Articles tagged with Memory Disorders
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A new NIH study finds that elevated stress hormones in diabetic rodents disrupt hippocampal function, leading to learning and memory deficits. Normalizing stress hormone levels reverses the negative impact and restores learning and memory.
A new five-year study aims to identify modifiable beliefs and behaviors that boost memory performance in middle-aged and older adults. By assessing psychological and physiological pathways, researchers hope to develop effective interventions to reduce distress, impairment, and dependence.
A new study by UCSD researchers found that autobiographical recollection was impaired for recent memories but fully intact for remote past memories in patients with medial temporal lobe damage. The Autobiographical Interview method elicited more detailed long-term memories than previous studies.
Researchers at MIT created a method called DICE-K, which allows them to see the effect of blocking and unblocking a single neural circuit in living animals. The study suggests that the hippocampal neural pathway plays a crucial role in quickly forming memories.
A clinical study showed daily supplementation with chromium picolinate improved cognitive function in older adults experiencing early memory decline. The results suggest that improving glucose metabolism with chromium picolinate supplementation may enhance cognition.
Research findings suggest a significant association between high blood pressure and the development of mild cognitive impairment. Approximately 9.9 out of every 1,000 elderly individuals without dementia develop this condition yearly, with 10-12% progressing to Alzheimer's disease each year.
Researchers found that young chimpanzees possess an extraordinary working memory capability for numerical recollection, surpassing that of human adults. This surprising ability is reminiscent of 'eidetic imagery,' a special skill present in some normal human children.
Kalirin-7 identified as key regulator of brain spine development, controlling neurotransmitter-receiving stations and strengthening neuronal connections. Abnormal spine structures linked to neurological disorders, including autism spectrum disorders, schizophrenia, and drug addiction.
Kalirin-7, a critical brain protein, is linked to learning and memory. It enhances synaptic spines in the brain, leading to better communication between neurons.
Duke University neuroscientists discovered that the brain region processing global gist of an event is more active in individuals with false memories. This finding could lead to tools for early Alzheimer's disease diagnosis and a better understanding of memory changes during aging.
Researchers found that people with high blood pressure or atrial fibrillation progress more rapidly with Alzheimer's disease. Treating these conditions may also slow memory loss in AD patients.
Duke researchers identified a new brain marker that may help predict future Alzheimer's disease by tracking deactivation of the posteromedial cortex. A third of individuals with mild cognitive impairment converted to Alzheimer's in three years, with fMRI scans predicting this progression.
A study by Albert Einstein College of Medicine found that people with higher education levels lose their memory faster after a dementia diagnosis. The accelerated decline in memory was observed to be 4 percent faster for each additional year of education.
A study published in Neurology found that people with more years of education lose their memory at a faster rate before a dementia diagnosis. The researchers discovered that higher levels of education delay the onset of dementia but accelerate memory decline once it begins.
Research suggests that computerized working memory training can improve executive functioning and symptoms of attention-deficit/hyperactivity disorder (ADHD) in children. This innovative approach offers a promising therapeutic strategy for alleviating the condition's impact on daily functioning.
Researchers at UCI discovered how to reverse learning and memory problems in fragile X syndrome by adding brain-derived neurotrophic factor proteins. This discovery provides scientific foundation for possible therapies that allow increased learning and memory in individuals with the condition.
A new study found that when faced with two 'bad' choices, consumers tend to opt to get rid of what they already have. This is due to a stronger preference for possession loss aversion than valence loss aversion. The researchers discovered that this effect is more pronounced in situations where the options are risk-free or unattractive.
Researchers have identified a new brain marker that may help diagnose Alzheimer's disease earlier, using fMRI to monitor changes in brain activation and deactivation. The study found that impaired deactivation in the posteromedial cortices was closely related to memory impairment and neuropsychological testing scores.
A molecular recycling plant has been found in the brain that enables nerve cells to record new experiences and maintain memories over time. This process involves the constant movement of receptors around synapses, which are then recycled and returned intact.
A six-year study involving 3,885 participants found no significant changes in memory function among overweight and obese individuals. In contrast, those who were underweight experienced more cognitive decline over time. The study suggests that being overweight or obese in old age may not be a risk factor for memory problems.
Researchers found that high levels of Amyloid-beta induce seizure-like activity in learning and memory centers, leading to cognitive impairments. The study provides new insights into the development of Alzheimer-related cognitive decline and potential therapeutic strategies.
