Articles tagged with Cognition
Neurons exhibit 'mixed selectivity,' integrating multiple inputs and computations, ensuring focused cognition. The brain employs mechanisms like oscillations and neuromodulators to recruit neurons and tune them to relevant information.
A new study assesses cognitive impairment over time in adults with essential tremor, finding a cumulative prevalence of 26.6% for mild cognitive impairment (MCI) and 18.5% for dementia. Early detection is crucial to slow further cognitive decline and improve quality of life.
Beta bursts regulate neuron activity to implement cognitive control, enabling flexible but controlled patterns of neural activity for intentional thought. Studying these bursts could aid in diagnosing and treating cognitive disorders, including ADHD, schizophrenia, and Alzheimer's disease.
The study suggests that understanding brain rhythms is critical for developing effective treatments for neurological disorders like schizophrenia, epilepsy, and Parkinson's. Cognition emerges from the coordinated activity of millions of neurons via electric fields, known as brain waves or rhythms.
A team of researchers from the University of Rochester used adaptive optics to identify rare retinal ganglion cells that could help explain how humans perceive color. These non-cardinal RGCs may work in tandem with cardinal RGCs to create more complex color perceptions.
Lehigh University researcher A. Emrah Bayrak explores best practices for human-AI collaboration in complex design tasks, aiming to maximize productivity and job satisfaction. His project uses models that predict human decision-making and combines it with AI's training data analysis to determine strategies for division of labor.
The study reveals that smartphone-based cognitive assessments can provide reliable and valid results for diagnosing frontotemporal lobar degeneration. These findings suggest a scalable solution for remote evaluations, which may enhance early detection.
A new study found that a viral infection can cause cognitive impairments by damaging the blood-brain barrier, leading to memory loss and learning difficulties. Researchers developed a gene therapy that stimulated the Wnt/beta-catenin pathway to prevent this damage and improve cognitive function in mice infected with SARS-CoV-2.
A study of 303 early childhood children found concussion associated with more postconcussive symptoms than typical development up to three months after injury. The study used developmentally appropriate manifestations and behaviors to track postconcussive symptoms and aid in concussion diagnosis in young children.
Researchers analyzed over 150 studies involving more than 10,000 participants to find that lowering physiological arousal is key to managing anger. Arousal-decreasing activities such as deep breathing, mindfulness, and meditation were effective in reducing anger, while activities increasing arousal like jogging had no effect.
Researchers have solved the long-standing question of what triggers the alarm response in fish by identifying two distinct chemical signals: Daniol sulphate and Ostariopterin. These substances convey separate pieces of information that must be detected simultaneously to trigger a flight-or-freeze response.
The Federation of European Neuroscience Societies is open to media registration for its 2024 event. Journalists can access the latest research discoveries in neuroscience fields such as dementia, addiction and depression.
A new study published in JAMA Dermatology reveals that children with atopic dermatitis are more likely to experience difficulties in learning and memory. The research suggests that neurodevelopmental comorbidities such as ADHD or learning disabilities may play a key role in this association.
A genome-wide meta-analysis study found that early vocabulary size is genetically linked to ADHD, literacy and cognitive abilities in children. The study used data from over 17,000 English-, Danish- or Dutch-speaking children and identified multiple genetic factors underlying vocabulary size in infancy and toddlerhood.
High levels of air pollution have a significant negative impact on teams' ability to solve complex problems, such as developing clean energy technologies and vaccines. The study used escape-room games data to estimate that high-pollution days can lead to up to 5% longer completion times for teams.
A study published in British Journal of Psychology found that regular gamers performed better on tasks measuring cognitive functions such as attention and memory. They were able to complete number-letter tasks and maze activities faster than non-gamers, with no significant difference in cognitive fatigue experienced.
A study by the Universities of Göttingen and Bonn found that reducing effort required to opt out of nudged options and increasing transparency of the nudge significantly improved public support for these interventions. The perception of upholding free choice and effectiveness were key drivers of acceptance.
A survey study of U.S. adults found that post–COVID-19 condition is associated with greater self-reported functional impairment and depressive symptom severity. Cognitive symptoms are common among individuals with post–COVID-19 condition, impacting daily life.
A study of 11,000 children found that maternal tobacco use during pregnancy is associated with enduring deficits in childhood neurocognition. Continued research on the link between maternal tobacco use and cognitive performance is needed.
