Tag: music and the brain

Weekly Neuroscience Update

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Temporally removed goals activated the left anterior hippocampus and current goals activated the left posterior hippocampus. a Activation maps for the contrasts comparing the remote (distant future + near future + distant past + near past) > current are overlaid in yellow. b Activation maps for the contrasts comparing the current > remote are overlaid in green. c Activation for the temporally removed goals (yellow) and the current goals (green) shown concurrently on the brain. d The same goal, for instance fixing the space helmet, was anatomically dissociated along the longitudinal axis based on whether it was currently relevant, or relevant at a point removed in time. The left hippocampal region of interest (ROI) is displayed in white. Credit: Nature Communications (2024).

How does our brain distinguish between urgent and less urgent goals? Researchers have explored how our brain remembers and adjusts the goals we set for ourselves on a daily basis.

Ever heard just a snippet of a song and instantly known what comes next? Or picked up the rhythm of a chorus after just a few notes? New research has uncovered what happens in our brain when we recognize and predict musical sequences.

A new study provides the first anatomical, functional representation of the ocular surface in the central nervous system.

In a small study, researchers have discovered how a set of genes could cause neurons to die in sporadic amyotrophic lateral sclerosis (ALS). The results, published in Nature Aging, provide insight into the root causes of ALS and may lead to new ways to halt disease progression.

New research shows that the brains of sighted and blind people adapt in a similar way when they learn to use sound echoes to understand the world without vision.

People with type 2 diabetes who are treated with GLP-1 agonists, like Ozempic have a decreased risk of developing dementia, according to a new study from Karolinska Institutet published in the journal eClinicalMedicine.

A class of drugs already on the market to lower blood pressure appears to reduce adults’ risk of developing epilepsy, a team of researchers has discovered.

In a recent study, a Yale-led research team described for the first time a rare neurodevelopmental syndrome that begins affecting patients during infancy and typically causes developmental delays, severe seizures, cardiac dysrhythmia, and recurring infection.

Using sound to stimulate certain brain waves has the potential to help those with dementia or cognitive decline sleep better, reveals a new study.

Not all patients with depression respond to medication. Two recently published studies provide additional information on how an alternative treatment, transcranial magnetic stimulation (TMS), could be further enhanced. TMS differs from electroconvulsive therapy (ECT), which is also used to treat depression.

New research provides insights into the brain regions involved in paranoia.

A new study reveals variations of the visual saltation illusion, where rapid light flashes in peripheral vision create perceptual errors. The study shows that our brains misplace the second flash near the midpoint, regardless of its actual position. This finding challenges our understanding of visual processing and questions the reliability of eyewitness testimony. The research opens doors for further studies on visual perception and attention.

Researchers worldwide can now create highly realistic brain cortical organoids—essentially miniature artificial brains with functioning neural networks—thanks to a newly released proprietary protocol.

A new study reveals that a balanced ratio of neural excitation (E) and inhibition (I) is crucial for brain development and cognitive performance. Researchers found that lower E/I ratios in children correlate with better memory and intelligence. This balance is vital for preventing brain disorders and was measured using a novel AI and MRI technique. The findings could inform personalized treatments for mental health conditions.

A new ultra-high-performance brain PET system allows for the direct measurement of brain nuclei as never before seen or quantified.

Tau positron emission tomography (PET) has the best performance as a standalone marker for prediction of progression of mild cognitive impairment (MCI) to dementia, according to a study published online in JAMA Neurology.

Murdoch University’s Center for Healthy Aging is identifying new interventions to treat resting tremor in people with Parkinson’s disease.

New research reveals that sildenafil (Viagra) enhances brain blood flow and improves blood vessel function in patients at risk of vascular dementia. This study marks a significant advancement in addressing this condition.

Finally, this week, do our brains process natural voices and deepfake voices differently? Research conducted at the University of Zurich indicates that this is the case.

Weekly Neuroscience Update

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Massively parallel characterization and prediction of gene regulatory activity in the developing brain. Credit: Science (2024).

Scientists have leveraged machine learning to decode gene regulation in the developing human brain.

A new study has unveiled the most detailed view of the complex biological mechanisms underlying autism, showing the first link between genetic risk of the disorder to observed cellular and genetic activity across different layers of the brain.

