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Psychology News

These research articles involve many aspects of psychology such as cognitive psychology, depression studies, mental health, stress, happiness and neuropsychology, Scroll below for more specific categories.

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Pregnancy Stress Disrupts Baby’s Microbiome, Increasing Depression Risk

Prenatal stress in mothers can leave a lasting imprint on their offspring, predisposing them to depression-like behaviors. Researchers found that maternal stress disrupts the gut microbiome and metabolite production, which are vertically transmitted to the young.

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FoMO and Dark Personalities Drive Online Political Engagement

A large cross-national study examined how psychopathy, narcissism, fear of missing out (FoMO), and cognitive ability influence online political participation. Across eight countries, people high in psychopathy and FoMO consistently engaged more in digital political activities, while narcissism predicted participation only in some contexts.

Genetic Link Between Cannabis Use Disorder and Mental Health

A large genetic study reveals that cannabis use disorder (CanUD) is strongly linked to increased risk for multiple psychiatric disorders, including depression, PTSD, ADHD, and schizophrenia. By analyzing global and local genetic correlations, colocalization, Mendelian randomization, and structural equation modeling, researchers showed CanUD has distinct genetic signatures compared to casual cannabis use.

More Than Serotonin: How Psychedelics Engage the Whole Brain

Classical psychedelics like LSD, psilocybin, and mescaline are known for activating the 5-HT2A serotonin receptor, but a new study reveals their effects go far beyond. Researchers profiled 41 psychedelics against over 300 human receptors and found potent activity at serotonin, dopamine, and adrenergic sites.

Why Antidepressants Work Better for Some

A meta-analysis of gene expression data from humans and rodents reveals key biological pathways influencing response to the antidepressant fluoxetine. The study highlights the role of immune-related pathways, including toll-like receptor signaling, and neural signal transduction mechanisms in distinguishing responders from non-responders.

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Illusory Beliefs Fuel Risky Health Choices

Beliefs in pseudoscientific health ideas can undermine trust in conventional medicine and lead to riskier health decisions, a new study finds. Researchers analyzed over 1,500 participants and showed that stronger illusory beliefs were linked to higher use of unvalidated therapies and lower adherence to evidence-based practices.

How the Brain Decodes Social Emotions and Anxiety

The anterior temporal lobe (ATL) plays a key role in interpreting social hierarchies and facial emotions, offering insight into anxiety and mood disorders. A research project used advanced imaging techniques to overcome past challenges in studying the ATL, revealing its strong activation during social and emotional decisions.

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Can Dogs Really Judge Character?

Many dog lovers believe dogs can sense who to trust, but research suggests the reality may be more complex. A study of 40 pet dogs tested whether they form reputations of humans by observing how those humans treated another dog.

Overactive Anterior Insula May Fuel Anxiety and Depression

New research shows that elevated glutamate-glutamine (Glx) levels in the anterior insular cortex (AIC) make people more sensitive to mistakes and more prone to anxiety and depression. Using functional magnetic resonance spectroscopy and reinforcement learning tasks, scientists found that high AIC Glx predicted both a general internalizing symptom score and heightened error sensitivity, which mediated this relationship.

Toxoplasma Parasite Influences Personality and Aggression

New research highlights how parasitic infections can alter brain chemistry and behavior in humans. Toxoplasma gondii, among others, appears to manipulate dopamine and immune responses, increasing risk-taking, impulsivity, and aggression.

When Tears Seem Honest: Context Shapes How We Judge Crying

New research reveals that our perception of others’ tears as sincere or manipulative depends heavily on context. Tears were judged more honest when shed in non-manipulative situations and by those less expected to cry, such as men or individuals perceived as less warm.

This shows a man making eye contact with a robot.

How Eye Contact Builds Connection

A new study reveals that the sequence of eye movements—not just eye contact itself—plays a key role in how we interpret social cues, even with robots. Researchers found that looking at an object, making eye contact, then looking back at the object was the most effective way to signal a request for help.