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Psychology

·January 27, 2025·4 min read

Opioid Dysregulation in the Brain Tied to Eating Disorders

Elevated opioid neurotransmission in the brain may underlie appetite loss and emotional symptoms in anorexia nervosa. Compared to healthy controls, patients with anorexia had increased opioidergic tone, which regulates appetite, pleasure, and mood.

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·January 27, 2025·3 min read

Dopamine Clock May Drive Bipolar Mood Swings

New research suggests that mood swings in bipolar disorder are regulated by two clocks: the body’s 24-hour circadian rhythm and a dopamine-based clock that influences alertness. When these clocks align at specific intervals, they may trigger shifts between mania and depression.

Featured Neuroscience Psychology

·January 22, 2025·7 min read

Targeting Reward Pathways to Treat Depression

New research highlights how the brain's reward-learning system can guide personalized treatments for depression. By studying two brain signals, expected value and prediction error, researchers identified markers that predict recovery potential and tailored responses to rewards and setbacks.

Featured Neuroscience Psychology

·January 20, 2025·6 min read

Early Exposure to Violent Media Linked to Teen Antisocial Behavior

A study of nearly 2,000 children found that boys exposed to violent television content at ages 3.5 to 4.5 were more likely to exhibit antisocial behaviors as teens. These behaviors included physical aggression, theft, threats, and involvement in gang fights, with no similar effects observed in girls.

Featured Neuroscience Open Neuroscience Articles Psychology

·January 17, 2025·6 min read

Do Accents Influence Guilt Perceptions?

Accents influence perceptions of guilt, with those judged as "lower status" being considered more likely to commit crimes. Researchers analyzed responses from 180 participants who rated voices from 10 UK accents on social traits and likelihood of certain behaviors, including crimes.

Featured Neuroscience Psychology

·January 17, 2025·5 min read

Mapping the Link Between Personality and Cognitive Decline

A new study has identified three psychological profiles that influence brain health, cognitive decline, and dementia risk in aging adults. Profiles with high protective traits, like purpose and openness, show better cognition and brain integrity, while those with low protective traits or high negative traits face accelerated brain atrophy and mental health issues.

Featured Neuroscience Psychology

·January 16, 2025·5 min read

Decoding Favoritism: How Parents Shape Sibling Bonds

New research sheds light on how parents subtly favor children based on birth order, personality, and gender, shaping family dynamics. Younger siblings often receive more favorable treatment, while older siblings are granted greater autonomy.

This shows a brain, food, and silverware.

Featured Genetics Neuroscience Psychology

·January 10, 2025·5 min read

Delayed Brain Maturation Links Genetics and Eating Disorders

Over half of 23-year-olds display restrictive, emotional, or uncontrolled eating behaviors, with delayed brain maturation playing a significant role. The research linked structural brain differences, mental health challenges, and genetic predispositions to the development of disordered eating behaviors from adolescence to adulthood. MRI data showed delayed cortical thinning in unhealthy eaters, especially in regions like the cerebellum, which regulates appetite.

This shows a child sitting alone on a bench while others play around him.

Featured Neuroscience Psychology

·January 9, 2025·7 min read

Physical Neglect Causes Lifelong Social Challenges in Children

A new study highlights how childhood physical neglect disrupts social development more than physical, emotional, or sexual abuse. Neglected children were less social, less popular, and less connected to cohesive friend groups, facing stigmatization and withdrawal.

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·January 9, 2025·5 min read

Neural Mechanisms Behind Stress-Driven Social Changes Found

Male and female mice usually prefer female companions but switch to preferring males under survival stress, a new study reveals. This behavioral shift is driven by distinct brain circuits involving dopaminergic neurons in the ventral tegmental area.

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·January 9, 2025·4 min read

High-Fat Diets in Adolescence Linked to Adult Impulsivity

Adolescent rats fed a high-fat diet displayed increased impulsivity and altered decision-making as adults. These "cheesecake rats" were quicker to act on visual cues (indicative of impulsivity) but showed more conservative choices in gambling tasks, opting for smaller, safer rewards.

Featured Genetics Neuroscience

·January 9, 2025·4 min read

Early Stress Alters Sperm DNA, Impacting Offspring’s Brain Development

Childhood stress may leave lasting marks on sperm, altering epigenetic profiles and potentially influencing brain development in offspring. Researchers found that men with high levels of childhood maltreatment had changes in DNA methylation and non-coding RNA levels in their sperm.