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·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

·January 28, 2025·3 min read

Oral Microbiome May Influence Cognitive Decline and Brain Health

The microbial ecosystems in our mouths may impact cognitive function as we age, with pathogenic bacteria linked to cognitive decline. Researchers found that beneficial bacteria, such as Neisseria, are associated with improved memory and attention, while harmful bacteria like Porphyromonas correlate with mild cognitive impairment.

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 Genetics Neuroscience

·January 28, 2025·5 min read

Mouse With Two Male Parents Survives to Adulthood

Researchers have successfully engineered bi-paternal mice, born from two male parents, that survived to adulthood using embryonic stem cell techniques. By modifying 20 key imprinting genes, they overcame the developmental barriers that previously limited unisexual reproduction in mammals.

Featured Neuroscience

·January 28, 2025·6 min read

Cannabis Use Reduces Brain Activity in Key Memory Regions

A study of over 1,000 young adults reveals that both recent and heavy lifetime cannabis use reduce brain activity in regions critical for working memory, including the prefrontal cortex and anterior insula. This reduced activity correlates with poorer performance on memory tasks like following instructions or solving problems.

Featured Neuroscience

·January 27, 2025·6 min read

Synchronizing Nerve Stimulation With Heartbeat Boosts Effectiveness

Synchronizing vagus nerve stimulation with natural body rhythms, such as the heartbeat and breathing, significantly improves its effectiveness. This "electric pill" technique uses ear-mounted electrodes to stimulate the vagus nerve, targeting chronic conditions like pain and inflammation.

Featured Neuroscience Visual Neuroscience

·January 27, 2025·5 min read

How the Brain Processes Space and Time

New research highlights a functional hierarchy in the brain's processing of space and time. In posterior areas, like the occipital cortex, space and time are tightly linked and processed by the same neurons. In anterior regions, such as the frontal cortex, space and time are processed independently, with distinct neural populations forming "time maps" for specific durations.

Featured Neurology Neuroscience

·January 27, 2025·5 min read

REM Sleep Delays May Indicate Early Alzheimer’s

Delayed rapid eye movement (REM) sleep may be an early indicator of Alzheimer’s disease. Researchers found that participants with delayed REM sleep had higher levels of toxic proteins associated with Alzheimer’s and reduced levels of brain-derived neurotrophic factor (BDNF), which supports memory.

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

·January 23, 2025·7 min read

AI Mimics Toddler-Like Learning to Unlock Human Cognition

A new AI model, based on the PV-RNN framework, learns to generalize language and actions in a manner similar to toddlers by integrating vision, proprioception, and language instructions. Unlike large language models (LLMs) that rely on vast datasets, this system uses embodied interactions to achieve compositionality while requiring less data and computational power.