Articles tagged with Memory Disorders
Researchers found that hysterectomy in rats with intact ovaries led to a memory deficit, suggesting the uterus may have functions beyond reproduction. The study tested rats with different types of menopause surgical interventions and found that only those with just the uterus removed had a negative effect on working memory.
A recent rat study published in the Endocrine Society's journal found that hysterectomy can cause short-term memory loss in rats. Removing the ovaries alongside the uterus did not result in a similar impairment, suggesting a unique negative effect of hysterectomy on brain function.
A new study by NYU neuroscientists found that humans can accurately integrate information over extended periods, contradicting predictions of existing models. The results suggest that the passage of time does not significantly impact decision-making accuracy.
A 20-year study found that men who consumed more fruits and vegetables had better thinking and memory skills. Those who drank daily orange juice were also less likely to develop poor cognitive function, with a 47% lower risk compared to those who drank less than once a month.
A new study from the University of Sydney suggests that low-protein, high-carbohydrate diets may be beneficial for brain health and longevity. The research found improvements in learning, memory, and overall health in mice fed an unrestricted low-protein, high-carbohydrate diet.
Dr. Marise Parent is studying how the hippocampus inhibits eating behavior at a biochemical level to identify new strategies for treating diet-induced obesity and other eating-related disorders. Memory plays a crucial role in controlling eating behavior, but the exact brain areas involved are not well understood.
Researchers at CWRU are using big data methods to understand the mechanisms of Alzheimer's disease. They're developing large-scale knowledge bases that will identify ways to develop new or reuse existing drugs, with a focus on identifying possible new genes and pathways.
Research finds that prenatal exposure to THC can impair learning and memory in adolescents, while also improving symptoms in Alzheimer's disease patients. Long-term cannabinoid use alters brain metabolism and connectivity in adults, raising concerns for vulnerable populations.
Researchers at Rutgers University developed a device that improved balance in 100% of veterans with Gulf War Illness by stimulating the vestibular system. The findings suggest correcting the vestibular system may treat other conditions associated with the illness.
College students who drink alcohol don't intend to experience blackouts, but often lack understanding of risk factors and prevention strategies. Research suggests that drinking in moderation and pacing drinks can prevent blackouts.
Researchers at UT Southwestern Medical Center are part of a national effort to understand the neural circuits behind learning, memory, and behavior. Four scientists have received grants to study topics ranging from mental health to opioid addiction.
Researchers are conducting a randomized controlled trial to investigate the effects of treadmill walking exercise training on learning and memory performance, hippocampal volume, and resting-state functional connectivity in people with Multiple Sclerosis (MS). The study aims to determine if aerobic exercise can improve cognitive defici...
Research associates higher cortisol levels with impaired memory and reduced brain volume in middle-aged adults. Cognitive data from the Framingham Heart Study found that morning cortisol levels predicted worse brain structure and cognition.
A study published in Neurology found that middle-aged individuals with high cortisol levels experienced impaired memory and reduced brain volume compared to those with average cortisol levels. The study also found no links between low cortisol levels and memory or brain size.
Researchers found that osteocalcin, a bone hormone, reverses memory loss in the aging brain by interacting with key proteins like RbAp48. Exercise may also positively affect the brain through osteocalcin release, suggesting a potential way to stave off age-related memory loss.
Researchers have found that a rare gene mutation alters brain development in mice, impairing memory and disrupting communication between nerve cells. Transplanting specific types of nerve cells into the brain improved memory problems in affected mice.
New research reveals identical brain mechanisms trigger memories during both sleep and wakefulness, suggesting a crucial role for sleep in stabilizing memories. The study provides further evidence of the beneficial effects of sleep on memory formation and offers insights into how memories are formed.
A new study suggests that low estrogen levels during menopause may contribute to increased anxiety and minor memory problems. The research, conducted on female rats without ovaries, found a link between estrogen deficiency and anxiety-like behavior.
A novel drug has reversed memory deficits and stopped Alzheimer disease pathology in an animal model, with proven non-toxicity for humans. The drug targets the Caspase-1/Caspase-6 neurodegenerative pathway, a significant breakthrough in treating age-related memory loss.
Researchers at UCI and Japan's University of Tsukuba found that even light workouts can increase brain connectivity responsible for memory formation. A single 10-minute period of mild exertion yields considerable cognitive benefits.
