Weekly Neuroscience Update

A research collaboration has identified the specific nerve pathways responsible for relaying pain signals from the bowel to the brain, paving the way for new irritable bowel syndrome (IBS) and inflammatory bowel disease (IBD) treatments.

Game-based training improves not only the cognitive abilities of people with initial signs of developing dementia, but also leads to positive changes in the brain, according to two new studies.

A next-generation neuroprosthetic hand that restores a sense of touch is moving into a pivotal home-use clinical trial. The “iSens” system uses implanted electrodes to read muscle intent and stimulate nerves, relaying fingertip sensations to the brain so the prosthesis feels embodied.

A new breakthrough demonstrates how robots can now integrate both sight and touch to handle objects with greater accuracy, much like humans.

Researchers have traced a neural mechanism that explains why humans explore more aggressively when avoiding losses than when pursuing gains. Their work reveals how neuronal firing and noise in the amygdala shape exploratory decision-making.

Scientists have found a way to stop brain cancer cells spreading by essentially ‘freezing’ a key molecule in the brain.

Researchers have developed an ultrasound device that can precisely stimulate areas deep in the brain without surgery, opening up new possibilities for neurological research and the treatment of disorders such as Parkinson’s disease.

Artificial intelligence can detect and interpret social features between people from images and videos almost as reliably as humans, according to a new study published in the journal Imaging Neuroscience.

A large study of nearly 13,000 adults found that consuming high levels of certain artificial sweeteners is associated with faster declines in memory and cognitive function over an eight-year period. The effect was particularly strong in people with diabetes and those under 60. While the study does not prove causation, it raises concerns about the long-term brain health risks associated with common sugar substitutes.

Experiments have shown that AI can develop in-context learning abilities after extensive incremental practice, much like humans do.

A new study suggests that autism may be linked to the rapid evolution of brain cell types unique to humans. Researchers have found that outer-layer neurons in the human brain evolved significantly faster than in other apes, with notable changes in autism-associated genes.

A new study shows that brain iron levels, measured using a specialized MRI technique, can predict cognitive decline years before symptoms of Alzheimer’s disease appear.

People with chronic insomnia may experience faster declines in memory and thinking skills as they age—along with brain changes that can be seen on imaging scans—than people who do not have chronic insomnia, according to a study published in Neurology.

Researchers have discovered how the brain develops reliable visual processing once the eyes open.

Scientists discovered how the brain uses objects to anchor our sense of direction, solving part of the mystery of spatial navigation. Experiments in mice showed that cells in the postsubiculum fired strongly when facing an object, while cells in other directions were suppressed, sharpening orientation.

In adults aged 60 years and older, tinnitus, especially severe and prolonged tinnitus, is significantly associated with cognitive impairment, according to a study published in Brain Sciences.

A more precise and personalized form of electric brain stimulation may be a more effective and faster treatment for people with moderate to major depression compared to other similar treatments, according to a UCLA Health study.

Finally this week, researchers may have found a way to limit the debilitating damage strokes can cause.

Weekly Neuroscience Update

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*The study design and data processing pipeline for SeeMe. Credit: Communications Medicine (2025).*

SeeMe, a computer vision tool, was able to detect low-amplitude, voluntary facial movements in comatose patients with acute brain injury days before clinicians could identify overt responses.

A new neuroimaging study reveals that child neglect alone, without other forms of abuse, can alter critical brain pathways. Researchers found abnormalities in white matter regions tied to movement, attention, language, and emotional regulation.

Scientists have identified a distinct neurochemical signature that distinguishes Parkinson’s disease from essential tremor.

A team of researchers has developed a simple, three-minute brainwave test called Fastball EEG that can detect early signs of memory impairment associated with Alzheimer’s disease. Unlike traditional memory tests, it is passive and requires no active participation, making it more objective and accessible.

A large-scale study with 600 participants shows that music can genuinely evoke feelings of companionship by sparking social imagination.

A toxic protein forms dynamic pores in the membranes of brain cells—and that may be the key to understanding how Parkinson’s disease develops. This is the conclusion of a new study from Aarhus University, where researchers have developed an advanced method to track molecular attacks in real time.

A hormone produced by the brain, orexin, may play a central role in the functioning of the brain’s glymphatic system, which clears waste, according to a new study.