Researchers found that bariatric surgery led to improved cognition and overall well-being two years after the procedure. The study revealed changes in blood vessel efficiency and cortical thickness of the temporal cortex, offering new treatment options for patients with obesity and dementia.
A new study suggests that instrumental lies and white lies told by parents can encourage children to lie, with the effect seen only when children know they have been lied to. This finding highlights a need to understand the relation between parental lying and children's outcomes.
A healthy lifestyle can help maintain cognitive abilities in older adults with common neuropathologies of dementia. The study found that a balanced lifestyle provides cognitive reserve, protecting against cognitive decline.
A systematic review and meta-analysis of 104 studies with 341,000 participants found that physical activity was associated with better late-life cognition, although the association was weak. The findings suggest that even a weak link between physical activity and cognitive decline is still important from a population health perspective.
The Cognitive Neuroscience Society Conference in Toronto will explore the nature of thought and cognition. Registered press members will have access to scientific talks, posters, and receptions.
Researchers found that cognition scores remained stable two years after bariatric surgery, while secondary executive function tests showed improvement. However, one memory assessment declined following surgery. Further studies are needed to confirm the findings and understand how best to treat cognitive decline associated with obesity.
Researchers examine the dynamic nature of fear responses in varied environments, shedding light on physical manifestation of memory in the brain. The study reveals that fear memories are linked to pathological states like PTSD and generalized anxiety, with direct translational relevance for disorders involving dysregulated fear responses.
A study of 8,000 participants found that negative wealth shock was associated with accelerated cognitive decline and elevated risks of dementia among middle-aged and older U.S. adults. The findings suggest a potential link between financial hardship and cognitive aging.
A recent study of over 7,900 participants found that pet ownership was associated with slower rates of verbal memory and fluency decline among older adults living alone. This suggests that pet ownership may offset the negative effects of social isolation on cognitive health.
Researchers at NTU Singapore found that indoor air quality can affect creativity, with volatile organic compounds (VOCs) released from products like detergents and perfumes affecting participants' ability to build 3D models. By reducing TVOC levels by 72%, creative potential can be improved by 12%.
A study evaluated sleep tracking performance of various wearable devices against a reference system, considering user needs. Non-EEG wearables showed superior performance for healthy individuals who want to monitor sleep habits.
A study from the University of Ottawa found that sleep deprivation significantly impacts decision-making processes, reducing neural responses to winning and losing outcomes. This can lead to diminished positive emotions in response to winning and negative emotions when faced with losses.
A breakthrough study found that light exercise can improve cognitive health in adults with Down syndrome, leading to improved information processing and attention. After just eight weeks of walking, participants showed significant increases in physical fitness and reductions in errors during cognitive assessments.
Researchers found that newborn babies can perceive a beat in music due to an innate cognitive mechanism active at birth. The study used EEG measurements and manipulated drum rhythms to distinguish between learning the order of sounds and recognizing a beat.
A review of 23 years of neuroimaging research finds that screen time affects the pre-frontal cortex and other brain regions involved in executive functions, memory, and processing. Digital experiences may shape children's brains and influence cognitive development, with both positive and negative impacts.
Pandemic-exposed preschool children demonstrated improved problem-solving skills, fine motor abilities, and vocabulary at 2-5 years old compared to non-exposed peers. They also showed enhanced cognitive performance in visual memory and overall cognitive abilities.
A new study on visual masking reveals the brain's role in perception and points to a region necessary for conscious awareness. The research shows that unconscious sensation can turn into conscious perception in the brain, with implications for understanding visual awareness.
A recent study published in Scandinavian Journal of Medicine and Science in Sports found that physical fitness since childhood is associated with increased cerebellar grey matter volume in adolescents. Those with better neuromuscular fitness had larger Crus I grey matter volume, while those with cardiorespiratory fitness had smaller to...
In a groundbreaking study, researchers found that chimpanzees climb hills near territory borders to gather information about rival groups and reduce the risk of encounters. This behavior suggests complex cognitive abilities and tactical use of landscape features in conflict with neighbors.
A study of 74 children in rural Ethiopian villages found that higher exposure to fluoride was linked to more errors on drawing and memory tests. The results suggest a potential association between high fluoride levels and cognitive impairment, particularly during early brain development and childhood.
A study by University of Nebraska-Lincoln researchers found that crowdfunding platforms create a sense of democracy, but backers often come from similar groups and give to projects they find cool. This limits the democratizing potential of crowdfunding.
