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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.

Teen Brain’s Blunted Reward Response Predicts Depression Onset

A new study reveals that a reduced neural response to rewards in teens predicts the first onset of depression, but not anxiety or suicidality. Researchers used EEG scans to measure "reward positivity" in at-risk adolescents and found that those with blunted responses were more likely to develop depression.

Ketamine Reduces “Giving Up” by Targeting Brain Support Cells

Researchers have found that ketamine’s antidepressant effects target astroglia, a type of brain support cell, rather than neurons, challenging conventional views. Using zebrafish, scientists observed that ketamine suppressed the “giving up” behavior caused by futility signals, an effect linked to astroglial activation.

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AI Tweaks Personality Tests to Appear More Likable

Large language models (LLMs) can identify when they are being given personality tests and adjust their responses to appear more socially desirable. Researchers found that LLMs, like GPT-4, showed exaggerated traits such as reduced neuroticism and increased extraversion when asked multiple test questions.

Being Watched Changes How Your Brain Processes Faces

A new study shows that knowing you're under surveillance triggers a faster, automatic brain response to detect faces and gaze direction. Researchers found that participants monitored via CCTV became hyper-aware of facial stimuli nearly a second faster than those not being watched, even without realizing it.

Twin Dynamics: How Developmental Differences Shape Dominance Roles

A new study reveals that developmental differences strongly influence dominance roles in twin relationships, with typically developing twins perceived as dominant over their nontypically developing siblings. This dominance imbalance persists throughout childhood, even if developmental challenges improve.

Dopamine Plays Key Role in the Heart’s Stress Response

Researchers have discovered how stress-induced cardiovascular changes are controlled by the brain. Experiments in rats show that activating the lateral habenula, a stress-sensitive brain region, triggers changes in heart rate and blood pressure.

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Human Remains Reveal Violence and Cannibalism in Bronze Age Britain

Archaeologists studying the Charterhouse Warren site in England found evidence of a massacre, where at least 37 individuals were butchered, likely partly consumed, and dehumanized by their enemies. Analysis of over 3,000 bone fragments revealed blunt force trauma and cut marks, indicating intentional violence rather than ritualistic funerary practices.

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Positive Attitude Boosts Passion and Determination

New research links a positive attitude, or "growth mindset," to higher levels of passion and determination. A study of over 1,500 participants aged 13 to 77 found that those with the most positive outlook had significantly greater willpower and enthusiasm than those with a negative mindset.

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Why We Buy What We Buy: The Neuroscience of Shopping

New research in neuroeconomics explores the brain processes behind shopping decisions, revealing how factors like brand recognition, pricing, and online versus in-person experiences influence purchases. The ventral striatum, a brain region linked to reward, evaluates products even without active decision-making.

Moms Carry 71% of the Mental Load

New research shows that mothers take on 71% of household mental load tasks, including planning, scheduling, and organizing, while fathers manage just 45%. This imbalance often leads to stress, burnout, and strain on women’s careers and relationships.

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Genetic Mechanism Links Emotional Experiences to Behavior Changes

Researchers have identified a genetic mechanism that regulates behavioral adaptations to emotional experiences by forming R-loops, unique RNA:DNA structures that activate target genes. The study focused on NPAS4, a gene implicated in stress and drug addiction, showing how blocking R-loops prevents maladaptive behaviors like cocaine seeking and stress-induced anhedonia in mice.

Gut Serotonin Plays Role in Depression and Mood

Serotonin in the gut epithelium plays a critical role in modulating mood and may provide a safer target for treating depression and anxiety. In animal studies, increasing gut serotonin improved mood symptoms without causing digestive issues, unlike systemic antidepressant treatments.