Articles tagged with Memory Disorders
A $640,000 grant will fund research collaborations between ASU and Columbia University to expand knowledge about sensory feedback and motor actions involved in hand control. The study aims to understand how the brain stores memory representations of past actions and plans future actions.
Scientists at the University of Alberta investigated the molecular mechanism of memory encoding in neurons. They found components that fit together, enabling information processing and storage capacity necessary for forming and retaining memories.
A new study examines neural activation among individuals with and without a history of alcohol-induced fragmentary blackouts, suggesting individual differences in how alcohol impacts memory. The study found that some people are more likely to experience alcohol-induced blackouts due to unique patterns of blood flow and neural activity.
A study published in the journal Menopause found that menopause is associated with certain types of memory deficits, particularly those related to working memory and sustaining attention. The study's findings validate women's experiences of 'brain fog' during this phase of life.
A study by Dr. Lorraine Hope found that less than 60 seconds of physical exertion can severely impair a police officer's ability to remember details of an incident, including recognizing the person involved. This can lead to inaccuracies in witness accounts and potentially affect an officer's credibility.
A new study with monkeys suggests that higher doses of the ADHD medication methylphenidate can impair learning and memory, while lower doses improve performance. The results have implications for finding the optimal dosage for children with ADHD.
Researchers validated protease cathepsin B as a target to improve memory deficits and reduce amyloid plaque pathology in an animal model representative of most AD patients. Deleting the CatB gene improved memory deficits while reducing amyloid plaque, mimicking that found in AD.
A new article from the American Chemical Society suggests that berry fruits contain high levels of antioxidants, which can protect cells from damage. The study also found that eating berries changes the way neurons communicate, potentially preventing inflammation in the brain and improving motor control and cognition.
Researchers found that higher levels of VILIP-1 in the spinal fluid are linked to faster mental decline in patients with early Alzheimer's disease. This study suggests that VILIP-1 may be a better predictor of Alzheimer's progression than other markers.
Researchers found that a memory training strategy can help people with mild cognitive impairment (MCI) remember specific information, such as object locations. The technique showed increased activity in the hippocampus, a critical brain region for forming new memories.
Researchers have found that an epigenetic blockade affects people with Alzheimer's disease, leading to a blockade of genes involved in learning and memory. A treatment approach using gene therapy reduced HDAC2 levels, preventing the blockade and improving neuroplasticity.
A new study reveals that an overactive enzyme called HDAC2 is responsible for memory problems in Alzheimer's disease. When genetically blocked, the enzyme 'reawakens' neurons and restores cognitive function in mice. The findings suggest that drugs inhibiting HDAC2 could be effective treatments for some devastating effects of the disease.
Researchers at Karolinska Institutet discovered that D-serine improves memory in 'depressed' rats by increasing brain plasticity. This finding suggests a potential treatment approach for depression, targeting the support cells' functionality.
A study published by the American Academy of Neurology suggests that consuming excessive calories may double the risk of mild cognitive impairment (MCI) in individuals aged 70 and above. The findings indicate a dose-response pattern where higher caloric intake corresponds to increased MCI risk.
A new study from the University of Haifa identifies developmental coordination disorder (DCD) in children through a simple writing task, highlighting the need for early diagnosis and treatment. Children with DCD struggle with motor coordination, leading to difficulties in everyday tasks like dressing and typing.
Researchers at UCLA have found that stimulating a critical junction in the brain can improve memory in human patients. The study focuses on the entorhinal cortex, which plays a crucial role in transforming daily experiences into lasting memories.
A new study published by Baycrest Centre for Geriatric Care found that smartphone training can significantly improve daily life skills and boost confidence levels among individuals with moderate-to-severe memory impairment. Participants showed 'robust increases' in day-to-day memory functioning after taking the training.
A new questionnaire, AQ, can discriminate between normal memory loss and aMCI, a precursor to Alzheimer's disease. The study found that four questions were strong indicators of aMCI, including repetition of questions and difficulties with finances and direction.
Research suggests that severe memory loss in years before a stroke may predict a future deadly stroke. Participants who died after stroke had more severe memory decline compared to those who survived or didn't have a stroke.
A recent study published in Neurology found that men are at higher risk of experiencing mild cognitive impairment (MCI) than women. The study, which analyzed data from 1,450 participants aged 70-89, revealed that the number of new cases of MCI per year was higher in men, affecting 72 per 1,000 people.