A study of 2,361 mother-child pairs found that prenatal lead exposure is associated with an increased risk of cognitive developmental delay (CDD) in children, particularly those with a high genetic risk. This suggests that integrating genetic factors into assessments of CDD risk may improve children's cognitive ability.
A recent study found that a reimagined financial content structure improved consumer appreciation, particularly with clarity, organization and formatting. The new structure incorporated language improvements, explanatory videos, and hyperlinks, leading to higher levels of consumer appreciation compared to the existing structure.
A recent study published in Nature Medicine suggests that complement proteins and microglia can be activated early in the development of Huntington's Disease, leading to synapse loss and cognitive decline. By blocking these proteins, researchers were able to prevent or slow cognitive defects and motor symptoms in animal models.
Researchers discovered that monk parakeets possess a unique tone of voice, known as a voice print, similar to humans. This finding raises the possibility that other vocally flexible species may also have a voice print.
A new study resolves a long-standing contradiction in brain function by revealing that familiar stimuli trigger brief neural spikes, known as visually evoked potentials (VEPs), which suppress activity. The findings advance understanding of visual recognition memory, enabling prioritization of attention.
A study of 1,500 participants found that certain brain regions, including the hippocampus, exhibit stronger activation in individuals with better memory performance. The researchers identified functional networks in the brain linked to memory performance, shedding light on individual differences in memory recall.
Caribbean box jellyfish have demonstrated complex learning capabilities, including associative learning and memory formation, despite having only one thousand nerve cells. This discovery sheds new light on the evolutionary success of jellyfish and raises questions about the universality of advanced learning mechanisms in animals.
Microglial cells age differently in male and female mice, with female microglia displaying a 'middle-aged' phenotype and male microglia switching suddenly to an aged phenotype. The researchers identified key genes and mechanisms contributing to this aging process, including the role of aged-like microglia in cognitive decline.
In a new study, researchers deciphered mice's behavior during reward-based learning tasks, finding they persistently blend multiple strategies. The findings suggest mice do not fully adopt optimal approaches, and their ability to shift between strategies is crucial for understanding their decision-making process.
The study found a correlation between the emergence of sophisticated stone-knapping methods and a relative decrease in large prey quantities. Stone-tipped spears with Levallois technology allowed for more substantial wounds, increasing hunting success.
A new study by Uppsala University researchers reveals a significant difference in vaccination rates among people with varying cognitive abilities. Among those with the highest cognitive ability, 80% were vaccinated within 50 days, while it took 180 days for those with the lowest cognitive ability to reach the same rate.
Researchers found that childhood adversity can reshape an individual's moral development, leading to a 'deformative experience' that pulls them away from their true nature. This asymmetric sensitivity to life history information affects judgments of praise and blame.
A new study by UC San Diego researchers shows that time-restricted feeding can improve memory and reduce amyloid protein accumulation in mice with Alzheimer's disease. This approach may provide a simple and accessible way to correct circadian disruptions, which are the leading cause of nursing home placement.
Researchers at UC San Diego demonstrate that hematopoietic stem cell transplants can protect against multiple signs and symptoms of Alzheimer's in a mouse model of the disease. The therapy leads to enhanced microglia health, which protects against Alzheimer's pathology, including β-amyloid build-up and neuroinflammation.
Researchers found that taking probiotic Lactobacillus rhamnosus GG improved cognitive scores in participants with mild cognitive impairment, suggesting a potential strategy to support cognitive health. Gut microbiome composition could serve as an early indicator for mild cognitive impairment.
The MIND diet, which combines Mediterranean and DASH principles, was positively linked with attentional inhibition in school-aged children. The diet's emphasis on brain-healthy foods like leafy greens, berries, and legumes may help improve cognitive development.
Researchers found that a combination of exercise and cognitive training significantly improved cognition in adults with mild cognitive impairment. Vitamin D supplementation had no impact on cognitive function.
Researchers investigated the effects of meditation training and non-native language training on cognition in older adults. Despite initial expectations, these interventions failed to demonstrate salutary cognitive effects, casting doubt on their potential as a preventative measure for aging-related decline.
Hypnosis expert Steven Jay Lynn challenges common misconceptions about the practice, highlighting its clinical applications and effectiveness. Research reveals that hypnotized individuals can resist suggestions, retain voluntary control, and even exhibit brain activity consistent with reported experiences.
New research shows that electric fields drive neural activity and coordinate memory across two key brain regions. The findings could lead to improved brain-controlled prosthetics for people with paralysis.