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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.

Robots Help Unlock the Mystery of Human Sense of Self

A new study explores how robots can model and test aspects of the human sense of self, offering new insights into this complex phenomenon. Robots can simulate processes like body ownership and agency, or be used in experiments to study how humans perceive robots as social entities.

Body Image Impacts Motor Skill Learning

Self-consciousness about one’s body affects the ability to learn and perform movement tasks, according to new research. Participants recalling body-related embarrassment performed worse on motor tasks compared to those recalling pride, with the negative impact being stronger in men than women.

Study Debunks Heart Rate Variability as Predictor of Aggression

New research has found no evidence linking heart rate variability (HRV) to reactive aggression, overturning previous theories. HRV measures the variation between heartbeats and has been associated with stress resilience, but this study shows it is not a reliable biomarker for aggression.

How Depression Alters Stress, Health, and Lifespan

Depression disrupts the body's stress systems, causing physical health risks like heart disease, diabetes, and stroke, and reducing life expectancy by 7-10 years. The condition triggers brain structure changes, such as a 40% reduction in subgenual prefrontal cortex volume, and disrupts hormone systems involving CRH, norepinephrine, and cortisol.

How Stressful Events Alter Memories

Researchers have discovered how stress disrupts memory specificity, leading to generalized aversive memories—a hallmark of PTSD. Stress increases endocannabinoid release, enlarging memory engrams in the brain, which triggers fearful responses to unrelated, safe situations.

How Decision-Making Improves with Age

Adolescents are known for making less optimal, noisy decisions, but a recent study reveals that these tendencies decrease with age and are linked to improvements in complex decision-making skills. Researchers found that decision noise, or variability in choices, mediates age-related gains in goal-directed behaviors and adaptability.

Brain Circuits Behind Psychedelics’ Anti-Anxiety Power Decoded

New research has identified distinct neural circuits for the anti-anxiety and hallucinogenic effects of psychedelics. Using the psychedelic DOI in mice, researchers demonstrated that anxiety reduction persists long after hallucinatory effects subside.

Smart Social Media Use Reduces Teen Stress

How young people use social media impacts their mental health more than how much time they spend on it. Researchers found that reducing harmful comparisons and fostering meaningful connections online can improve mental well-being, reducing loneliness, anxiety, and depression.

This shows the molecular structure for ketamine.

“Lifesaving” Low-Dose Ketamine Unlocks Rapid Relief for Depression

Researchers have identified how low-dose ketamine alleviates depression by selectively targeting specific NMDA receptors in the brain. Unlike high-dose anesthetic effects, low-dose ketamine binds to lateral grooves on NMDA receptors, enhancing excitatory transmission and long-term synaptic changes.

This shows two heads and "paranormal" symbols.

Traditional Paranormal Beliefs Linked to Stress

Traditional paranormal beliefs, such as witchcraft and religious superstition, are linked to higher stress and reduced coping ability, while new age beliefs, like spiritualism and precognition, show no such link. Researchers used an improved scale to analyze responses from over 3,000 participants, revealing that traditional beliefs may reflect anxieties about external control. The findings highlight the psychological differences between belief types but cannot confirm cause-and-effect relationships.

This shows the outline of people and brains.

Metabolic Pathways Link Cannabis to Psychosis in Teens

A study investigated how cannabis use influences metabolomic patterns linked to psychotic-like experiences in adolescents. Blood samples revealed that non-cannabis users showed inflammatory metabolic changes associated with hallucinations, while cannabis users exhibited shifts in energy-related metabolites tied to brain ketogenesis. These findings suggest that cannabis use may trigger distinct molecular pathways in psychotic-like experiences.

Stress in Social Groups: How One’s Stress Affects the Whole

New research on zebra finches reveals that stress spreads within social groups, even affecting individuals not directly exposed to stressors. Birds in groups with more stressed members showed reduced movement and changes in social behavior, such as fewer social bonds.