Articles tagged with Neural Pathways
Scientists discovered a hormonally primed cortical circuit that controls reproductive drive in female mice through oxytocin and ovarian hormones. The circuit has the opposite effect in male mice, making them less interested in mating. Researchers identified a key subset of neurons that respond to social cues and internal signals.
Researchers found that mice with weakened laterodorsal tegmentum responses exhibited reduced withdrawal symptoms and increased interactions with new objects. The interpeduncular nucleus inhibits the LDTg, suggesting a potential target for nicotine addiction treatments.
Researchers at the Salk Institute have identified a brain circuit that gives physical pain its emotional tone, revealing a potential target for treating chronic and affective pain conditions. The study found that a group of neurons in the thalamus can mediate the emotional side of pain in mice.
Researchers have successfully controlled a dexterous robotic hand using noninvasive EEG-based Brain-Computer Interfaces (BCIs) for individual finger movements. The study demonstrates real-time brain decoding and motor imagery control, paving the way for potential applications beyond basic communication to intricate motor control.
The study identifies the brain circuit controlling associations between stimuli and allows for indirect associations. The amygdala plays a crucial role in linking olfactory and taste stimuli.
Researchers at the University of Michigan propose a new theory that non-REM sleep strengthens memories, while REM prunes overlapping ones. This sequence helps reinforce relevant memories and keeps unrelated ones distinct.
Researchers at UC Davis developed a brain-computer interface that translates neural activity into speech in real time. The technology allows individuals with ALS to communicate more naturally and inclusively, with 60% of synthesized words intelligible to listeners.
Researchers have identified a specific group of neurons in the brain responsible for suppressing binge drinking behavior. The discovery may lead to new therapeutic targets for treating alcohol dependency and related health challenges.
A new brain training game has shown promise in treating nerve pain, with participants experiencing significant reductions in pain and comparable relief to opioids. The PainWaive technology uses EEG headsets to track brain activity and respond in real time, providing a potential non-invasive alternative for chronic pain management.
A study published in Neuron reveals the neural circuit underlying individual differences in visual escape habituation, a key component of emotional responses. The research identifies distinct brain pathways involved in two types of defensive behaviors, providing new insights into arousal modulation and stress adaptation.
Researchers have identified the medial prefrontal cortex (mPFC) as the basis of emotional inference in animals and humans. In a study published in Nature, Xiaowei Gu and Joshua Johansen found that rats can learn inferred emotions by associating a neutral stimulus with an unpleasant experience.
Researchers have found that psychedelic compounds can reverse a cascade involving brain-resident cells and immune cells, increasing fear behavior when chronic stress disrupts signaling. This finding represents a paradigm shift in understanding psychedelics' therapeutic potential.
Researchers identified unique biological mechanisms that cause premature aging in the brains of individuals with alcohol, opioid, and stimulant use disorders. Different substances appear to hijack the brain's natural aging rhythm through distinct molecular mechanisms, though some pathways are shared across different substance types.
A recent study used AI to discover that phosphoglycerate dehydrogenase (PHGDH) is a causal gene for spontaneous Alzheimer's disease. The researchers found that altering PHGDH expression levels can significantly impact the progression of the disease, suggesting a novel therapeutic target.
Researchers have found that mice can instinctively exhibit rescue-like behavior toward anesthetized conspecifics without prior training or external rewards. Oxytocin neurons in the paraventricular nucleus are activated when detecting distress signals, releasing OXT and coordinating emotional and motor responses.
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 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.
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.
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.
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.
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 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.