A new study found that high stress levels contribute to memory loss among individuals at risk for developing Alzheimer's disease. Those with the APOE-å4 gene variant and high cortisol levels showed significant memory impairment, suggesting a link between chronic stress and cognitive decline.
Aging does not seem to affect people's ability to judge their own learning of text materials, according to a new study. Researchers found that older adults can regulate their learning more effectively if they have accurate self-evaluation skills.
A study published in Neurology found that women who drank more than three cups of coffee per day had less decline in memory over time. The benefits increased with age, with coffee drinkers being 30-70% less likely to experience memory decline.
A six-month study found that a medication initially used for mild to moderate Alzheimer’s disease improved memory and global function in people with severe Alzheimer’s disease. Cognitive tests showed stabilization or improvement in 63% of participants taking the drug compared to 39% on placebo.
Researchers at Johns Hopkins Medicine have discovered a new biochemical mechanism for memory storage, involving persistent changes in slow nerve currents. The discovery may also link memory and addiction, with potential implications for treating conditions such as epilepsy and diseases of memory.
A study by Universitat Autonoma de Barcelona found that the prelimbic prefrontal cortex plays a crucial role in social transmission of food preference. This discovery sheds new light on the functioning of declarative memory, which is affected in Alzheimer's disease.
A study published in the American Academy of Neurology found that older women experiencing memory loss are more likely to have sleep disturbances. The nearly 25% of women who experienced cognitive decline were twice as likely to experience sleep disturbances as those without memory problems.
A study found that children with Tourette's syndrome are quicker at processing certain mental grammar skills, including rule-governed language tasks. They showed superior performance compared to typically developing children in producing grammatically correct past tense forms.
A new University of Colorado at Boulder study shows people can suppress emotional memories through practice, which could lead to new therapies for conditions like post-traumatic stress disorder and depression. The study found two mechanisms in the prefrontal region of the brain are involved in memory suppression.
Researchers found that older adults with difficulty identifying common odors were more likely to develop mild cognitive impairment and Alzheimer's disease. Olfactory dysfunction was associated with lower cognitive scores and a faster decline in memory, supporting the idea that smell identification may be an early indicator of Alzheimer's.
Researchers at Fox Chase Cancer Center discovered that memory CD8 T cells can protect against viral diseases without migrating to the site of infection. These cells rapidly multiply and kill target cells inside the lymph node, decreasing viral spread to vital organs.
People who experience negative emotions such as depression and anxiety are 40% more likely to develop mild cognitive impairment. Chronic stress affects the brain's stress response area, also regulating memory. Researchers found that distress-prone individuals are at a higher risk of developing memory problems over time.
For people with temporal lobe epilepsy, epilepsy surgery can eliminate seizures in 60-85% and improve quality of life, but also lead to memory problems in 25-40%. Quality of life scores remain stable for those with seizures only.
A study published by the American Academy of Neurology found that consuming up to one drink a day can slow the development of dementia in individuals with mild cognitive impairment. The participants, aged 65-84, who consumed wine had an 85% slower rate of progression compared to those who never drank.
Researchers at the University of Alberta have confirmed that chronic pain affects attention and memory in 67% of participants. Chronic pain can disrupt the maintenance of the memory trace required to hold information for processing.
Researchers have developed unique images of physical changes in brain cells associated with memory, uncovering clues about memory loss linked to cognitive disorders. The study also reveals that LTP deficiencies accompany the memory loss seen during the early stages of Huntington's disease and can be fully reversed through treatment.
Brandeis University researchers have identified CaMKII as a key molecule in memory storage, allowing them to induce and biochemically erase memory in rat hippocampus slices. This discovery holds promise for treating Alzheimer's and epilepsy by weakening overly strengthened synapses.
Treatment with Simvastatin significantly improved spatial memory in mice genetically bred to have an Alzheimer's-like disease, with more pronounced effects in males. The study found that statin increased levels of nNOS, a substance that causes dilation of blood vessels and improves circulation to the brain.
Researchers found that enriched environments improved learning and memory in mice with neurodegeneration due to p25 activation. The animals showed significant gains on memory tests and recovered long-term memories weeks after training. However, no evidence of new neuron growth was observed.
Research found that sleep strengthens memory by protecting and consolidating information, leading to improved recall rates compared to wakefulness without interference. Sleep also helped individuals handle competing information more effectively.