Researchers at Johns Hopkins Medicine say they have revealed a possible molecular connection between air pollution and an increased risk of developing Lewy body dementia. The findings contribute to a growing body of evidence suggesting that environmental factors may trigger harmful protein changes in the brain, leading to neurodegeneration.

A new treatment offers hope to end the pain of neuropathy.

Two new papers from Clinical Gastroenterology and Hepatology and Gastroenterology shed light on how gut-brain interactions, influenced by both biology and life circumstances, shape eating behaviors. Together, they highlight the importance of multidisciplinary, personalized approaches to digestive health and nutrition.

Neuroscientsts have shown for the first time the precise timing of nerve signals determines how the brain processes information.

A new large-scale study shows that Alzheimer’s disease is marked by the erosion of epigenomic control, where brain cells lose the ability to maintain stable gene expression. Using a multi-region atlas of 3.5 million cells, researchers found that vulnerable cells in key memory regions such as the hippocampus suffer breakdowns in nuclear compartmentalization and lose their “epigenomic information.”

Individuals with an increased risk of dementia due to Alzheimer’s disease may have impaired spatial orientation skills.

UCLA engineers have developed a wearable, noninvasive brain-computer interface system that utilizes artificial intelligence as a co-pilot to help infer user intent and complete tasks by moving a robotic arm or a computer cursor.

Macquarie University hearing researchers have discovered how our brains learn to listen, and how this can help us understand speech in noisy, echo-filled spaces.

Some sugar substitutes may come with unexpected consequences for long-term brain health, according to a study published in Neurology. The study examined seven low- and no-calorie sweeteners and found that individuals who consumed the highest amounts experienced faster declines in cognitive function, specifically thinking and memory skills, compared to those who consumed the lowest amounts.

Finally this week, scientists studying ways of improving motion sickness have found that playing different types of music may help people recover more effectively.

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*Neural recordings and general theta-phase locking. Credit: Nature Communications (2025).*

A research team has gained new insights into the brain processes involved in encoding and retrieving new memory content. The study is based on measurements of individual nerve cells in people with epilepsy and shows how they follow an internal rhythm.

A new study published in the Proceedings of the National Academy of Sciences offers insight into how past stress impacts a person’s response to new stress.

Stimulating the vagus nerve with a device attached to the outer ear can help make compassion meditation training more effective at boosting people’s capacity for self-kindness and mindfulness, finds a new study.

A world-first study into young adults’ brain activity has found that TV and gaming are associated with increased focus, while social media is associated with decreased focus.

Researchers have discovered that whether you are right- or left-handed influences which side of your brain processes fine visual details. The new “action asymmetry hypothesis” proposes that brain specialization for high- and low-frequency visual information develops from the everyday way we use our hands. In right-handers, the left hemisphere processes high-frequency vision; in left-handers, this is reversed. The findings challenge long-standing theories that such asymmetries develop in the womb or are tied directly to language processing.

Scientists have identified a promising nonpharmaceutical treatment that rejuvenates aging brain cells and clears away the buildup of harmful proteins associated with Alzheimer’s disease.

It may be time to rethink certain genetic mutations associated with two devastating neurodegenerative disorders—amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD)—according to a new Nature Neuroscience study.

Research has shed new light on an age-old question: what makes the human brain unique? The study is published online in Science Advances.

Athletes who participate in combat sports like boxing and mixed martial arts and grow up in disadvantaged neighborhoods may be more likely to show signs of brain changes associated with neurodegeneration than athletes from affluent neighborhoods, according to a study published in Neurology Open Access.

A team of researchers has developed a data-driven method for optimizing deep brain stimulation (DBS) settings that significantly improved walking performance in people with Parkinson’s disease.

Scientists have built the first “microwave brain” chip capable of processing both ultrafast data and wireless communication signals at once. By harnessing analog, nonlinear microwave physics instead of conventional digital circuitry, the chip can decode radio signals, track radar targets, and classify high-speed data streams in real time.

Finally, this week, stronger coordination between the brain and the stomach’s natural rhythm is linked to higher levels of anxiety, depression, and stress, according to the largest study of its kind.

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*A) Illustration of the experimental design. B) Averaged power spectra and time–frequency representations (TFR) were extracted from two regions of interest. Credit: Imaging Neuroscience (2025)*

Using a custom-built tool to analyze the electrical activity from neurons, researchers have identified a brain-based biomarker that could be used to predict whether mild cognitive impairment will develop into Alzheimer’s disease.

