Articles tagged with Neurology
Researchers found that brain networks operate at distinct frequencies, similar to clocks ticking at different speeds. This 'temporal structure' may offer new insights into psychiatric conditions like depression and schizophrenia.
Aesthetic experience activates brain regions associated with inward contemplation and self-assessment, according to NYU researchers. The study's findings suggest that artistic appeal may be universally experienced, despite individual differences.
Researchers uncover two distinct cell types in the inferior temporal cortex that respond differently to familiar and novel objects. Excitatory neurons fire rapidly at initial encounters, while inhibitory neurons maintain activity over a wider timeframe, driving learning and reorganization.
Researchers found that the insular cortex, linked to social preferences and altruism, plays a key role in egalitarian behavior. The study provides neural support for Adam Smith's 'theory of moral sentiments' and suggests a broader view of morality as connected to environmental relationships.
A recent study found that depression is common among stroke and transient ischemic attack (TIA) patients, with nearly two-thirds of them not receiving treatment. The study suggests that brain injury and vascular risk factors may contribute to the development of depression in these patients.
Researchers from Tuebingen identified two brain areas, V3A and V6, that compare eye movements with visual signals on the retina to correctly perceive objects in motion. These areas enable us to distinguish between self-induced and external movements, allowing us to navigate our environment effectively.
Researchers found that listening to sentences with textural metaphors activates the parietal operculum, a region associated with sensing texture through touch. This suggests that our brains use sensory experiences to understand metaphorical language.
Cedars-Sinai neurology researchers present research updates at the International Stroke Conference, including the use of therapeutic cooling to reduce neurological damage after stroke. Thrombin leaks into healthy brain cells after ischemic stroke, but injecting a drug to counter its effects can improve symptoms.
Researchers recommend a stop-and-go approach to balance oxaliplatin dose with neurological side effects, maximizing effectiveness while minimizing harm. Supplements such as calcium and magnesium may mitigate drug damage, improving patient outcomes.
A study found that the human brain's ability to process information is the dominant limiting factor for exponentially growing internet data. The distribution of internet files shows a Weber-Fechner law, where the total amount of information grows slower than our ability to handle it.
A study analyzing hospitalization data in the United States found that children with neurological impairment (NI) account for a significant proportion of inpatient resources. The impact of these children is growing within children's hospitals, necessitating a coordinated approach to ensure their needs are met.
The 2011 revision of the International Standards for Neurological Classification of Spinal Cord Injury (ISNCSCI) was published to guide consistent classification of spinal cord injuries. The new guidelines improve data reliability for clinical care and research studies.
A Cedars-Sinai study reveals that a normal protein involved in blood clotting can harm healthy brain cells after an ischemic stroke. The researchers will investigate the source of this protein and its interactions with other molecules to develop new treatments for stroke patients.
A study published in Human Brain Mapping found that damaged corpus callosum and impaired interhemispheric communication hinder motor skill recovery in stroke patients. The researchers used imaging methods to show increased activity on both sides of the brain and lower tapping speed in stroke patients compared to healthy controls.
A study published in Archives of Neurology found that breast cancer survivors who received chemotherapy demonstrated reduced activation in key brain areas and poorer executive function. The researchers also discovered that negative effects of chemotherapy may be exacerbated by factors such as age and educational level.
A study published at the American Heart Association scientific sessions found that delays in therapeutic hypothermia and return of spontaneous circulation significantly worsen neurologic outcomes. Caregivers with a thorough understanding of post-cardiac arrest neurologic states can better manage patients at discharge.
Researchers used lucid dreamers to analyze brain activity during dreaming and found activation in regions relevant to movement planning. The study confirms that dreams are not passive observations but involve brain activity associated with the dream content.
A new study found that Telestroke technology provides high-quality care for rural patients, administering stroke drug tPA at the same rate as urban centers. Effective use of Telestroke resulted in a 50% decrease in emergency room transfers and $1 million in health-care savings over four years.
Researchers at Johns Hopkins Medicine found that oxaliplatin, a widely used chemotherapy drug for colorectal cancer, causes permanent nerve damage in some patients. A new study suggests using simple skin biopsies to track nerve cell degeneration and develop new treatments to prevent or slow the damage.