A new brain imaging method can accurately diagnose Alzheimer's disease by detecting specific tau protein depositions. The method has shown great sensitivity and specificity in detecting 90-95% of all cases of Alzheimer's, outperforming existing diagnostic methods.
A randomized controlled trial shows that a behavioral treatment, Behavioral Activation, can reduce the risk of future memory loss by increasing social, cognitive, and/or physical activity. The study found an 88% reduction in cognitive decline compared to the control group.
A novel mechanism links epigenetic changes to translational control in the brain, controlling downstream regulation of translation during fear memory reconsolidation. This finding may help attenuate maladaptive memories in psychiatric disorders.
Researchers found that ACE inhibitors can block the activation of brain cells called microglia, which contribute to memory loss and cognitive impairments in SLE patients. The study suggests that these drugs may be used to preserve the memory of lupus patients.
A new study published in Scientific Reports suggests that severe trauma from war, torture, and natural disasters may not necessarily lead to posttraumatic stress disorder (PTSD) in refugees. However, those who struggle to control their memories are more likely to exhibit symptoms of PTSD.
A study from the University of Arizona found that individuals with the APOE e4 gene variant who carry it described memories with less vivid detail than those without it. The researchers hope to develop a clinical test sensitive enough to detect preclinical brain changes of Alzheimer's disease.
A Northwestern University study found that noninvasive brain stimulation improved the brain's ability to form new memories, with increased excitability lasting at least 24 hours. The research has implications for treating memory problems due to aging or brain damage.
A Baylor University study finds that children with certain types of brain tumors who undergo radiation treatment are more likely to forget recent memories than pre-treatment ones. The study suggests that radiation impacts the development of new cells in the hippocampus, leading to deficits in forming new memories.
A recent study published in the Journal of Neurochemistry reveals that long-term use of cannabis or cannabis-based drugs impairs memory in mice, with significant effects on brain function and communication between learning and memory regions. The research highlights the potential negative side effects of long-term cannabinoid exposure.
Researchers found that 'acting out' scenarios can improve prospective memory, a skill that reminds people to take action in the future. The study suggests that this technique may support individuals with mild cognitive impairment, leading to safer, more independent living.
Researchers at Lancaster and Lisbon Universities found that long-term exposure to cannabis impairs learning and memory in animals. Brain imaging studies showed the drug affects key brain regions involved in learning and memory.
Researchers at the University of Toronto have identified a mechanism that recreates vivid sensory experiences from memory using smell. The findings shed light on how sensory-rich memories are created and stored in our brains, and could explain why loss of smell is recognized as an early symptom of Alzheimer's disease.
Researchers found that physical activity increases hippocampal capacity by promoting neurogenesis, which clears out old memories. This process helps maintain memory capacity throughout life, particularly for those with Alzheimer's disease.
Researchers have discovered a specific brain neuron with a central role in learning and improving memory formation. The study found that activating this brain cell improved memory function, while overactivating it led to impaired learning and memory.
Researchers identified a new mechanism involved in age-related memory loss, where specific changes in brain circuit signaling lead to abnormal neuron responses. The study found that an adenosine receptor, A2A, is concentrated in neurons and its overactivation leads to increased glutamate release.
Researchers found that overproduction of ephrin-B1 in astrocytes weakens memory retention in mice. In contrast, decreased ephrin-B1 levels lead to more synapses and better learning. The study suggests that glial cells play a crucial role in regulating learning and memory.
A study by psychologists at the University of Illinois found that focusing on contextual details of emotional memories can improve cognitive performance and reduce negative effects. By shifting focus away from emotion and toward context, individuals can redirect brain resources to tasks and process memories more deeply.
A computational model suggests that older memories are affected in depression, with longer episodes causing more extensive memory deficits. The study's findings imply that major depressive disorder could have far-reaching consequences, including the loss of remote memories that do not recover even after the depression subsides.
A study by Joslin Diabetes Center researchers has found a correlation between long-term type 1 diabetes and mild cognitive decline, particularly in memory. The decline is also associated with an increased risk of cardiovascular disease.
Researchers discovered that a gene associated with human intellectual ability is necessary for normal memory formation in mice. Mice with the gene deletion replay shorter fragments of their previous experiences during periods of rest, impairing their ability to consolidate memories.