New research reveals neurocognitive correlates of testosterone in young men that shape generosity and self-worth.

By understanding differences in how people’s brains are wired, clinicians may be able to predict who would benefit from a self-guided anxiety care app, according to a new analysis from a clinical trial led by Weill Cornell Medicine and NewYork-Presbyterian investigators.

Novel imaging research indicates that young adults with a higher genetic risk for depression showed less brain activity in several areas when responding to rewards and punishments.

A new study reveals that long-term adaptive cycling can measurably reshape brain signals in people with Parkinson’s Disease, offering clues into how exercise relieves motor symptoms. Researchers used deep brain stimulation (DBS) implants to track neural activity before and after 12 sessions of dynamic cycling.

Scientists bring us closer to understanding how the body detects different sensations such as pain, itch, and touch.

A recent genetic study has identified neurological mechanisms as key drivers of chronic cough. The findings significantly advance our biological understanding of the condition, shedding light on potential avenues for new treatments.

A large-scale analysis of health records reveals that subtle signs of multiple sclerosis (MS) may appear more than a decade before diagnosis.

In a discovery that could guide the development of next-generation antidepressants and antipsychotic medications, researchers have developed new insights into how a critical brain receptor works at the molecular level and why that matters for mental health treatments.

Finally, this week, new research has found stress-controlling brain cells switch on and off in a steady rhythm about once every hour—even when nothing stressful is happening.

Weekly Neuroscience Update

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A new study published in Scientific Reports has introduced a promising diagnostic tool that could dramatically shorten the long wait times many families face when seeking evaluations for autism and attention-related conditions. The research team used artificial intelligence to analyse subtle patterns in how people move their hands during simple tasks, identifying with surprising accuracy whether someone is likely to have autism, attention-deficit traits, or both. The method, which relies on wearable motion sensors and deep learning, could one day serve as a rapid and objective screening tool to help clinicians triage children for further assessment.

New research is investigating how childhood adversity rewires brain circuits that control emotion, memory, and attention, increasing the risk of impulsive and pathological aggression.

A groundbreaking study has revealed that genes linked to mental and neurodegenerative disorders, such as autism, depression, and Parkinson’s, begin influencing brain development during the earliest fetal stages. These genes are already active in neural stem cells—the progenitors that form the brain—long before symptoms arise.

Researchers at the University of Michigan have illuminated a complete sensory pathway showing how the skin communicates the temperature of its surroundings to the brain.

Patients with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) may be closer to personalized care, according to new research that shows how the disease disrupts interactions between the microbiome, immune system, and metabolism.

A new study using direct recordings from human brains reveals how the amygdala and hippocampus coordinate to form and retrieve emotional memories.

A personalised brain stimulation system powered by AI that can safely enhance concentration from home has been developed by researchers from the University of Surrey, the University of Oxford and Cognitive Neurotechnology. Designed to adapt to individual characteristics, the system could help people improve focus during study, work, or other mentally demanding tasks.

In the largest study of its kind, researchers linked irregular sleep patterns to elevated risk for 172 diseases.

Neuroscientists have grown a novel whole-brain organoid, complete with neural tissues and rudimentary blood vessels. This advance could usher in a new era of research into neuropsychiatric disorders such as autism.

Researchers have successfully mapped the entire neural circuit responsible for transmitting cool temperature signals from the skin to the brain.

A new brain imaging study reveals that how people expect pain relief—through visual cues or treatment explanations—can significantly influence how much pain they actually feel. External cues, like symbols signaling less pain, consistently reduced pain perception and altered brain regions tied to pain processing.

Finally this week, a new international study confirmed a significant post-pandemic rise in disorders of gut-brain interaction, including irritable bowel syndrome (IBS) and functional dyspepsia.

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*Experimental design, ripple detection, and ripple properties. Credit: Nature Communications (2025)*

A research team has identified, for the first time in humans a key neurophysiological mechanism in memory formation: ripple-type brain waves—high-frequency electrical oscillations that mark and organize the different episodes or fragments of information that the brain stores as memories.

Scientists have discovered how a key protein helps maintain strong connections between brain cells that are crucial for learning and memory.