A literature review suggests that some stroke patients can receive treatment beyond the standard 3-hour window, with brain cells remaining structurally intact and potentially revivable if normal blood flow is restored. This finding could enable doctors to provide better patient care by considering the 'tissue window' rather than just time
Scientists have found that nanoparticles can cause brain injury in fish, leading to the formation of vacuoles and nerve cell death. The results may influence policy regulations on environmental protection and human safety.
Researchers found that babies' brain activity changes from non-specific 'neuronal bursts' to localized activity in specific areas of the brain, indicating they can perceive painful stimulation as separate from touch. This shift may occur around 35-37 weeks gestation.
Researchers found that visual processing also activates the same parts of the brain involved in touch sensations, allowing computers to accurately predict which object is being viewed. This connection enables a 'mind's touch,' where memories of tactile experiences are replayed when viewing corresponding visual images.
Flushing out antibodies in people with E. coli infection improves symptoms significantly, according to The Lancet article. Immunoadsorption technique removes circulating immunoglobulins, improving neurological and renal function recovery in patients with severe complications.
A new visual test effectively diagnosed concussions in collegiate athletes, detecting impaired eye movements and rapid eye movements. The King-Devick test, a previously used dyslexia test, was validated as a reliable tool to aid medical professionals and trainers in determining which athletes need to come out of games.
Research suggests that statin cholesterol-lowering medications can lower stroke risk in patients with ischemic strokes. However, patients with hemorrhagic strokes or certain high-risk profiles may not benefit from statins. Further research is needed to understand the optimal use of statins in these cases.
Researchers developed an effective way to pinpoint high-risk patients with asymptomatic carotid stenosis using 3-D ultrasound to identify ulcers in the carotid arteries. The study found that three or more ulcers indicated a high risk of stroke and benefited from intervention.
A new study found that people associate small numbers with short time intervals and large numbers with longer intervals, indicating a brain-wide connection. This association affects how individuals perceive time, with larger numbers leading to slower time perception.
Researchers create a chip that connects neurons with electronics, enabling them to study complex neural networks and their behavior. The device reveals patterns in bigger networks of neurons, showing hierarchical structures and suggesting new approaches for artificial intelligence and neurology.
Researchers propose a new field of microbial endocrinology linking probiotics to neurological function. Studies show that neurochemicals produced by gut microbes can influence behavior and immune response. Probiotic intestinal microbiota may deliver beneficial effects through direct uptake from the gut.
Researchers found that humans experience the Motion Aftereffect, even with brief background motion, due to neural processes in the brain. The study reveals a rapid motion adaptation that occurs every time we see moving objects, but its purpose remains unknown.
Thurston worked with Dr. Nader Sanai to create a detailed Gantt chart, compressing the project timeline from five to three years and reducing expenses. The gift agreement includes financial incentives, motivating Dr. Sanai to achieve specific goals on a quarterly basis.
Researchers developed an iPhone application that can diagnose stroke with high accuracy, using noncontrast computed tomography (NCCT) and CT angiogram head scans. The technology allows doctors to analyze images in real-time from anywhere, providing critical access to specialists.
A new study uses creative engineering to unravel brain mechanisms associated with self-consciousness, identifying the TPJ as critical for self-location and first-person perspective. The research found that brain damage interfering with multisensory body information may lead to pathological changes in these subjective states.
A Mayo Clinic case study finds Botox effective in treating disabling low cerebrospinal fluid headaches. The patient's headaches improved significantly after receiving Botox treatments, allowing her to live a more normal life.
A new approach to studying the brain uses a mathematical sequence to strengthen fMRI data, revealing how nerve cells represent information. This method measures changes in brain responses and corrects an important limitation of fMRI, making it more powerful than before.
A study by researchers at New York University found overlapping neurological mechanisms between goal-directed actions and habitual behaviors. The findings suggest that the brain's systems for different behaviors are more intertwined than previously thought, paving the way for addressing addiction and similar maladies.
A new clinical prediction rule has been developed to predict a patient's chances of walking independently after a spinal cord injury, with accuracy exceeding 95%. The model uses a combination of age and four neurological test results, providing a simple yet effective tool for physicians to counsel patients and their families.
Mayo Clinic researchers confirmed that patients who receive therapeutic hypothermia after resuscitation from cardiac arrest have favorable chances of surviving the event. High NSE levels in the blood were shown to predict poor outcomes in non-hypothermia cases, but elevated levels also occurred in some patients who recovered well.