Researchers have identified the unique features of an exceptionally rare set of childhood brain tumors—a discovery that could pave the way for more effective treatments.

Scientists have found that a new class of light-sensitive proteins are capable of turning off brain cells with light, offering scientists an unprecedentedly effective tool to investigate brain function. The study, published in Nature Communications, opens exciting new opportunities to apply optogenetics to investigate the brain activity underlying neurodegenerative and psychiatric disorders such as Parkinson’s disease and depression.

A new study suggests that increased nightmares and hallucinations can signal the onset of autoimmune diseases like lupus.

Researchers are investigating the connection between gut bacteria and Alzheimer’s disease. They believe harmful metabolites from bad bacteria can travel to the brain, causing inflammation and potentially triggering dementia.

Nostalgic music activates brain areas linked to memory, reward, and self-processing. This discovery could help improve the quality of life for those with dementia.

A new study finds widespread differences in brain development between autistic boys and girls ages 2-13. The study found that girls have a thicker cortex at age 3 and faster cortical thinning into middle childhood compared to boys.

A research team has made a major stride in using AI to replicate how the brain organizes sensory information to make sense of the world, opening up new frontiers for virtual neuroscience.

Researchers who have studied how dehydration affects cognitive performance found that even mild dehydration can diminish a person’s ability to pay attention to tasks over time. The findings underscore the importance of proper hydration to the healthy functioning of people as they age.

By exploring the effects of sport on memory, scientists have discovered compensatory mechanisms in the brains of young individuals at genetic risk of developing Alzheimer’s disease.

A new 3D model shows how implantable stimulators—the kind used to treat chronic pain—can target neurons that control specific muscles to provide rehabilitation for people with neurological disorders such as stroke and spinal cord injuries.

A new study published in the journal Brain has identified a specific brain network hub that plays a key role in stuttering.

Regular high caffeine consumption affects dopamine function in patients with Parkinson’s disease, shows a new international study. Caffeine consumption before undergoing diagnostic brain dopamine imaging may also affect the imaging results. The research results were published in the Annals of Neurology.

Finally this week new research shows aging reduces sensitivity and discriminative ability for heat pain, but not pressure pain. 

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The proposed neural speech decoding framework. Credit: Nature Machine Intelligence (2024)

Scientists have been working on neural speech prostheses, special devices that can help people who have trouble speaking by translating brain activity into speech.

New research findings provide a novel understanding of how the human brain regulates emotions, distinguishing between emotion generation and regulation. By analyzing fMRI studies, researchers identified specific brain regions, including areas of the anterior prefrontal cortex, that are key to emotion regulation.

The sense of smell is highly influenced by the cues from other senses, while the sense of sight and hearing are affected to a much lesser extent, shows a new study in Journal of Neuroscience.

Researchers have uncovered a previously unknown source of two key brain waves crucial for deep sleep: slow waves and sleep spindles. Traditionally believed to originate from one brain circuit linking the thalamus and cortex, the team’s findings, published in Scientific Reports, suggest that the axons in memory centers of the hippocampus play a role.

Earlier menopause combined with a higher risk of cardiovascular disease is linked to an increased risk of thinking and memory problems later, according to new research.

A noninvasive brain stimulation treatment improved depression and anxiety symptoms among older adults in a new study. The findings, published in the journal Brain Stimulation, suggest the treatment, known as transcranial direct current stimulation, or tDCS, holds promise as a noninvasive, drug-free option to treat depression and anxiety symptoms, which affect 1 in 4 older adults.

A new study explores the influence of personalized music on cognitive arousal and performance.

Finally this week, new research has found human brains are getting larger. Study participants born in the 1970s had 6.6% larger brain volumes and almost 15% larger brain surface area than those born in the 1930s.

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A cell membrane is illustrated to show the surface in red. Blue objects are proteins, including ion channels, which can send electrical impulses into cells. Lipids, or fats, are in yellow. In this cross section, an ion channel associates with a lipid raft. The function of the lipid structures is regulated by cholesterol. Mechanical force can deplete the cholesterol and release the ion channel, changing activity within the cell. Credit: Scott Hansen, Ph.D., The Wertheim UF Scripps Institute

New research shows how physical pressure on cells can reduce pain signals, while excessive cholesterol clumps in cell membranes can interfere with that process.

