Articles tagged with Neural Pathways
MIT researchers have found that a computational model of the ventral stream, which processes object recognition, also performs well on spatial tasks such as determining an object's location and orientation. This challenges the dominant perspective that the ventral stream is optimized for object recognition.
Researchers are investigating the role of five-carbon metabolism in the human body, which could impact long-term health. Baccile's lab is developing functional derivatives of molecules involved in this pathway, aiming to discover their underlying purpose.
Researchers successfully assembled a miniaturized human nervous system to reconstitute the ascending sensory pathway, which transmits sensations from the skin to the brain. The new construct promises to accelerate understanding and treatment of chronic pain by allowing for non-invasive modeling and manipulation of the pain pathway.
Researchers found that mouse brains process active and passive touch through different pathways, with one region responding to surprise at touch. This distinction may help mice navigate their environments more effectively.
A new study published in Brain Medicine found that administering Osanetant shortly after a traumatic event significantly dampens fear expression in female mice. This suggests that targeting fear memory at its roots may be an effective intervention to reduce PTSD-like behaviors.
A research team has uncovered a fundamental brain circuit that distinguishes between direct and vicarious fear, with the locus coeruleus playing a crucial role in processing fear. The study reveals a lateralized LC-NAergic system that separates personal from socially learned fear, shedding light on empathy and social learning.
Researchers discovered that dopamine levels in a specific brain region are closely linked to male sexual behavior transitions. The study found rhythmic dopamine input during intromission was regulated by acetylcholine innervation, directly triggering ejaculation.
Researchers found that changes in gut bacteria after a stroke lead to an increase in harmful substances and a decrease in beneficial ones, potentially causing inflammation. Restoring these beneficial substances from gut bacteria could help reduce inflammation after a stroke.
This study found that electroacupuncture (EA) improved gastric emptying in rats with burn-induced dysmotility by down-regulating cyclooxygenase-2 (COX-2) and pro-inflammatory cytokines. EA also normalized sympathetic hyperactivity and enhanced vagal activity, suggesting a potential therapeutic benefit for burn-induced gastric dysmotility.
A study by Dr. Keum Sehoon's team identified key neural ensembles in the anterior cingulate cortex that encode empathic freezing, a behavioral response to witnessing distress in others. The researchers found that observing another's pain triggers activation in the ACC as if the observer were experiencing pain themselves.
Researchers discovered distinct neuronal populations in the ACC process pain and itch information separately, with stimulus-specific neurons receiving differentiated synaptic inputs from the mediodorsal thalamus. Suppressing these neurons reduced corresponding sensations without affecting the other.
Researchers discovered a common cognitive feedback loop used by Buddhist jhāna meditation and Christian speaking in tongues practices to achieve profound focus and joy. This 'Attention, Arousal and Release Spiral' offers insights into cultivating deep states of tranquility and bliss.
Researchers are testing noninvasive electrical stimulation of the spinal cord to treat major depressive disorder. The trial, funded by the National Institute of Mental Health, aims to confirm whether this method reduces signaling in specific pathways related to depression.
Scientists at NUS Medicine have developed a novel approach using nasal bacteria to deliver therapeutic molecules directly to the brain, reducing appetite and improving glucose metabolism in preclinical studies. The engineered bacteria leverage the olfactory mucosa's unique properties to deliver medication with enhanced bioavailability.
A group of nerve cells called POMC neurons are responsible for dessert cravings, releasing a feel-good opiate when mice eat sugar. This pathway is activated even before eating, and blocking it reduces sugar consumption in full animals.
Researchers identified a link between Alzheimer's disease, cell function, and cholesterol in the brain. Lowering oxysterol levels freed trapped ABCA1, restoring its healthy state, and showed potential as a new treatment approach.
Researchers at ISTA identify a brain region in mice that predicts and minimizes visual distortion during movement, allowing for sharper mental images. The 'ventral lateral geniculate nucleus' (vLGN) integrates motor and sensory signals to compute a comprehensive corrective signal, enabling more efficient visual processing.
Research reveals that even short-term exposure to high levels of particulate matter air pollution impairs cognitive functions such as selective attention and emotion recognition. This study highlights the urgent need for stricter air quality regulations and public health measures to combat the harmful effects of pollution on brain health.
UVA researchers analyzed 300 blood serum samples from babies who died from SIDS and identified specific biological indicators linked to their deaths. The study found 35 predictors of SIDS, including ornithine and a lipid metabolite critical for brain and lung health.