Researchers found a significant increase in street drug use among stroke patients, from 0.5% to 4.6% between 1993 and 2005. The study, funded by the National Institutes of Health, suggests that street drug use may be contributing to rising stroke incidence among younger age groups.
A new CPR technique has been shown to increase long-term survival after cardiac arrest, with a 53% improvement in survival rates compared to standard CPR. The active compression-decompression cardio-pulmonary resuscitation (CPR) method provides nearly three times more blood flow to the heart and brain.
New studies from researchers at the University of Cincinnati show that certain measurement tools for assessing non-clinical work intensity can also be used to determine physician work intensity in clinical settings. This could lead to improved health care delivery, increased efficiency, and higher quality of care.
Scientists at Caltech have identified a delicate balance in the brain that controls fear output from the amygdala. Two neural subtypes act like a seesaw to regulate fear levels, with PKCδ+ neurons forming one end and inhibiting outflow from the region.
A study published in Archives of Neurology found that stroke patients who show improvement within one hour of receiving rt-PA are more likely to have a favorable outcome three months later. Researchers followed 120 patients and found that 68.2% had a favorable outcome, compared to 29.6% for those who did not show early improvement.
Research suggests that patients with stroke experiencing improvement within one hour of receiving clot-dissolving medication are more likely to have favorable outcomes three months later. This improvement is associated with reduced risk of death and better recovery rates.
A new anticoagulant drug dabigatran has been found to be equally effective as warfarin in preventing stroke in patients who have previously had a stroke or transient ischaemic attack. The study also showed that dabigatran has a lower risk of intracranial bleeding compared to warfarin.
Researchers found that brains of congenitally blind individuals showed greater reorganization of the visual cortex, which processes motion, compared to sighted individuals who became blind at a later age. This suggests that early life plays a crucial role in shaping brain function and that retraining may be possible.
A University of Louisville researcher has received a three-year grant to explore how the nervous system grows and develops. The study aims to identify genes involved in dendritic growth using animal models.
Researchers found that people retain memories more effectively when their brain activity is similar each time they study the same information. This challenges the long-held belief that variable contexts enhance memory retention. The findings provide new insights into effective studying and cognitive processing.
EMBL scientists uncover counterpart of cerebral cortex in marine worm Platynereis dumerilii, a relative of the earthworm. The finding suggests that the pallium is much older than previously thought and likely evolved as an adaptation to early marine life.
Health risks from Gulf Coast oil spill include toxic vapors, oil slicks, tar balls, and contaminated seafood posing respiratory problems, skin irritation, mental health concerns, and neurological impairment. The risk factors are improving as the oil leak has been stopped.
A recent study found that East Asian cultures process information differently than Western cultures, with differences in attention, categorization, and reasoning. Aging has a greater impact on cognitive processes than culture.
Researchers found differing responses for neutral observers, those who wished the player to fail, and those who wanted to see them succeed. The study used event-related potentials to measure brain activity in response to different game scenarios.
Researchers found that the human neck played a crucial role in the evolution of the human brain by enabling improved movement and dexterity in terrestrial and aerial environments. This innovation allowed for a wide range of forelimb abilities, from flying to swimming and playing piano.
Researchers used brain potentials to study the influence of context on letter recognition. The study found that linguistic context impacts access to single abstract representations, which are partially independent from physical properties. This suggests a complex processing mechanism for word recognition.
Researchers have developed a new drug that targets peripheral CB1R, reducing glucose and fat levels in the blood without causing weight loss or neurological side effects. This approach aims to reduce health risks associated with obesity, but caution is needed to ensure the drug does not access the brain.
A study found that the human brain regions growing during infancy and childhood are similar to those with the most changes when comparing humans to apes and monkeys. This research helps assess adverse effects of premature birth on brain development, including increased risks of learning disabilities and cognitive impairments.
A study found that soccer experts made more foul calls when action moved right-to-left compared to left-to-right, suggesting a bias in refereeing. Researchers suggest that referees should avoid switching diagonals at halftime to prevent unfair advantages.
A recent study by UCL scientists found that the brain is intrinsically unreliable due to high levels of noise. The researchers proposed a rate code strategy as a possible solution to this problem.
Research by scientists at Rockefeller University shows that adult brain circuits continually modify themselves in response to experience. After removing a mouse's whisker, excitatory connections rapidly sprout and inhibit networks adjust to maintain balance between excitation and inhibition.