Researchers have advanced our understanding of the neuronal basis of spatial memory. Their research reveals that during spatial memory tasks, different types of nerve cells activate in unison, coordinated by brain waves known as “ripples.”

Researchers have unveiled a pioneering technology capable of real-time human emotion recognition, promising transformative applications in wearable devices and digital services.

Children who lived in areas with higher levels of airborne lead in their first five years of life appeared to have slightly lower IQs and less self-control, with boys showing more sensitivity to lead exposure, according to a new study.

New research challenges the conventional picture of Parkinson’s disease.

A neurotransmitter previously thought only to calm neurons may also play a role in waking them up, according to a study published in the journal PLOS Biology, a discovery that challenges the textbook view of how neurons communicate with one another in the brain.

Researchers have achieved a breakthrough in mapping the brain’s ‘dysfunctome’—key dysfunctional circuits linked to disorders like Parkinson’s, dystonia, OCD, and Tourette’s syndrome.

Scientists have delved into the world of chemical neuromodulators in the human brain, specifically dopamine and serotonin, to reveal their role in social behavior. The study revealed a previously unknown neurochemical mechanism for a well-known human tendency to make decisions based on social context—people are more likely to accept offers from computers while rejecting identical offers from human players.

New research identifies nerve endings that shed light on gut-brain communication.

Live music significantly amplifies emotional responses in the brain compared to recorded tunes. By measuring amygdala activity, researchers found that live performances evoke stronger emotional reactions, fostering a deeper cognitive and affective processing throughout the brain.

A new study reveals that oxygenation levels in the placenta during the last trimester of pregnancy are a key predictor of the development of the cerebral cortex and likely childhood cognition and behavior.

Blood vessels that cross-connect adjacent arterial trees regulate blood flow to the brain in stroke patients. Researchers have now shown that these vessels prevent brain hemorrhage following treatment to remove blood clots.

Researchers have developed a simulator that enables artificial visual observations for research into the visual prosthesis.

A cross-cultural study has revealed that music universally influences bodily sensations and emotions, transcending cultural boundaries. Researchers from Western and East Asian backgrounds discovered that emotional and structural characteristics of music consistently evoke similar bodily sensations—such as changes in the chest, limbs, and head regions—regardless of cultural background.

A new study finds concussions alter connectivity among brain regions.

New research has unveiled a crucial role of sleep: brainwaves facilitate the cleansing of the brain by flushing out waste. This discovery not only underscores the brain’s non-dormant state during sleep but also highlights a sophisticated system where neurons’ synchronized activity powers the flow of cerebrospinal fluid, effectively removing metabolic waste and potentially neurodegenerative disease-causing toxins.

Finally this week, COVID-19 may have an impact on people’s cognitive and memory abilities that lasts a year or more after infection, according to a new study by Imperial College London researchers.

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Melodic pitch, pitch-change, and expectation modulate STG activity during music listening. (A) Three melodic features visualized for an example melody. (B) Electrodes across all participants (N = 8) plotted on a common brain. Color indicates the peak evoked high-frequency activity (HFA) averaged across all musical phrases. (C) Responses at three example electrodes demonstrating distinct tuning to pitch. Credit: Science Advances (2024)

Researchers have developed a precise map of what is happening in the cerebral cortex when someone hears a melody.

Scientists have made a groundbreaking discovery, identifying a rare lipid as a crucial factor in ferroptosis, a unique form of cell death. The findings provide new detail on how cells die during ferroptosis and could improve understanding of how to stop ferroptosis in contexts where it is harmfully occurring– in neurodegenerative diseases, for example– or induce it in contexts where it could be useful, such as using it to kill dangerous cancer cells.

Our brains are “programmed” to learn more from people we like – and less from those we dislike. This has been shown by researchers in cognitive neuroscience in a series of experiments.

An intensive meditation-based intervention (iMI) significantly improves positive symptoms, particularly refractory hallucinations and delusions, in male patients with schizophrenia, according to a new study.

Indigenous people may be more likely to have a stroke than non-Indigenous people, according to a systematic review that looked at populations around the world.

A new study highlights the critical link between sleep, circadian rhythms, and psychiatric disorders, suggesting that disturbances in sleep and internal body clocks can trigger or exacerbate mental health issues. The research underscores the prevalence of sleep-circadian disturbances across all psychiatric disorders, pointing to the need for holistic treatments that address these factors.

