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neurobiology

·May 16, 2025·3 min read

Silent Switches in DNA Gave Rise to Human Intelligence

Despite sharing over 98% of our DNA with chimpanzees, humans possess strikingly advanced cognitive and emotional abilities. A new study reveals that rapid shifts in gene regulation—rather than changes in protein-coding genes—may explain this leap.

Featured Neuroscience

·May 16, 2025·6 min read

Astrocytes Control Behavior Through Slow Brain Signaling

Astrocytes, once thought to be mere support cells, are now shown to play a leading role in regulating behavior by modulating neuronal activity through slow biochemical circuits. In zebrafish, researchers discovered that astrocytes respond to norepinephrine by releasing ATP, which is then broken down into adenosine—an important neuromodulator that signals neurons to stop swimming when progress is futile.

Featured Genetics Neurology Neuroscience

·May 16, 2025·4 min read

Clues in Spinal Fluid Could Unlock Early FTD Diagnosis

Frontotemporal dementia (FTD), a common form of early-onset dementia, is often misdiagnosed due to its overlapping symptoms with psychiatric and neurological disorders. In a new NIH-funded study, researchers identified key protein changes in spinal fluid that may serve as the first specific biomarkers for FTD in living patients.

Featured Neuroscience Psychology

·May 16, 2025·6 min read

Psychedelics May Shift Brain Power to the Right Hemisphere

A new theory suggests that psychedelics promote empathy, insight, and psychological flexibility by making the brain’s right hemisphere temporarily dominant over the left. Known as HEALS—Hemispheric Annealing and Lateralization Under Psychedelics—this model proposes that psychedelics disrupt the typical hierarchy between hemispheres, releasing the more holistic, emotionally intelligent right side from left-brain control.

Featured Genetics Neuroscience

·May 16, 2025·6 min read

Genetic Twist Behind Orange Cat Fur Finally Uncovered

After decades of mystery, researchers have finally identified the gene behind orange fur in domestic cats: a deletion mutation in the X-linked gene ARHGAP36. This mutation increases gene activity in pigment-producing skin cells, shifting fur color toward orange by altering pigment production pathways.

This shows kidneys on a scale of justice.

Featured Neuroscience Psychology

·May 16, 2025·5 min read

Public Favors Some Organ Recipients Over Others

Americans tend to judge organ transplant eligibility based on the cause of a person’s illness rather than their race or ethnicity. Survey participants consistently favored recipients whose conditions were seen as less self-inflicted—such as black lung disease from coal mining or genetic kidney failure—over those with alcohol use disorder or unvaccinated COVID-19 complications.

Featured Neuroscience

·May 16, 2025·6 min read

Astrocytes Take Center Stage in Brain Function and Behavior

Long thought to be mere support cells, astrocytes are now shown to play a powerful, dynamic role in regulating brain function and behavior. New research in fruit flies and rodents reveals that astrocytes don’t just support neurons—they selectively respond to neurotransmitters and influence which neural signals are prioritized.

Autism Featured Neuroscience Psychology

·May 16, 2025·4 min read

Autistic and Non-Autistic People Communicate Equally Effectively

A new study has debunked the common myth that autistic people are less effective communicators than non-autistic individuals. Researchers found no difference in how well information was shared between autistic-only, non-autistic-only, or mixed groups.

Featured Neurology Neuroscience

·May 16, 2025·5 min read

Surprising Diabetes Fix Found in the Brain

New research reveals that hyperactivity in a specific set of brain cells, AgRP neurons in the hypothalamus, plays a key role in type 2 diabetes—independent of obesity. When these neurons were silenced in diabetic mice, blood sugar normalized for months, even without changes in weight or food intake. This challenges long-standing beliefs that obesity and insulin resistance are the sole drivers of diabetes.

Featured Neuroscience

·May 16, 2025·4 min read

Astrocytes, Not Neurons, Drive Brain’s Attention and Alertness

For nearly a century, scientists believed that neuromodulators like norepinephrine adjusted brain communication by acting directly on neurons. A new study overturns this long-held view, revealing that astrocytes—support cells long considered secondary—are the key intermediaries.

Featured Neuroscience

·May 15, 2025·4 min read

All Senses Activate Deep Brain Hubs for Focus and Consciousness

A new study reveals that all human senses—sight, hearing, taste, and touch—activate the same deep brain regions linked to consciousness when attention is sharply focused. Using fMRI data from over 1,500 healthy participants, researchers found that sensory input, regardless of the type, engages the midbrain reticular formation and central thalamus. These areas are crucial for regulating alertness, attention, and awareness.

Featured Genetics Neuroscience

·May 15, 2025·5 min read

Recessive Genes May Quietly Shape Health, Learning, and Fertility

Carriers of recessive gene mutations, long thought to be unaffected, may actually face subtle disadvantages, including more medical issues, shorter educational attainment, and reduced reproductive success. A study of over 300,000 individuals reveals that people who carry recessive genes for intellectual disability are especially impacted, despite having only one mutated gene copy.

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