reliable regional differences (amygdala, precuneus, occipital, precentral cortex) at uncorrected thresholds, none of which held up under strict family-wise error correction.1 Research Highlights 12-study fMRI pool: Chen et al. analyzed …

Trauma Disrupts Parent-Child Fear Extinction in Youth With PTSD Symptoms

by GLOOM

MHD featured image for parent-child trauma, fear extinction, and PTSD symptoms.

A 97-dyad adolescent fMRI study found that trauma-exposed youth with high posttraumatic stress symptoms did not use parent-observed safety learning in the usual way: their arousal rose to a safety cue during vicarious extinction, F(1,159) = 4.81, p = 0.029, and parent-child physiological synchrony no longer predicted lower skin conductance during early safety learning.1 The …

PTSD Counterconditioning Strengthened fMRI Safety Memory

by GLOOM

A 2026 functional magnetic resonance imaging study involving 54 adults found that pairing a formerly threatening cue with positive images, a laboratory method called counterconditioning, strengthened later neural safety-memory signals in people with posttraumatic stress disorder. The experiment measured fear-learning biology, not PTSD symptom improvement after therapy.1 Research Highlights 54 adults were analyzed: Cooper et …

Social Mindfulness Favored Ingroup Members in Refugee-Policy fMRI Study

by GLOOM

MHD featured image for social mindfulness, group identity, and refugee-policy fMRI.

A 2026 fMRI study of 45 adults with strong pro- or anti-refugee stances found that people made more socially mindful choices for ingroup partners than for outgroup or unclassified partners, with mean socially mindful choices of 19.36 for ingroup, 17.18 for outgroup, and 16.31 for unclassified partners.1 Outgroup prosocial choices still occurred, but they recruited …

Non-Invasive Prehabilitation Shifted Brain Tumor Language Networks

by GLOOM

MHD featured image for non-invasive prehabilitation, brain tumors, and language-network plasticity.

A 2026 brain tumor prehabilitation study involving 26 surgical patients found that language-targeted non-invasive stimulation plus intensive language training shifted fMRI language activation away from the stimulation target, while measured language and cognition stayed stable. Research Highlights Language-targeted prehabilitation moved the fMRI signal: the group-by-time interaction for stimulation-target overlap was significant, F(1,23) = 4.61, p …