A study published in Neurology found that nicotine patches improved memory loss in older adults with mild cognitive impairment by 46% after six months. The treatment had minimal side effects and showed promise for further research into its potential benefits.
A clinical trial found that using a nicotine patch for six months improved long-term memory in people with mild cognitive impairment by 46%. The study, published in Neurology, suggests that nicotine may be beneficial for early signs of memory loss.
Researchers have identified a 90% accuracy biomarker that increases the risk of developing Alzheimer's by 10 years. Patients with low levels of beta-amyloid and high tau protein levels are at highest risk, indicating potential therapeutic targets for early intervention.
Researchers found a link between silent strokes and memory loss in older adults, with those having silent strokes scoring worse on memory tests. The study suggests that stroke prevention may help stave off memory problems.
A study found that individuals with smaller brain cortex regions are more likely to develop early symptoms of Alzheimer's disease. The research identified 21% of those at high risk for cognitive decline, compared to 7% of those at average risk.
Researchers are conducting a study to examine the effects of exercise and computerized memory training on executive function in people with Parkinson's disease. The goal is to determine if these interventions can slow or reverse memory changes and improve cognitive function.
Researchers at Baylor College of Medicine developed a memory-enhancing drug by inhibiting PKR activity, which boosts excitability and enhances learning and memory. In mice, PKR inhibition led to increased synaptic activity caused by gamma interferon, mimicking the effect of a 'memory pill'.
A new study published in Current Directions in Psychological Science warns that evolutionary tradeoffs limit human cognitive abilities. Research suggests that increasing intelligence comes with problems, such as increased disease risk, and there may be an upper limit to how smart humans can get.
A recent study found that individuals with mild cognitive impairment and no memory problems who had the Alzheimer's biomarkers were more likely to have a lower BMI than those without the biomarkers. This association suggests a systemic metabolic response to the disease, possibly related to damage in the hypothalamus.
A modified Story Memory Technique was found to be effective in improving learning and memory deficits in people with multiple sclerosis. The treatment group showed greater activation in a widespread cortical network, indicating improved cognitive function.
Studies explore the influence of changes in brain structure, function, or both on human behavior and learning. Research findings may lead to effective interventions and treatments for brain diseases and conditions affecting memory.
A 22-year-old woman with amnesia demonstrated that her short-term memory is impaired when trying to recall new information. However, she showed no difficulty recalling familiar faces or words.
A study from Arizona State University found that the hormone medroxyprogesterone acetate (MPA) in Depo Provera shots impairs memory in rodents. The researchers also measured GABA's impact on brain function, which may contribute to memory loss.
Researchers found that tomosyn regulates synaptic signaling and plays a crucial role in controlling whether synapses get stronger or weaker, affecting memory formation. Knocking out tomosyn impaired fruit flies' ability to retain memories.
UCLA neuro-physicists discovered an optimal brain 'rhythm' for changing synaptic strength, contrary to previous assumptions. The findings suggest that stimulating synapses at naturally occurring frequencies, not high frequencies, increases synaptic strength and may lead to new therapies for learning disabilities.
Researchers found that kibra protein is essential for regulating brain circuitry and learning, leading to impaired memory in mice lacking the protein. The study suggests that kibra plays a crucial role in shaping brain connections during learning and memory formation.
A national study found intensive blood sugar control does preserve brain volume but lacks cognitive benefit in older people with diabetes. The study suggests focusing on diet, exercise and behavioral interventions to improve overall health.
Researchers at NASA developed a flexible memory fabric that can retain information for over 100 days, using copper-oxide fibers as the storage medium. The technology enables e-textiles to detect biomarkers, monitor vital signs, and transmit data to doctors.
Researchers have identified micro-RNA 34c as a key regulator of learning and Alzheimer's disease. Elevated levels of miRNA 34c are associated with memory impairment, while lowering its levels can restore learning ability in mouse models of Alzheimer's disease.
Researchers found that memory complaints in older adults are associated with poorer cognitive functioning. The study suggests clinicians should differentiate between types of memory complaints to identify those related to normal aging versus potential cognitive decline.
A new UCLA study found that a six-week memory fitness program improved verbal memory and reduced age-related memory decline in seniors over 80. The program included education on lifestyle factors impacting memory ability and overall brain health, resulting in enhanced self-perceived memory and cognitive function.