Researchers found brain structure changes in people who developed dementia or Alzheimer's disease up to four years before memory loss began. Those destined for MCI had lower cognitive test scores at the start of the study, even within normal ranges.
A gene mutation in mice results in enhanced long-term memory, pointing to a potential target for developing a drug to treat memory loss. The mutation affects the phosphorylation of a protein involved in regulating gene expression, leading to improved performance in memory tests.
Researchers found that adults exhibit a 'curse-of-knowledge bias' when reasoning about false beliefs, with their own knowledge influencing their ability to reason. Additionally, age affects false memory development, with children showing improved performance at older ages. The study also discovered a circadian rhythm in central process...
A study published by the American Academy of Neurology found that weight loss surgery can lead to vitamin B1 deficiency, resulting in memory loss, confusion, and other neurological problems. The syndrome, known as Wernicke encephalopathy, affects the brain and nervous system when the body lacks sufficient thiamine.
Researchers at the University of Bristol have discovered how controlling glycogen synthase kinase-3 (GSK3) activity can improve neuronal connections and prevent memory erasure in brain disorders. This breakthrough sheds light on the role of GSK3 in normal neuronal function and may lead to the development of drugs to inhibit its activity.
A study by Thomas Foster at the University of Florida found that rats become forgetful due to an imbalance in brain cell communication. The researchers discovered that 'long-term depression' - a normal process that helps sculpt memory - can lead to rapid forgetting when it occurs excessively.
A group setting exposes individuals to brand information, making them forget competitors and their own preferences. The study found a stronger effect on familiar brands, where the exposure to other group members' mentions amplifies the disruption.
A new study published in The Lancet found that folic acid supplementation can improve memory and information processing speed in older adults. Researchers randomly assigned participants to receive either 800 micrograms of folic acid daily or a placebo for 3 years, with significant improvements observed in those receiving the supplement.
A new study from USC reveals that better-educated older adults experience greater declines in word memory compared to their less educated peers. Researchers found that while education is consistently linked to improved cognitive performance, it may not compensate for normal age-related memory loss after 70.
Researchers suggest that mental training and physical activity can protect against declines in cognition, including memory, language, and abstract reasoning. A recent study involving over 3,000 participants found immediate improvements in memory and sustained benefits after five years.
A study by UW-Madison researchers found that the inferior frontal gyrus (IFG) is essential for blocking interference in memory, which can lead to confusion. The technique of transcranial magnetic stimulation (TMS) allowed them to temporarily disrupt the IFG and demonstrate its crucial role in controlling memory operations.
Researchers found that memory problems in older adults are associated with Alzheimer's disease pathology in the brain. The study used memory complaint scores to identify individuals with brain changes linked to Alzheimer's disease, suggesting that memory complaints may serve as an early warning system.
A new study found that rote learning can improve memory in seniors after an intensive period of memorization followed by a six-week rest. The volunteers exhibited improved memory performance, correlated with metabolic changes in the brain.
A new study from the University of Michigan Health System suggests that hormone therapy may help retain certain memory functions in postmenopausal women. The research found increased brain activity in the prefrontal cortex of participants taking combined estrogen-progestin hormone therapy, compared to those on placebo.
Researchers at Georgetown University Medical Center have reported a compound called tramiprosate that reduced levels of a marker for the progression of Alzheimer's disease. The study suggests the potential for slowing down disease progression by targeting the amyloid peptide, considered to be the molecular cause of the disease.
Recent test tube and animal experiments suggest that certain general anaesthetics could increase the risk of developing Alzheimer's disease and other memory problems in elderly patients. The studies also highlight the need for more careful recording of anaesthetic combinations and doses to assess potential risks.
Johnson and Qian found that NR1/2D receptors respond to weak inputs, strengthening synapses and facilitating learning and memory. Their discovery sheds light on the mechanisms behind diseases such as schizophrenia and Alzheimer's.
Researchers found that picornavirus-related infections can accumulate over an individual's lifetime, leading to clinical cognitive memory deficits. The study suggests a link between picornavirus infections and inflammation of the brain, particularly in the hippocampus region.
A study has identified a human 'memory gene' called Kibra that plays a significant role in memory performance. The research, conducted by the Translational Genomics Research Institute and other institutions, found a strong association between Kibra and improved memory function.