Articles tagged with Memory Disorders
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 ketogenic diet significantly delays early stages of Alzheimer's-related memory loss in mice, according to a new study published in Communications Biology. The molecule beta-hydroxybutyrate (BHB) is found to play a pivotal role in preventing this decline, improving synaptic function and memory formation.
Aging brains exhibit reduced selectivity for both category and individual items, suggesting multiple mechanisms drive age-related neural dedifferentiation. This finding may lead to a reevaluation of age-related neural processes and their relationship with memory performance.
A recent study by Boston Children's Hospital researchers found that activity in the dentate gyrus helps keep us focused on our environment when our mind wanders. This neural activity also aids in forming memories.
Researchers used single-cell RNA sequencing to analyze the effects of APC treatment on AD transgenic mice, revealing alterations in glial cells and upregulated genes associated with AD progression. APC treatment downregulates inflammatory processes and recovers nervous system functions.
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 preliminary study released by the American Academy of Neurology found a positive association between sleep apnea symptoms and memory or thinking problems. Participants who reported sleep apnea symptoms were about 50% more likely to also report having memory or thinking problems compared to those without sleep apnea symptoms.
Research suggests that magnetite particles, found in air pollution, can induce signs and symptoms of Alzheimer's disease. The study exposed mice to fine particles of iron, magnetite, and diesel hydrocarbons, finding that magnetite induced Alzheimer's disease pathologies, including neuronal cell loss and amyloid plaque formation.
Researchers found that individuals with mild cognitive impairment (aMCI) struggle with ambiguous sentences, indicating a key deficit in processing complex language. This deficit is independent of memory loss and may serve as an additional 'cognitive biomarker' for early detection.
Researchers found that the SYNGAP1 gene has a dual function in regulating synapses and synaptic plasticity, which may lead to new treatments for children with SYNGAP1 mutations. The study suggests that targeting just one aspect of SynGAP's function is not enough to have a significant impact.
A new study suggests that walking through historically Black neighborhoods while reminiscing can improve cognitive function and mood in older Black adults. The program, known as SHARP, combines exercise, social connection, and active reminiscence to make a cumulative impact on health.
A meta-analysis of 30 studies involving 3,501 women found that cognitive behavioural therapy (CBT) and mindfulness-based interventions significantly improved anxiety, depression, memory, and concentration difficulties. CBT was also the most cost-effective option for menopause management.
A UCLA Health study suggests Kundalini yoga can improve cognitive function, memory and brain health for postmenopausal women. The study found that yoga prevented brain matter decline, reversed aging and inflammation-associated biomarkers – improvements not seen in a group who received standard memory training exercises.
A new brain stimulation technique called Patterned Low-Intensity Low-Frequency Ultrasound (LILFUS) has been developed by researchers at the Institute for Basic Science. This non-invasive method uses ultrasound to induce long-lasting changes in brain function and has shown promise in treating various neurological disorders.
A team of scientists has successfully used a neural prosthetic device to recall specific memories in adults with epilepsy. The device uses a person's own memory patterns to facilitate the brain's ability to encode and recall memory, showing promise for cognitive enhancement technologies.
Researchers connected cognitive and behavioral symptoms to protein buildup in the brain marking the disease. The study showed a clear relationship between CTE pathology and severity of cognitive and functional symptoms during life.
Researchers have identified the molecular mechanism behind memory creation and found that saturated fatty acids interact with a protein called STXBP1. This interaction coordinates the release of fatty acids and directs communication at synapses in the brain.
A new therapy called NIDUS-Family has shown promising results in improving the lives of people with dementia and their family carers. The study found that those who received the intervention were more likely to achieve their personal goals, such as increasing social engagement or improving caregiver support.
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.
People with polycystic ovary syndrome may experience lower memory and thinking skills, as well as subtle brain changes at midlife. Researchers found an association between the condition and cognitive decline, but additional research is needed to confirm these findings.
Researchers have discovered a new function for the protein RPT6, which helps form memories. RPT6 binds to DNA and increases gene expression during memory formation, playing a dual role in memory processing.