New research shows that signs of Alzheimer’s disease can already be detected in the blood of people as young as their 40s. Finnish scientists found elevated Alzheimer’s-related biomarkers in middle-aged adults, especially among those with maternal history or kidney disease.

A new study questions whether playing youth football leads to harmful protein buildup in the brain.

Receiving six or more prescriptions of the drug gabapentin for low back pain is associated with significantly increased risks of developing dementia and mild cognitive impairment, finds a large medical records study.

A large genetic study reveals that cannabis use disorder is strongly linked to increased risk for multiple psychiatric disorders, including depression, PTSD, ADHD, and schizophrenia.

A common sugar substitute, erythritol, widely used in “sugar-free” and low-carb products, may increase stroke risk by damaging brain blood vessel cells. A new study found that erythritol exposure reduced nitric oxide, increased vessel constrictors, impaired clot-busting abilities, and boosted free radical production in these cells.

Finally, this week, neuroscientists have discovered a signature ‘wave’ of activity as the brain awakens from sleep.

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After following a protocol of sensory-motor activities with cognitive engagement for two months, eleven children aged 10 to 12 who were diagnosed with dyslexia showed improvement in reading speed. This initiative combined recreational activities that incorporated motor and social skills, demonstrating promise in improving children’s reading performance.

Parkinson’s disease often starts on one side of the body, and new research shows this asymmetry influences how non-motor symptoms progress.

Memory helps us make sense of the present by retrieving past experiences based on either surface-level similarities or deeper conceptual connections. A recent study reveals that when a familiar mental category — like excuses or conflicts — is available, memory prioritizes structural, abstract links over superficial cues.

A device combining ultrasound and advanced imaging to provide information for the safe delivery of drugs into the brain has been developed by University of Queensland researchers.

A new study has upended decades of neuroscience dogma, revealing that dopamine, a neurotransmitter critical for movement, motivation, learning and mood, communicates in the brain with extraordinary precision, not broad diffusion as previously believed.

Researchers have found a new drug that may boost the brain’s ability to heal itself after injury. The discovery could lead to significant advances in treating traumatic brain injuries, or TBIs.

A study published in iScience suggests that the magic of live performance art may be reflected in our brains. When people watched a live contemporary dance performance, their brainwaves synced up, signaling shared focus and attention—but that synchrony didn’t occur when people watched the same performance alone on video.

A research team has developed a novel deep learning framework that significantly improves the accuracy and interpretability of detecting neurological disorders through speech.

A new study reveals that our organs age at different speeds, and those differences can predict future disease risk and even life expectancy. Using blood-based protein signatures from over 44,000 participants, researchers developed an algorithm to estimate the biological age of 11 organ systems.

Finally this week, a study in the journal Science presents compelling new evidence that neurons in the brain’s memory center, the hippocampus, continue to form well into late adulthood.

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Coloured regions show where brain volume was associated with deviant lifestyle and antisocial behavior in individuals with psychopathic traits. Credit: European Archives of Psychiatry and Clinical Neuroscience (2025).

A recent study has shed light on the brain structure differences associated with psychopathy—a condition known to be one of the strongest predictors of persistent violent behaviour. The findings are published in the journal European Archives of Psychiatry and Clinical Neuroscience.

Researchers are using a new approach to brain imaging that could improve how drugs are prescribed to treat Parkinson’s disease.

An analysis of over 375 trials shows that structured exercise significantly reduces depression and anxiety in children and teens. Low-intensity resistance activities like light weights were most effective for easing anxiety, while moderate mixed-mode programmes worked best for depression, especially when lasting under 12 weeks.

A new technology that uses clinical MRI machines to image metabolic activity in the brain could give researchers and clinicians unique insight into brain function and disease.

Diets rich in phosphate additives, commonly found in processed foods, can increase blood pressure by triggering a brain signaling pathway and overactivating the sympathetic nervous system that regulates cardiovascular function, UT Southwestern researchers discovered. Their findings could lead to treatment strategies for patients with hypertension caused by overconsumption of foods containing high levels of phosphates.

The long-standing belief that left-handed people are more creative has been challenged by a new meta-analysis of over a century of research.

New research proposes a unified theory of brain function based on criticality—a state where the brain teeters between order and chaos, allowing it to learn, adapt, and process information optimally. When the brain strays from this delicate balance, cognitive performance weakens, and neurological disorders such as Alzheimer’s may begin to take hold.