The new model, based on a PV-RNN framework, achieves compositionality by combining language with vision, proprioception, working memory, and attention. It requires less computing power than large language models (LLMs) and makes mistakes similar to humans.
The Advanced Research + Invention Agency has awarded $84.2 million to Rice researchers to explore and unlock new methods for interfacing with the human brain at the circuit level. The project involves developing a distributed network of minimally invasive implants to stimulate neural circuits with cell-type precision.
A team of researchers at Georgia State University has identified a novel group of neurons controlling the brain-heart-gut axis that can be activated to induce a hypometabolic state resembling hibernation. This discovery could have wide-ranging impacts on scientific fields, including obesity and cardiometabolic health.
Researchers have constructed a comprehensive map of synaptic connections between clock neurons in Drosophila, identifying novel neurons and connections that influence feeding, mating, and sleep behaviors. The study also reveals the role of light input pathways and neurotransmitters in regulating clock neuron function.
Two studies reveal complex and flexible visual information processing in the brain's cortex and thalamus. Researchers identified pathways that selectively channel visual signals to targeted areas or broadcast information broadly across multiple regions.
A randomized clinical study found that an opioid-free treatment pathway is both safe and effective for bariatric surgery patients. The alternative method, which combines three different medicines, significantly reduces the need for opioids during treatment.
The partnership integrates Answer ALS’s Neuromine Data Portal with the AD Data Initiative's AD Workbench, providing a unified platform for data sharing and analysis. This collaboration enables integrative analysis of ALS and Alzheimer’s data, streamlining efforts and enhancing research impact.
Researchers found a parallel pathway to long-term memory formation that bypasses short-term memory. Blocking short-term memory did not disrupt long-term memory retention.
Researchers from Juntendo University discovered a four-step neural pathway involved in response inhibition, involving visual processing, sensory integration, action control, and execution of inhibition. The study aims to develop targeted therapeutic strategies for conditions like ADHD and obsessive-compulsive disorder.
Leila Nabulsi is expanding her research program to pinpoint brain pathways affected by bipolar disorder. She will leverage the ENIGMA consortium and advanced statistical methods to build a database of brain changes, potentially improving diagnosis and treatment.
New research highlights additional therapies being tested for hypoxic-ischemic encephalopathy (HIE) in newborns, including agents blocking glutamate receptor activation and antioxidant drugs. While therapeutic hypothermia is effective in high-income countries, its efficacy is uncertain in low- and middle-income nations.
A USTC team led by Researcher LIU Ji unveiled an adrenal-independent pathway, the hypothalamus-sympathetic-liver (HSL) axis, to mediate stress-induced glucose release. This new pathway regulates glucose homeostasis and provides potential therapeutic targets for stress-related metabolic disorders.
Researchers found that female mouse models of Rett syndrome have a mosaic-like distribution of cells expressing wild-type and mutant MeCP2 protein, leading to dysregulated genes. The study also discovered an unusual disease progression, with females having more dysregulated genes at the pre-symptomatic stage than later on.
Researchers from the FlyWire Consortium have created a detailed wiring diagram of every neuron in the adult fly brain, revealing substantial similarities between individual brains. The map includes 50 million connections between neurons, providing insights into neural circuits and their functions.
Researchers found that combining APOE4 and TREM2 variants triggers inflammatory response in female brains, damaging brain regions involved in thinking and memory. This study emphasizes the need for tailored approaches to treat Alzheimer's disease differently in men and women.
Researchers at Fujita Health University have discovered critical impairments in purine metabolism and ATP recycling in patients with Parkinson's disease. The study highlights the importance of enhancing ATP production to slow disease progression and improve quality of life.
Researchers at Texas A&M University have developed a method to recharge cellular mitochondria using nanotechnology, potentially extending healthy lifespans and improving outcomes for patients with age-related diseases. The molybdenum disulfide nanoparticles stimulate mitochondrial regeneration, helping cells generate more energy.
A pioneering study identified critical biomarkers that can predict disability worsening in MS. Elevated serum neurofilament light chain and serum glial fibrillary acidic protein levels correlate with progression independent of relapse activity, guiding personalized treatment approaches.
Researchers at UCSF have identified a molecular pathway that controls the formation of scar tissue in spinal cord injuries. By activating this pathway, they were able to reduce scarring and promote healing in mice with spinal cord injuries.
A UCLA-led research team has identified degeneration-associated molecular markers shared by several forms of dementia. The study also found cell type-specific changes that underlie each condition, highlighting potential new therapeutic targets.