Researchers found that 94% of patients with posterior cortical atrophy had Alzheimer's pathology, while only 70% of those with memory loss did. Early identification of PCA may lead to better treatment options for Alzheimer's patients.
A NTU Singapore study found that ageing alters brain cells' communication, leading to weakening connections and poorer memory in middle-aged mice. The research suggests strengthening these connections through memory training may delay age-related working memory decline.
A meta-analysis of 5,000 participants found that daily multivitamins showed benefits for memory and global cognition. The study suggests that taking a daily multivitamin can help prevent memory loss and slow down cognitive aging by the equivalent of two years compared to placebo.
Researchers found that brain waves are slower in deep cortical layers and faster in superficial layers, with gamma waves dominating the topmost layers. These oscillations may play a fundamental role in brain function and contribute to disorders such as attention deficit hyperactivity disorder.
Researchers at Northwestern University have discovered that toxic short RNAs contribute to neuron death and DNA damage in Alzheimer's disease. Studies found that older individuals with superior memories have higher amounts of protective short RNA strands in their brains.
Researchers found that traumatic memories immediately following a distressing event are more memorable than the moments leading up to it. This discovery has implications for eyewitness testimonies, therapies for PTSD, and understanding memory decline in brain disorders like Alzheimer's disease.
Researchers at Georgetown University Medical Center found that amnesia following head injury is due to inadequate reactivation of neurons involved in forming memories. They were able to reverse the amnesia in mice using lasers, potentially allowing cognitive impairment caused by head impact to be clinically reversed.
Researchers develop nanoparticles that selectively bind to activated astrocytes and microglia cells in the hippocampus of Alzheimer's patients, demonstrating increased nanoparticle transport across the blood brain barrier with age. The study provides valuable insights into advancing nanoparticle-based drug delivery for treating neurode...
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.
Researchers investigated the neural mechanisms of verbal working memory processing in healthy aging adults using magnetoencephalography. Age-related increases in theta activity were detected during encoding, and alpha and beta oscillations were stronger in older participants during maintenance and retrieval phases.
A study by Mass General Brigham found that daily learning tests can detect Alzheimer's disease-related changes in memory among cognitively normal older adults. The test, called BRANCH, was completed over seven days on a smartphone, revealing diminished learning curves associated with elevated amyloid levels.
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.
A recent study published in NeuroImage found that physically active individuals experienced less decline in entorhinal cortex thickness over a seven-year period. Cognitive reserve is also boosted through regular mental stimulation, suggesting that brains can be trained like muscles to counteract age-related decline.
A two-week yoga nidra intervention increased sleep efficiency and percentage of delta-waves in deep sleep, leading to improved cognitive abilities such as decision-making and abstraction. Cognitive tests revealed faster responses with no loss in accuracy.
Researchers found lower levels of serotonin transporter and higher levels of amyloid-beta protein in brains of people with mild cognitive impairment, a potential target for treatments to slow or stop disease progression. Further research is needed to study the role of serotonin in disease progression.
Researchers found high levels of a repair protein in the brains of former NFL athletes up to 12 years after they stopped playing, indicating persistent brain inflammation and long-term cognitive problems. The study suggests that repeated collision sports like football may have a direct link to long-term inflammation in the brain.
A study published in Neurology found that eating more whole grains is associated with a slower rate of memory decline in Black people. Researchers analyzed data from over 3,300 participants and found that those who consumed the most whole grains had lower levels of memory decline compared to those who ate fewer whole grain foods.
A recent study of 7,000 older US residents found that food insecurity was associated with a higher risk of dementia, as well as poorer memory function and accelerated memory decline. The researchers suggest that addressing food insecurity may have benefits for brain health.
A new study reveals that a genetic mutation in microglia can elevate Alzheimer's risk by reducing brain circuit connections, promoting inflammation, and impairing debris clearance. The mutation affects the TREM2 protein, leading to increased expression of inflammatory genes and impaired response to neuron injury.
Researchers tested EMDR, a therapy proven to treat PTSD and depression, to reduce addiction cravings. The study found Addiction-focused EMDR was as effective as cognitive behavioral therapy for cravings, reducing symptoms by clinically significant amounts.