For individuals with post-COVID-19 condition, cognitive symptoms are common, according to a study published online Feb. 14 in JAMA Network Open.

Researchers have developed an artificial intelligence model that accurately determines the sex of individuals based on brain scans, with over 90% success. This breakthrough supports the theory that significant sex differences in brain organization exist, challenging long-standing controversies.

A new population-based study reveals the roles of maternal and fetal genes in the growth of a baby’s cerebral cortex.

A new study explains how dopamine influences movement sequences, offering hope for Parkinson’s disease (PD) therapies. Researchers observed that dopamine not only motivates movement but also controls the length and lateralization of actions, with different neurons activating for movement initiation and reward reception.

New research sheds light on what goes on inside people’s heads as they make decisions to obtain information about the future.

Moderate/severe and penetrating traumatic brain injury (TBI) are associated with an increased risk for subsequent development of brain cancer, according to a study published online Feb. 15 in JAMA Network Open.

For the first time, researchers have mapped out the proteins implicated in the early stages of motor neuron disease (MND).

In a study published in the Journal of Neuroscience, scientists demonstrated the effectiveness of using low-intensity focused ultrasound to modulate the activity in a critical region in the brain that processes and regulates pain signals.

Finally this week, new research shows how empathy can be socially transmitted.

Weekly Neuroscience Update

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Credit: Neuron (2024). DOI: 10.1016/j.neuron.2024.01.013

A new study has found the immune system in the blood of Alzheimer’s patients is epigenetically altered. That means the patients’ behavior or environment has caused changes that affect the way their genes work.

A team of researchers has developed a breakthrough new blood test for schizophrenia, a psychiatric disorder that includes hallucinations and delusions.

Many patients continue to struggle in the wake of the pandemic as they grapple with ongoing symptoms triggered by COVID-19 infection, a condition commonly known as long COVID. However, the onset of symptoms such as brain fog, fatigue, headache, and other types of pain is not unique to COVID infection, according to a new study.

Researchers have discovered a molecular complex crucial for the transport of mitochondria within neurons, offering new insights into preventing neurodegenerative diseases. 

A landmark advancement in neural prosthetics has been made, demonstrating the ability to recall specific memories using a newly developed memory decoding model (MDM). The study, involving 14 adults with epilepsy, showed that MDM stimulation significantly improved memory performance, particularly in those with impaired memory, offering hope for treating conditions like Alzheimer’s disease, stroke, or head injury. This research signifies a major step toward creating interventions that can restore lost memory functions, potentially aiding individuals in living more independently.

A new study reveals that excessive stress during adolescence can lead to long-lasting changes in gene expression in the brain, particularly those related to bioenergy functions.

Researchers developed an innovative AI tool, DeepGO-SE, that excels in predicting the functions of unknown proteins, marking a significant advance in bioinformatics. Leveraging large language models and logical entailment, this tool can deduce molecular functions even for proteins without existing database matches, offering a groundbreaking approach to understanding cellular mechanisms.

Researchers have identified cortical gray matter thinning as a potential early biomarker for dementia. 

Smoking not only affects immune responses in the short term but also leaves a lasting imprint on the body’s defense mechanisms. This is the finding recently made by a team of scientists at the Institut Pasteur using the Milieu Intérieur cohort of 1,000 healthy volunteers, established to understand variability in immune responses.

MIT neuroscientists have found that the brain’s sensitivity to rewarding experiences—a critical factor in motivation and attention—can be shaped by socioeconomic conditions.

Taking an anticoagulant, or blood-thinning medication, can increase one’s risk of—or exacerbate—a brain bleed, also known as a brain hemorrhage, which is the deadliest type of stroke. Now, new research finds that faster treatment for these patients is associated with a greater likelihood of survival.

Finally this week, language and culture may influence how our brains process emotional faces according to new research.

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Illustration of the triple-wise correlation network model. Credit: Science Advances (2024). 

By mapping brain activity in three dimensions, researchers have achieved a more detailed picture of how the brain changes with age.

A new study reveals epigenetic alterations in the immune system of Alzheimer’s patients’ blood, suggesting environmental or behavioral factors could influence Alzheimer’s risk. The study indicates these epigenetic changes affect genes associated with Alzheimer’s susceptibility, potentially due to factors like viral infections or pollutants.