A drug used for Parkinson’s disease has been shown to be effective in reducing the symptoms of difficult to treat depression, according to a study led by the University of Oxford.

A recent study shows that older adults may compensate for age-related cognitive decline by enhancing activity in a specific brain region linked to attention—the locus coeruleus (LC). In a brain imaging study, older participants showed stronger LC responses when interpreting ambiguous facial expressions, compared to younger adults.

Individuals with versus those without tinnitus have significantly lower scores on cognitive function tests, according to a recent study published in Frontiers in Neurology.

New research shows how the brain navigates emotional transitions, using music as a tool to map changing neural patterns. Scientists found that emotional responses in the brain depend heavily on the listener’s prior emotional state.

A clinical trial has revealed that Ambroxol, a common cough medicine in Europe, may help slow cognitive decline in people with Parkinson’s disease dementia.

In a study of 200 former professional rugby players (aged 30–61 years old), researchers from Imperial College London, University College London and the UK Dementia Research Institute found no cases of early-onset dementia.

Finally this week, new research findings show how synaptic connections in the cerebral cortex can strengthen during sleep, offering insight into how the brain continues learning even while we rest.

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*Credit: Biological Psychiatry / Hannon et al.*

A novel study aimed at disentangling the neurological underpinnings of depression shows that multiple brain profiles may manifest as the same clinical symptoms, providing evidence to support the presence of both one-to-one and many-to-one heterogeneity in depression. The findings of the study in Biological Psychiatry, highlight the layered and complex interactions between clinical symptoms and neurobiological sources of variation.

New research shows that babies as young as eight months can flexibly adapt their learning strategies to changing environments.

Brain networks responsible for sensing, understanding, and responding emotionally to pain develop at different rates in infants, with the conscious understanding of pain not fully developed until after birth, finds a new study.

People living with autoimmune diseases face nearly twice the risk of developing persistent mental health disorders like depression, anxiety, and bipolar disorder, according to a massive UK-based study.

New research shows that individuals with higher cognitive ability have stronger, more flexible synchronization of brain rhythms—specifically theta waves—in the midfrontal region during mentally demanding tasks. These neural signals coordinate dynamically, especially during moments of decision-making, allowing people to maintain focus and adapt more quickly to changing rules.

A recent study leveraged machine learning to identify the key lifestyle and health factors influencing cognitive performance throughout life.

New research reveals that autism and congenital heart disease may share a common biological basis—tiny cellular structures called cilia. Scientists found that mutations in genes affecting cilia formation disrupt both brain and heart development, helping explain why the two conditions often co-occur.

Researchers have identified a novel gene associated with neurodevelopmental disorders and epilepsy.

A first-of-its-kind clinical trial shows that ketamine treatment for severe, treatment-resistant depression is significantly more effective when paired with psychotherapy and supportive environments. Patients who underwent this combined treatment reported a 30% drop in depression symptoms, with reduced anxiety and suicidal thoughts lasting at least eight weeks.

A crucial link between the brain’s cleaning system and deterioration of neurons associated with Alzheimer’s disease has been discovered.

In a study published in Science Advances, researchers reveal that our bodies respond to acute (short‑term) and chronic (long‑lasting) pain in surprisingly different ways at the cellular level. Their discovery sheds new light on how pain becomes chronic—and opens the door to better‑targeted treatments.

A paper published in the Cochrane Database of Systematic Reviews has found that virtual reality (VR), when used in addition to standard therapy, can help stroke survivors regain arm movement.

Researchers investigating post-traumatic stress disorder (PTSD) at the single-cell level, aiming to understand how cellular communication may be disrupted in affected brains. They found impaired signaling in inhibitory neurons in PTSD, potentially explaining hyperarousal symptoms, and opposing patterns of microglial activity in PTSD versus depression. Vascular endothelial cells in PTSD brains also showed signs of dysfunction, possibly increasing stress hormone exposure.

A recent study shows that individual neurons in the hippocampus can respond to both slow and fast brain waves at the same time by switching between different firing modes.

For the first time, scientists using cryo-electron microscopy have discovered the structure and shape of key receptors connecting neurons in the brain’s cerebellum, which is located behind the brainstem and plays a critical role in functions such as coordinating movement, balance and cognition.