Researchers at Trinity College Dublin discovered that autism-induced maternal immune response alters brain development and prevents infantile amnesia. Memories formed during infancy can be permanently reinstated through light-activated neural pathways in adults.
A newly developed labeling method allows for visualization of intraregional synaptic connections between inhibitory interneurons and excitatory engram cells. Researchers have identified the role of inhibitory interneurons in memory expression, suggesting that they suppress fear expression by inhibiting fear engram cells.
A research team at the University of Minnesota Medical School has identified the cerebellum as a critical component in coordinating brain networks essential for social recognition memory. This discovery holds promise for the development of targeted therapies for neurodegenerative disorders, which often feature loss of recognition memory.
Researchers shed light on TIMP2's role in regulating hippocampal plasticity and function, which decreases with age. Targeting the extracellular matrix may improve plasticity in the brain, offering new directions for mitigating neurodegenerative disorders.
A recent study published in Nutrients found that daily strawberry consumption can improve cognitive performance and reduce depressive symptoms in middle-aged adults. The research, led by Professor Robert Krikorian, suggests that strawberries contain antioxidants and micronutrients that may help mitigate the risk of dementia.
A study in mice finds that two proteins, MAP6 and Kv3.1, interact to control movement, memory, and anxiety. Disrupting this interaction can lead to behavioral changes, including hyperactivity and impaired memory, highlighting potential new targets for schizophrenia treatment.
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 Cornell University-led study has separated the role of the hippocampus in two functions of memory, which are crucial for associating time, place, and past experiences with future actions. The breakthrough has significant implications for treating memory and learning issues found in Alzheimer's disease and dementia.
A new study found that people with subjective memory decline who also exhibit minor test deficits are more likely to progress to mild cognitive impairment. Participants who showed no signs of problems on standard tests had a lower risk of developing the condition.
A study using virtual reality led by UCL researchers found people with early Alzheimer's consistently overestimated turns and showed increased variability in sense of direction. These specific impairments were not observed in healthy older participants or those with mild cognitive impairment.
A clinical trial led by Western Sydney University's NICM Health Research Institute has revealed that Sailuotong, a novel herbal extract, shows promise as a potential treatment for mild cognitive impairment. The study found improvements in memory and executive function in participants taking SLT compared to those on a placebo.
Middle-aged Chinese surgery patients experience subjective cognitive impairment within 12 months after surgery, with identified risk factors. Preoperative psychological interventions and optimized perioperative management may help prevent postoperative cognitive impairment.
Scientists at Temple University's Alzheimer's Center have identified a promising new therapeutic target for Alzheimer's disease: the protein ABCA7. The study found that cholesterol depletion and inflammation suppress ABCA7 levels in human brain cells, potentially contributing to disease onset.
A new study aims to identify environmental and social factors contributing to Alzheimer's disease in older Black adults, who are up to two times more likely to develop the condition. Using remote cognitive assessments and biomarkers, researchers hope to gain a better understanding of the biopsychosocial factors behind this disparity.
Researchers identify somatostatin-positive interneurons as crucial in maintaining cognitive function, and their dysfunction leads to impaired memory and learning. The study uses a toxin to ablate these cells, resulting in mice exhibiting cognitive deficits similar to those seen in aging humans.
A study proposes a therapy to reverse memory deficits in mice exposed to alcohol during pregnancy and lactation, identifying the neurobiological mechanism responsible. The treatment involves pioglitazone, which stimulates PPAR receptors, alleviating cognitive memory deficits in individuals with fetal alcohol spectrum disorders.
Researchers discovered protein p53's role in regulating sociability, repetitive behavior, and hippocampus-related learning and memory in mice. Lowering p53 levels led to changes in gene expressions related to behavior, while elevated p53 levels were linked to positive learning outcomes.
A new three-year grant will provide specialized dementia services and supports to underserved communities in Broward County. The project aims to improve quality of life for individuals living with or at risk of Alzheimer's disease, as well as their family caregivers.