Almost half of people who suffer a sports-related traumatic brain injury are still experiencing physical symptoms after six months according to new research findings.

A new study suggests a novel link between depression and higher body temperatures, analyzing data from over 20,000 participants worldwide. While the causal relationship remains unclear, findings indicate that body temperature increases with the severity of depression symptoms, offering a potential new avenue for treatment.

Acupuncture may improve language function in patients with poststroke motor aphasia, according to a new study.

Researchers have found that adolescents being bullied by their peers are at greater risk of the early stages of psychotic episodes and in turn experience lower levels of a key neurotransmitter in a part of the brain involved in regulating emotions.

The contraceptive pill also affects the brain and the regulation of emotions, say researchers.

An international research team has developed a computational biology tool, based on multi-level network analysis, to achieve an integrated vision of multiple sclerosis. This tool could be used to study other complex diseases such as types of dementia.

A new scanning study of 390 babies has shown distinct patterns between term and pre-term babies in the moment-to-moment activity and connectivity of brain networks.

Researchers have developed a machine-learning tool that accurately identifies individuals at high risk of psychosis through MRI brain scans. This innovative approach, which achieved an 85% accuracy rate in training and 73% using new data, offers a promising avenue for early intervention in psychosis, potentially improving treatment outcomes.

A new study highlights music’s crucial role in enhancing the quality of life for people aged 50 to 80, with 98% reporting at least one health benefit from engaging with music.

Researchers have unveiled the “MiniTouch,” a revolutionary device that equips prosthetic limbs with the ability to convey thermal sensations to amputees, bridging a significant gap in sensory feedback technology. This breakthrough allows a transradial amputee to differentiate between objects of varying temperatures and experience more human-like touch, enhancing both functional use and emotional connection with the prosthesis.

Scientists have found a new treatment target for CDKL5 deficiency disorder (CDD), one of the most common types of genetic epilepsy.

A new study presents a compelling case for the integration of Large Language Models (LLMs) like ChatGPT into neuroscience, highlighting their potential to transform research by analyzing vast datasets beyond human capability. The authors suggest that LLMs can bridge diverse neuroscience fields by communicating with each other, thus accelerating discoveries in areas such as neurodegeneration drug development.

Finally this week, researchers have developed a robotic sensor that incorporates artificial intelligence techniques to read braille at speeds roughly double that of most human readers.

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Credit: Cell Stem Cell (2024). DOI: 10.1016/j.stem.2023.12.009

Researchers have developed the world’s first 3D-printed brain tissue that grows and behaves similarly to natural brain tissue, marking a significant leap forward for neurological and neurodevelopmental disorder research.

For patients with Parkinson disease differences in quality of life outcomes are seen with deep brain stimulation of the subthalamic nucleus (STN-DBS), according to a recent study.

New findings published in the journal Nature Neuroscience have shed light on a mysterious pathway between the reward center of the brain that is key to how we form habits, known as the basal ganglia, and another anatomically distinct region where nearly three-quarters of the brain’s neurons reside and assist in motor learning, known as the cerebellum.

Researchers have shown that a blood test can pinpoint the underlying cause of brain injury in newborns.

A new study suggests that high-intensity training (HIT), compared to conventional training, may improve walking ability in patients with chronic traumatic brain injury (TBI). Possible secondary benefits may include improved aerobic capacity/efficiency and cognition.

A team of scientists has unveiled a potential game-changer in the fight against glioblastoma, the most common and currently incurable form of brain cancer.

Combining brain stimulation with intense physical rehabilitation helped stroke survivors recover movement in their arms and hands and maintain these improvements for one year, according to a study to be presented at the American Stroke Association’s International Stroke Conference 2024.

Psychologists have investigated the extent to which neuromodulation of the brain with ultrasound waves influences people’s behavior. The results can also be used as a basis for therapeutic purposes.

A preliminary study reveals that intravenous injections of ginkgo biloba components could significantly improve early cognitive recovery in ischemic stroke patients. Conducted across multiple centers in China, the research tested the effects of ginkgo diterpene lactone meglumine (GDLM) on 3,163 stroke survivors, showing notable improvements in cognitive scores compared to a placebo group.

The brains and blood of people with a history of excessive drinking show cellular evidence of premature aging.