People with declarative memory impairment have trouble making common ground in conversation due to their inability to form new declarative memories. In the study, participants with amnesia looked equally at two elephants, showing no benefit from earlier conversations.
A small amount of exercise has been shown to prevent exaggerated inflammation in the brain and long-lasting memory impairments following a bacterial infection. This study suggests that voluntary exercise can confer robust benefits for those who exercised, especially for older adults at risk of memory loss.
A new study suggests that moderate exercise can prevent age-related memory loss after a bacterial infection. Researchers found that older rats who ran on an exercise wheel showed improved cognitive function and reduced inflammation in the hippocampus compared to non-exercising rats.
Researchers at NYU's Center for Neural Science have identified the hippocampus and perirhinal cortex as crucial brain areas involved in integrating 'what' and 'when' information. This discovery enhances our understanding of how memories are processed and may lead to new approaches for addressing memory-related disorders.
Researchers at University of Bristol found that multiple brain regions work together to form memories, particularly in recognizing faces and names. The study's findings have implications for understanding memory disorders like Alzheimer's disease.
Researchers used optogenetics to fragment sleep in mice, finding that minimal uninterrupted sleep is crucial for memory consolidation. The study suggests that compromised sleep continuity, such as in sleep disorders like apnea, may contribute to memory impairments.
A Johns Hopkins University study found that an existing anti-seizure drug improves memory and brain function in adults with a form of cognitive impairment. The findings suggest that the drug may slow the abnormal loss of brain function in some aging patients before their condition becomes Alzheimer's.
Researchers found that holding a memory of a visual event can 'contaminate' visual perception, leading to exaggerated misperceptions. The study used a visual illusion to demonstrate this effect, showing participants reported more dramatic changes in motion direction than actually existed.
Researchers found that transplanted stem cells restored learning and memory abilities in rats, with as few as 100,000 cells sufficient to improve cognition. The study provides hope for future stem cell therapies to alleviate side effects of radiotherapy for brain tumors.
Researchers at Michigan Medicine observed key aspects of brain circuit development in living organisms, revealing two distinct types of competition between cells that shape memory circuits. The findings suggest that the brain eliminates inactive connections to maintain efficient neural networks, which is crucial for learning and memory.
A new study found that a protein called soluble amyloid precursor protein beta (sAPPβ) may be a more accurate predictor of Alzheimer's disease than existing biomarkers. The researchers discovered that sAPPβ levels were significantly higher in participants who developed the disease, with an average of 1,200 nanograms per milliliter.
Researchers have discovered a potential new therapy for Alzheimer's disease, with the cysteine protease inhibitor E64d improving memory deficits and reducing β-amyloid build-up. The study suggests that increasing Cathepsin B activity is not detrimental to memory function, contrary to previous assumptions.
A new study by University of Calgary researcher Dr. David Hodgins highlights the growing issue of problem gambling as access to online gambling increases. Problem gamblers often co-occur with other mental health and substance-abuse disorders, and treatment effectiveness is variable.
Researchers at Penn have found that sleep deprivation affects the hippocampus, a part of the brain associated with memory function. The study identified adenosine as the source of memory loss and attention deficits caused by sleep deprivation.
A new study published in Neurology suggests that more than half of people diagnosed with Alzheimer's disease before age 60 are initially misdiagnosed due to atypical symptoms. Researchers found that 53% of those with no memory problems were incorrectly diagnosed, highlighting the need for biomarkers to improve diagnosis and treatment.
According to a recent report, dementia and mild cognitive impairment are prevalent among 'oldest old' women, who are 85 years of age and older. The prevalence of these conditions increases with age, with the highest rates found in women over 90 years old.
A study demonstrates that monkeys can recall and reproduce simple shapes from memory, mirroring the performance of humans using a standard recall test. This finding suggests that recollection might be an adaptive ability in primates long before humans evolved.
Biologists at UC San Diego discovered that electrical oscillations are critical for the brain to store spatial memories. Grid cells in the entorhinal cortex require precise timing of electrical oscillations to function properly, suggesting a key component in memory processing.
Researchers found cotinine reduced Alzheimer's disease brain plaques and prevented memory loss in mice, showing promising results for a potential therapy. Cotinine also stimulated the survival of neurons and enhanced attention and memory.