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Johns Hopkins Medicine

·June 27, 2025·5 min read

Brain Fatigue: How the Mind Decides When to Push or Quit

A new study reveals how the brain responds to mental exhaustion, identifying two key regions—the right insula and the dorsolateral prefrontal cortex—that become more active as cognitive fatigue builds. Using functional MRI, researchers observed how volunteers responded to demanding memory tasks and how their willingness to continue changed based on internal fatigue and external rewards.

Featured Neuroscience

·December 2, 2024·6 min read

Study Reveals Axons Are Like “Pearls on a String”

A new study challenges the long-held belief that axons, brain cell extensions, are tube-like, revealing instead a "pearl-on-a-string" structure. Using advanced freezing electron microscopy, researchers found these bead-like formations, termed "non-synaptic varicosities," across mouse neurons.

Featured Neuroscience

·November 12, 2024·4 min read

Robots Trained by Video: A Leap Toward Autonomous Surgery

For the first time, a robot has been trained to perform surgical procedures by watching videos of expert surgeons, marking a leap forward in robotic surgery. This breakthrough in "imitation learning" means that robots can learn complex tasks without needing to be programmed for every individual movement. By training on surgical footage, the robot replicated procedures with skill comparable to human surgeons, demonstrating its ability to adapt and even correct its actions autonomously.

Featured Neurology Neuroscience Psychology

·October 2, 2024·4 min read

Cannabis Pill Reduces Agitation in Alzheimer’s Patients by 30%

A new study reveals that dronabinol, a synthetic form of THC, can reduce agitation in Alzheimer’s patients by 30%. Unlike current medications, dronabinol showed fewer side effects, such as delirium or seizures, making it a safer alternative.

Brain Cancer Featured Neurology Neuroscience

·June 17, 2024·5 min read

Cancer Drug May Halt Parkinson’s Spread

Researchers discovered a novel therapeutic target for Parkinson's disease, the Aplp1 protein, which facilitates the spread of harmful alpha-synuclein proteins in the brain. Notably, an FDA-approved cancer drug targeting Lag3, a protein that interacts with Aplp1, has shown promise in blocking this spread in mouse models.

Brain Cancer Featured Neurology Neuroscience

·June 6, 2024·7 min read

Artificial Lymph Node Shows Promise in Cancer Treatment

Researchers developed an artificial lymph node that can train T-cells to recognize and kill cancer cells, potentially revolutionizing cancer treatment. This new method involves implanting a sac filled with immune components under the skin to boost the immune response against cancer.

Featured Neuroscience

·April 26, 2024·6 min read

Mice Strategize: Clever Rodents Test Hypotheses

Mice are capable of strategic thinking and hypothesis testing, challenging previous perceptions of their cognitive abilities. By observing mice's responses to auditory cues linked to specific actions, the researchers discovered that what appeared as mistakes were actually deliberate exploratory actions.

Featured Neuroscience Psychology

·April 22, 2024·7 min read

COVID-19 Didn’t Delay Development As Much As Believed

A new study found only modest developmental delays in children aged 5 and under due to the COVID-19 pandemic. Analyzing data from over 50,000 children using the Ages and Stages Questionnaire-3 (ASQ-3), the study observed slight declines in communication, problem-solving, and personal-social skills, with no significant changes in motor skills.

Featured Genetics Neuroscience

·April 12, 2024·6 min read

Proteasomes May Be Key to Sensory Signals

Researchers discovered a novel role of the proteasome, traditionally known as the cell's waste processor, in nerve cells. Their findings reveal that proteasomes in dorsal root ganglion neurons may act more like signal messengers, aiding in the differentiation between pain and itch sensations.

Featured Neuroscience Psychology

·April 10, 2024·7 min read

Cannabis Compound Curbs Anxiety

A new study illuminated the anxiety-reducing potential of d-limonene, a natural component of cannabis, when combined with THC. The research showcases how vaporized d-limonene can mitigate the anxiety and paranoia often induced by THC, opening avenues for safer medicinal and recreational cannabis use.

Featured Genetics Neuroscience

·December 27, 2023·6 min read

Protein Discovery Sheds Light on Circadian Rhythms

Researchers identify a crucial protein, Tenm3, in mice's visual system that stabilizes circadian rhythms by modulating the brain's response to light. This discovery has significant implications for treating sleep disorders and jet lag.

Featured Neurology Neuroscience

·December 7, 2023·6 min read

Serotonin Drop Linked to Memory Decline in Early Alzheimer’s Progression

Researchers discovered a potential link between lower levels of serotonin, the "happiness" chemical, and mild cognitive impairment (MCI), which could advance our understanding of Alzheimer's Disease (AD). Their study indicates that individuals with MCI have significantly reduced serotonin transporter levels, a factor that might contribute to memory problems and potentially AD.

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Johns Hopkins Medicine

Brain Fatigue: How the Mind Decides When to Push or Quit

Study Reveals Axons Are Like “Pearls on a String”

Robots Trained by Video: A Leap Toward Autonomous Surgery

Cannabis Pill Reduces Agitation in Alzheimer’s Patients by 30%

Cancer Drug May Halt Parkinson’s Spread

Artificial Lymph Node Shows Promise in Cancer Treatment

Mice Strategize: Clever Rodents Test Hypotheses

COVID-19 Didn’t Delay Development As Much As Believed

Proteasomes May Be Key to Sensory Signals

Cannabis Compound Curbs Anxiety

Protein Discovery Sheds Light on Circadian Rhythms

Serotonin Drop Linked to Memory Decline in Early Alzheimer’s Progression

Why Memories Change: How the Brain Rewrites the Past

Astrocytes Found to Drive Key Brain Changes in Nicotine Addiction

Warmth and Hugging Strengthen the Feeling of Being You

Microplastics Accelerate Alzheimer’s and Parkinson’s Damage

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