In a paper published in the journal Nature Communications, biomedical engineers have shown how two brain regions quickly adapt to shift focus from one planned destination to another.

A new neuroimaging study has identified distinct structural brain differences in individuals with psychopathy, particularly those with high antisocial traits. Reduced volumes were found in subcortical and cortical areas involved in emotion, decision-making, and social behavior.

Groundbreaking research has identified a new brain protein involved in the development of Parkinson’s disease and a way to modify it, paving the way for future treatments for the disease.

Living in disadvantaged neighborhoods may increase the risk of Alzheimer’s disease by elevating biomarkers associated with inflammation and neurodegeneration. A long-term study of 334 older adults found higher levels of tau and YKL-40, biomarkers linked to Alzheimer’s and brain inflammation, in people from less advantaged areas.

Psychosis may start not with hallucinations, but with subtle motor changes like reduced grip strength according to a new study.

In experiments with healthy volunteers undergoing functional MRI imaging, scientists have found increased activity in two areas of the brain that work together to react to, and possibly regulate, the brain when it’s “feeling” tired and either quits or continues exerting mental effort.

Finally, this week, newborn babies and patients with Alzheimer’s disease share an unexpected biological trait: elevated levels of a well-known biomarker for Alzheimer’s, as shown in a recent study.

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Cortical Resting-State Networks defined by Gordon’s Parcellation. Credit: *Journal of the American Academy of Child & Adolescent Psychiatry* (2025).

Exposure to high ambient temperatures is associated with lower connectivity in three brain networks in preadolescents, suggesting that heat may impact brain function.

A new study reveals that consuming high-calorie, highly processed foods for just five days can reduce the brain’s sensitivity to insulin, a key factor in obesity and type 2 diabetes. Researchers found that even in healthy individuals, short-term unhealthy eating altered brain function, mimicking effects seen in people with obesity.

Scientists are exploring the role of gut-brain axis in Parkinson’s, anxiety and long COVID.

New research highlights that optimal brain health is strongly linked to cardiovascular wellness. The study underscores that dementia and cognitive decline share risk factors with heart disease, suggesting these conditions are largely preventable by managing diet, exercise, cholesterol, blood sugar, and blood pressure.

Approximately 40 percent of adults with chronic pain experience depression or anxiety, according to a review published in JAMA Network Open.

A multidisciplinary team of researchers has discovered how lateral inhibition helps our brains process visual information, and it could expand our knowledge of sensory perception, leading to applications in neuro-medicine and artificial intelligence.

Brain changes may remain visible in brain scans after recovery from concussion, a new study shows.

Researchers are using photoacoustic imaging to observe brain activity and, in the process, discovering more about how it responds to different types of learning and experiences. Photoacoustic imaging uses optics and acoustics to generate a signal in biological tissues—in this case, the brain—where the signal provides structural and functional data and allows researchers to track factors such as brain activity.

A study exploring a new brain imaging technique is bringing stroke experts a step closer to better tailoring rehabilitation.

Scientists have uncovered new insights into how neurofilaments act like Velcro in neurodegenerative diseases, clogging up the brain and preventing normal function, according to a study published in the journal JCI Insight.

Poor sleep could have an impact on brain health, according to a new study from The Australian National University (ANU) published in the journal Sleep Medicine.

Mayo Clinic researchers have found a new way to more precisely detect and monitor brain cell activity during deep brain stimulation, a common treatment for movement disorders such as Parkinson’s disease and tremor. This precision may help doctors adjust electrode placement and stimulation in real time, providing better, more personalized care for patients receiving the surgical procedure.

A new neuroimaging study has revealed that viewing nature can help ease how people experience pain, by reducing the brain activity linked to pain perception.

An international team of scientists has revealed new clues about the neural mechanisms underlying memory formation and recognition in the developing human brain, according to a study published in Science Advances.

Poor sleep among older adults is linked to disruptions in the brain’s “waste removal system,” according to a recent study.

Research published in the Proceedings of the National Academy of Sciences reveals that brain aging isn’t a steady decline, but rather a series of shifts with key turning points. These transition points follow an S-shaped statistical curve with clear transition points, rather than either the late-life clinical onset or gradual linear decline previously assumed, suggesting there are specific windows when intervention could be most impactful.

Finally this week, new research reveals that our brains simplify complex social interactions by using basic mental “building blocks” or shortcuts.