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Psychology

Auditory Neuroscience Featured Neuroscience Psychology

·February 11, 2025·4 min read

Stress Alters How the Brain Processes Sound

Chronic stress weakens the brain’s ability to process sounds, requiring louder stimuli to trigger normal responses, according to new research in mice. Scientists found that stress affects inhibitory brain cells, which suppress responses to lower-decibel sounds while maintaining sensitivity to louder noises.

Featured Neuroscience Psychology

·February 10, 2025·2 min read

Cerebellar Serotonin Acts as a Brake to Reduce Anxiety

New research reveals that serotonin in the cerebellum plays a crucial role in anxiety regulation. Scientists found that mice with lower cerebellar serotonin levels displayed increased anxiety-like behaviors, while those with higher serotonin levels were less anxious.

This shows a teen girl and a plate of keto foods.

Featured Neuroscience Psychology

·February 7, 2025·3 min read

Ketogenic Diet May Stabilize Mood in Young People with Bipolar

Researchers are launching a multi-site pilot study to assess whether a ketogenic diet, alongside standard medications, can stabilize mood symptoms in young people with bipolar disorder. The 16-week trial will involve 40 participants aged 12-21, who will follow a ketogenic diet while their mood symptoms, metabolic markers, and adherence to the diet are monitored.

Featured Neuroscience Psychology

·February 6, 2025·5 min read

How the Brain Overcomes Instinctive Fear and Adapts to New Threats

Researchers have identified brain mechanisms that help animals suppress instinctive fear responses when threats prove harmless over time. Using a visual threat model in mice, they found that specific areas of the visual cortex are necessary for learning to override fear, but not for storing the memory. Instead, the ventrolateral geniculate nucleus (vLGN) retains these learning-induced memories, regulating fear suppression.

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Featured Neuroscience Psychology

·January 30, 2025·6 min read

Blood Test May Predict Postpartum Depression Through Hormone Levels

Women who develop postpartum depression (PPD) may have distinct neuroactive steroid levels during the third trimester of pregnancy. A study found that those with PPD had lower levels of pregnanolone, which reduces stress, and higher levels of isoallopregnanolone, which increases stress.

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Featured Neuroscience Psychology

·January 29, 2025·5 min read

How Large Social Circles Foster Trust

A new study challenges the belief that larger groups reduce cooperation, showing instead that flexible social connections enhance teamwork. Researchers found that in a prisoner’s dilemma game, participants in bigger groups cooperated more frequently, despite memory limitations.

Featured Neuroscience Psychology

·January 28, 2025·3 min read

Empathy Peaks in Young Adults

A new study reveals that young adults show the strongest empathic responses to others in physical or social pain, compared to adolescents and older adults. Researchers measured brain activity while participants viewed painful situations, finding that empathy responses develop with age but peak in young adulthood.

Featured Neuroscience Psychology

·January 28, 2025·5 min read

Study Links Schizophrenia to Visual Contrast Sensitivity Deficits

People with schizophrenia experience impaired contrast perception, affecting their ability to differentiate light intensity and recognize shapes and textures. This deficit may stem from disruptions in glutamate neurotransmission, a key neural mechanism in the disease.

Featured Neuroscience 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.

Featured Neuroscience Psychology

·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.