A new study gives insights into the underlying mechanisms of the formation of protein clumps in Alzheimer’s disease. The study could pave the way for new treatments for this devastating neurodegenerative disorder.

Finally, this week, engaging in music throughout your life is associated with better brain health in older age, according to a new study.

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Microscopic photos observed through changes of the flourescence of the synapse sensor (SynapShot) by cultivating the neurons of an experimental rat and expressing the SynapShot. The changes in the synapse that is created when the pre- and post-synaptic terminals come into contact and the synapse that disappears after a certain period of time are measured by the fluorescence of the SynapShot. Credit: KAIST Optogenetics & RNA therapeutics Lab

New research has observed the processes of memory and cognition in real-time.

A new study reveals significant findings in the fight against Long Covid. Through a comprehensive analysis of blood serum from 113 patients, researchers discovered changes in blood serum proteins related to the complement system, coagulation, and tissue injury in Long Covid patients.

New research has found that exercising both before and after learning optimizes memory formation, with a notable 10% improvement in remembering motor skills.

A new study employs generative AI to shed light on how the human brain processes memories for learning, imagination, and planning. The study used a computational model resembling the hippocampus and neocortex’s neural networks to simulate memory encoding and retrieval.

A new study has reported that SARS-CoV-2, the virus that causes COVID, can infect dopamine neurons in the brain and trigger senescence—when a cell loses the ability to grow and divide.

Researchers have taken the first steps to treat Alzheimer’s disease, Parkinson’s disease and Type 2 diabetes by creating multiple patent-pending compounds shown to inhibit protein aggregation associated with those diseases.

A neuroscientific study is paving the way for improving the diagnosis and treatment of Alzheimer’s.

A new study reveals limitations in the current use of mathematical models for personalized medicine, particularly in schizophrenia treatment. Although these models can predict patient outcomes in specific clinical trials, they fail when applied to different trials, challenging the reliability of AI-driven algorithms in diverse settings.

Research into the nature of memory reveals how cells that store information are stabilized over time.

A new study explores how infants and toddlers acquire language. Findings reveal early comprehension begins around 6-7 months, and significant improvements in language understanding occur around a child’s first birthday.

New research looks at ways to predict when a migraine attack will occur.

Researchers at the National Institutes of Health have found overactivation in many brain regions, including the frontal and parietal lobes and the amygdala, in unmedicated children with anxiety disorders. They also showed that treatment with cognitive behavioral therapy (CBT) led to improvements in clinical symptoms and brain functioning.

An international research has proposed a new model for classifying Parkinson’s disease.

A ribbon of brain tissue called cortical gray matter grows thinner in people who go on to develop dementia, and this appears to be an accurate biomarker of the disease five to 10 years before symptoms appear, scientists report.

3D bioprinting sheds light on why blood vessel curvature may foster brain cancer metastasis.

Researchers achieved a significant advancement in robotics by replicating human-like variable speed walking using a musculoskeletal model. This model, steered by a reflex control method akin to the human nervous system, enhances our understanding of human locomotion and sets new standards for robotic technology.

There is a difference between how the brains of healthy older adults perceive color compared to younger adults, finds a new study.

Researchers conducted a study to explore the neuroscientific basis of fairness in social situations, investigating the interplay between personal interests and societal norms. By applying electric brain stimulation to 60 participants, the researchers pinpointed specific brain regions crucial to fairness decisions.

Finally this week, scientists have made a significant discovery using an artificial neural network model, suggesting that musical instinct may emerge naturally from the human brain.

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An international team of researchers has published a digital atlas showing how the normative maturation of the fetal brain occurs between 14 – 31 weeks’ gestation, a critical developmental period.

New findings suggest that measuring changes in how pupils react to light could help predict recovery from depression and personalize transcranial magnetic stimulation (TMS) treatment of major depressive disorder.

A new study has found the influence of language on human thinking could be stronger than previously assumed. 

Scientists at Imperial College London are leading the development and testing of a new method of stimulating the brain, which could provide an alternative treatment for brain diseases such as Alzheimer’s, and its associated memory loss.

Researchers report neural signaling during online exchanges is considerably reduced compared to face-to-face conversation.

Two different regions of the brain are critical to integrating semantic information while reading, which could shed more light on why people with aphasia have difficulty with semantics, according to new research.

Finally this week, researchers in Canada have examined what type of music helps to dampen pain perception.