Researchers have identified a specific immune cell type and signaling pathway that leads to itching in people with allergies. By targeting this pathway, they hope to develop novel therapeutics for preventing allergic responses and sensitization.
Researchers have found a new brain mechanism that detects prediction errors between expected and actual sensory inputs, boosting responses to unexpected information. This discovery could offer insights into the neural circuits underlying autism spectrum disorders (ASDs) and schizophrenia spectrum disorders (SSDs).
A study in Current Biology mapped a brain circuit responsible for detecting threats and forming fear memories. The hippocampus and subiculum are key structures involved, with the subiculum transferring information to the hypothalamus.
A study published in Neuron reveals that neurons are wired to connect seemingly unrelated concepts, enhancing the brain's ability to predict what we see based on past experiences. Visual experience influences the organisation of feedback projections, which store information about the world.
Researchers study T cells and monocytes interaction in the meninges before they attack the brain and spinal cord, potentially leading to new disease progression targets. The findings could provide a pathway to treating other neurological diseases like Alzheimer's and Parkinson's.
A recent study has identified a blood protein called fibrin as the root cause of developmental delays and brain damage in preterm infants. The researchers found that fibrin interferes with a cell-signaling pathway essential for neuron creation, particularly in the cerebellum.
Researchers at UNC School of Medicine discover a key brain pathway linking the cingulate cortex to cerebellum that's crucial for placebo analgesia. The study reveals neurons and synapses along this pathway are highly activated when mice expect pain relief, paving the way for potential new treatments
Scientists successfully mapped transcriptomes from 1.3 million brain cortex cells to gain molecular insights into Alzheimer's vulnerability and resilience. The resulting atlas holds promise for gene and molecular discovery across pathways affecting brain health.
A recent study at the University of Missouri discovered that oxytocin and corticotropin-releasing hormone cause the brainstem to become overactive, leading to hypertension. This finding can help develop targeted drugs to reduce high blood pressure in sleep apnea patients.
A new study found that claustrum neurons regulate engagement with sensory information during tasks and sleep. Increased activity in these neurons reduces impulsivity and improves performance.
Researchers characterize thalamic and cortical neurons responding to ocular surface stimulation, showing diverse multimodal response profiles. The study provides insights into how sensory stimulus information is integrated from the peripheral nervous system into the brain's cortical networks.
A ketogenic diet has been shown to improve memory and healthspan in aging mice by activating a critical signaling pathway. The study found that the main ketone body produced during a ketogenic diet, BHB, plays a crucial role in activating this pathway.
Research finds that Huntington’s disease damages microscopic blood vessels in the brain, affecting coordination between neuronal activity and oxygenation. The study uses non-invasive measurement techniques to monitor disease progression and evaluate potential treatments.
Researchers found that repetitive practice leads to changes in working memory circuits, making them more stable and refined. The study's findings have implications for addressing memory-related disorders.
A new study reveals that neural activity related to sound detection and movement are temporally separated but share commonalities, with neurons adapting their activity based on experience. The findings shed light on the brain's complex processing of sensory information and behavioral choices.
Researchers found a significant association between neighborhood deprivation and DNA methylation in brain tissue, which may be linked to immune response. The study identified one CpG site (cg26514961, PLXNC1 gene) significantly associated with neighborhood deprivation after controlling for covariates.
Researchers at UC Riverside identify NMD pathway as crucial for early brain development and preventing microcephaly. The study links NMD regulation of brain size control to the tumor suppressor gene p53, suggesting potential new connections between NMD and cancer.
Researchers at RIKEN Center for Brain Science discovered neural circuitry in the spinal cord that enables brain-independent motor learning and recall. The study found two critical groups of neurons: one necessary for new adaptive learning and another for recalling adaptations once learned.
Researchers at The University of Tokyo successfully connected lab-grown brain-mimicking tissue using axonal bundles, mimicking natural brain connections. This breakthrough enables the study of complex brain networks and their role in various neurological and psychiatric conditions.
A team of researchers from Tokyo Institute of Technology identified the molecular mechanisms involved in synaptic communication using Drosophila. They found that Side-IV/Beat-IIb immunoglobulin superfamily protein molecules play a crucial role in inducing synapse formation and regulating preferential signaling among neuron pairs.
Researchers discovered that mature oligodendrocytes, critical for brain function, can survive for up to 45 days after a fatal trauma, defying the classical programmed cell-death pathway. This finding opens new avenues for understanding and potentially preventing damage caused by aging and neurodegenerative diseases.