Researchers at Ohio State University found that mice housed in groups had better memories and healthier brains than those living in pairs. The study suggests that social connections can positively influence the aging brain and may be a key to preserving cognitive health.
Researchers identified a genetic link between SuperAgers and better memory retention, suggesting that therapies targeting the MAP2K3 gene could reduce age-related memory decline and Alzheimer's disease risk.
Researchers found that sleep spindles, brief bursts of brain activity, are linked to memory reactivation and improve retention. The rhythmic pattern of spindles may help segregate memories, preventing interference between them.
A recent study published in Springer's Archives of Sexual Behavior suggests that older adults who engage in regular intimate activities and emotional closeness do not experience a slower rate of cognitive decline compared to those who are less active. However, this relationship is only observed on short-term memory tests, not over time.
Researchers at Indiana University found that rats can replay past events from memory using episodic memory replay. The study confirms the ability of animals to recall specific events and their order, which is essential for making sense of scenarios. This breakthrough could lead to more effective treatments for Alzheimer's disease.
Researchers found that trace amounts of beta-amyloid predicted future levels of tau and both preceded memory decline. Early intervention is crucial in slowing Alzheimer's disease progression by targeting anti-amyloid therapies before symptoms appear.
Researchers found that as working memory load increases, brain wave synchrony among three key regions breaks down, leading to a loss of communication and sustaining working memory. This study sheds light on the intrinsic limit of conscious thought and cognitive performance, potentially explaining psychiatric disorders.
Caffeine found to exacerbate neuropsychiatric symptoms in Alzheimer's disease, impacting anxiety and cognitive flexibility. Long-term consumption worsened BPSD-like symptoms in mouse models.
Researchers successfully implemented a prosthetic system that utilizes individual brain cell patterns to enhance memory encoding and recall. In a pilot study, participants showed significant improvements in episodic memory performance, with the most notable gain observed when stimulated with correct-answer codes.
A study published by the American Academy of Neurology found that estradiol therapy via skin patches maintained brain volume and reduced amyloid plaque deposits in women. Meanwhile, estrogen pills caused greater structural changes in the brain, which stopped once treatment was stopped.
A study by Massachusetts General Hospital researchers identified a neural circuit mechanism involved in preserving memory specificity and a genetic 'switch' that can slow down memory generalization. Targeting levels of abLIM3 protein could improve memory in aging and reduce symptoms of PTSD.
Researchers used high-resolution functional brain imaging to study memory performance in younger and older adults. The study found that object memory is more vulnerable to age-related decline than spatial memory, with a specific region of the brain linked to this deficit.
A study by University of California, Irvine researchers found that high-resolution brain imaging can identify the underlying causes of differences in memory proficiency between older and younger adults. The study revealed that object memory is more vulnerable to age-related decline than spatial memory.
Researchers discovered that older adults naturally tap into this strategy to bolster memory when remembering becomes difficult. They unknowingly move their eyes in the same pattern over and over again, even when looking at a blank screen.
A preliminary study has found an association between central hearing loss and mild cognitive impairment in some people. Researchers discovered that individuals with central hearing loss were twice as likely to have mild cognitive impairment compared to those without hearing loss.
A study of 312 participants who had surgery and 652 participants who did not found that surgery was associated with a decline in immediate memory by one point out of 30 possible test scores. Additionally, reduced working memory decline was linked to longer cumulative operations.
Researchers at George Washington University are exploring a possible link between post-traumatic stress disorder (PTSD) and cardiovascular disease. A recent grant of over $1.5 million will investigate the brain renin-angiotensin system's role in this connection.
Researchers used fMRI to study brain activity while watching Memento, finding repeating patterns in the brain that correspond to key scenes. These 'neural fingerprints' help viewers piece together the storyline, revealing insights into how the brain processes narratives and memory.
Researchers have discovered that removing a molecular brake pad called histone deacetylase 3 (HDAC3) restores flexibility and allows the brain to form long-term memories normally. This breakthrough could potentially lead to new treatments for improving memory formation in older individuals.
A new study published in Neurology suggests that individuals who do not recognize their own memory problems are nearly threefold more likely to develop dementia within two years. This lack of awareness is associated with impaired brain metabolic function and higher rates of amyloid deposition, a protein linked to Alzheimer's disease.