Articles tagged with Memory Disorders
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.
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 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.
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.
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.
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.
TGen researchers used the Affymetrix 500K array to identify a genetic variation associated with human memory performance. The study found that certain alleles of the Kibra gene were consistently present in individuals with good memory, but not those with poor memory.
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.
Researchers at the Salk Institute found that fisetin stimulates signaling pathways that enhance long-term memory in healthy mice. Fisetin was shown to induce differentiation of neural cells and activate a signaling pathway involved in memory formation, called long-term potentiation.
Scientists found that higher levels of acetylcholine during learning correlate with more detailed memories. The discovery could have implications for treating memory-related disorders.
Researchers at UT Southwestern Medical Center discovered that a natural stress hormone corticosterone can decrease the fearful response associated with reliving traumatic memories in mice. The study showed that this hormone enhances new memories competing with fearful memories, thereby decreasing their negative emotional significance.
A study of 120 older adults found significant memory problem complainants had reduced gray matter density in the brain, even without a diagnosis of Alzheimer's disease or mild cognitive impairment. This suggests that memory complaints may indicate an early 'pre-MCI' stage of dementia.
Researchers found that severely impaired patients taking rivastigmine showed significant improvement in attention and verbal memory test scores compared to placebo-treated patients. Rivastigmine was also found to be safe and well-tolerated with common side effects including nausea and dizziness.
Researchers found that anticipation can fire up two brain regions - amygdala and hippocampus - even before the event occurs, strengthening memories of disturbing events. This study has important implications for treating conditions like PTSD and social anxiety.
Scientists at SUNY Downstate Medical Center discovered a molecular mechanism maintaining memories in the brain by inhibiting a specific enzyme, protein kinase M zeta. This finding may have applications in treating chronic pain and memory loss conditions such as post-traumatic stress disorder.
Researchers at Columbia University Medical Center have successfully restored normal memory and synaptic function in mice suffering from Alzheimer's disease. By increasing the levels of ubiquitin C-terminal hydrolase L1 (Uch-L1), they were able to improve the animals' ability to create new memories.
Researchers found that increasing brain levels of the enzyme ubiquitin C-terminal hydrolase L1 (Uch-L1) can reverse lapses of memory in Alzheimer's mice. This suggests that Uch-L1 may play an important role in the pathogenesis of Alzheimer's disease and could be a new target for therapy.
Researchers continue studying aging and cognition decline with a $6.2 million grant to investigate biological changes that contribute to age-related cognitive decline. The study will focus on hormones such as human growth hormone and IGF-1, which have shown to improve learning and memory in older animals.
Researchers at Washington University in St. Louis used brain imaging to identify the most effective memory techniques, finding that visual inspection and verbal elaboration improved memory performance. The study also found individual differences in learning strategies were associated with distinct brain activity patterns.
A study found that patients with somatization syndrome incorrectly remember the likelihood of medical explanations for their symptoms. Doctors can reduce this bias by asking patients for summaries about what they've been told, benefiting both patients and the healthcare system.
Researchers developed an unobtrusive activity assessment system to track daily activity patterns of elderly individuals, detecting subtle changes that may indicate early signs of dementia. The study found significant differences in walking times and variability between healthy elders and those with mild cognitive impairment.
Researchers at UC Irvine discovered that a class of drugs called ampakines can reverse age-related memory loss by increasing the production of a naturally occurring protein in the brain. The study showed that even after the drug left the body, its effects on memory formation persisted.
Researchers studied participants under the influence of midazolam and a saline placebo to understand memory formation. They found that recollection was impaired by midazolam, while familiarity remained unaffected.
A new Mayo Clinic study finds that executive function, including concentration, decision-making, and higher-order problem solving, deteriorates after memory decline in Alzheimer's disease progression. This decline can cause people to become more impaired in daily activities.
Researchers discovered that women who develop dementia experience a decline in weight up to 10 years before memory loss. The study found that the brains of these women underwent changes before the onset of symptoms, potentially linked to postmenopausal hormonal changes or other factors.
The study found altered functionality in both the frontal and temporal lobes of the brain, suggesting a breakdown in communication between these regions. This may lead to new diagnostic and preventive strategies for detecting early AD.
Researchers are investigating how type 2 diabetes affects brain function and memory. The Edinburgh Type 2 Diabetes Study aims to identify risk factors linked to altered brain function in people with diabetes, which could inform the cause of diabetes-related memory problems.
Researchers found that leptin affects brain processes, improving learning and long-term memory in mice. Low levels of leptin may also be related to cognitive deficits in disorders like type two diabetes.
A new study found that Enablex, a prescription medication for overactive bladder (OAB), did not cause significant memory impairment in healthy adults aged 60 and older. In contrast, the alternative treatment Ditropan XL caused noticeable memory deterioration, despite the patients being unaware of this change.
A study of 1,271 elderly patients found that those with a history of stroke showed a more rapid decline in memory and cognitive abilities, particularly among men. The association was stronger in individuals without the APOE4 allele, which is linked to Alzheimer's disease.
The study found that explicit and implicit memory are strongly linked during encoding of new information, as measured by brain signal patterns. Researchers observed a reduction in brain activation when photos were viewed again, indicating repetition attenuation and a signature of implicit memory.
A study of adults with memory complaints found greater complaints were associated with global brain decline over two years. Those with the Alzhiemer's disease genetic risk factor showed more pronounced declines in temporal regions linked to memory functions.
Researchers found that individuals with Korsakoff Syndrome retain visual learning ability despite explicit memory impairment. Visuoperceptual learning, a component of implicit memory, was shown to be preserved in KS patients.
Researchers at Case Western Reserve University have identified a new cell type called Blanes cells that play a critical role in shaping the output of the olfactory system. These cells selectively communicate with granule cells, leading to a disproportionate impact on the olfactory system's functioning.
A research team at Johns Hopkins University has identified a protein complex in the brain that causes cognitive decline and memory loss, providing a potential target for drug development. This discovery may help prevent Alzheimer's disease, which affects millions of Americans.
University of Minnesota researchers have identified a specific protein complex linked to memory loss and cognitive decline in Alzheimer's disease. The discovery may lead to targeted drug development to prevent the disease from harming the brain.
A team of researchers from UCI has identified a new form of superior memory syndrome, hyperthymestic syndrome, in a 40-year-old woman known as AJ. The study found that AJ's memory is instant and deeply personal, related to her own life or to other events that were of interest to her.
A study published in Archives of Neurology found that cognitive impairment is common in ALS patients, affecting 30% of those studied. Nearly a quarter (23%) of these patients met criteria for dementia, with no significant differences in demographic or disease severity observed.
A new study at Brandeis University found that middle-aged and older adults who believe they can control their memory performance do so better. The study used mnemonic strategies to enhance memory performance in adults aged 21-83.
UCI researchers found a compound, AF267B, reduces hallmark lesions and improves cognitive function in genetically modified mice. The compound mimics the effects of acetylcholine and binds to M1 receptors, preventing beta-amyloid production and accumulating tangles.
Researchers found that directly reactivated memories are vulnerable to disruption, but associated memories remain unaffected. This study may pave the way for novel treatments of traumatic memories.
The $60 million ADNI study aims to identify biological markers for memory decline and Alzheimer's disease, utilizing serial MRI scans, PET scans, and biomarker measurements. Researchers will compare data from 800 adults aged 55-90 to develop standards for tracking memory decline progression.
A study by University of Rochester Medical Center researchers found no evidence of strictly memory problems in middle-aged women, but a correlation between forgetfulness and learning difficulties. The team suggests that stress, anxiety, and mood distress may contribute to perceived memory issues.