Articles tagged with Associative Memory
A study by Christian König and Ayse Yarali found that fruit flies generalize their memories of an electric shock to a range of similar scents, mirroring the behavior of PTSD sufferers. This ability can be beneficial but also detrimental if overgeneralized.
Researchers find that eyewitness confidence can reliably indicate accurate identifications when made under specific, 'pristine' conditions. Low confidence, however, always signifies a high risk of error.
A study analyzing Wikipedia articles about airline crashes between 2008 and 2016 found that recent events trigger past memories, with a short-term attention span for recent crashes. Aviation disasters with large numbers of deaths are more memorable than reported events with fewer fatalities.
A study of nearly 1,500 Wikipedia articles on airplane crashes found that recent incidents trigger collective memory of past events, forming an interconnected network. The number of deaths and date of the crash significantly impact view flow, while prior viewership of target articles also play a role.
Researchers found that musical cues with high arousal and positive emotion triggered the recall of clear, vivid memories, while those with negative emotions led to less specific recollections. The study's findings suggest that emotional content of musical cues influences the type of memories accessed.
Scientists discovered specific brain signals associated with fearful experiences in rat brains, allowing them to predict location-based avoidance. The study suggests a potential mechanism for understanding memory loss in Alzheimer's disease.
Scientists have identified specific groups of neurons in the medial prefrontal cortex that develop codes to store relevant information from multiple experiences. Over time, these neurons lose less important details unique to each experience. The findings provide new insight into how the brain collects and stores useful knowledge.
Researchers found that older, fitter adults outperformed younger counterparts in memory tasks, with increased brain activity observed in regions typically declining with age. This suggests that cardiorespiratory fitness may contribute to brain maintenance and serve a compensatory role in age-related memory decline.
Research published in Psychological Science found that people who notice inconsistent misinformation have better memory for the event compared to those who don't see it. This suggests that detecting and remembering misinformation can actually enhance memory recognition.
Researchers analyzed PTSD symptom networks to understand how initial stress reactions develop into longer-term problems. The study found that intrusive memories and reactivity are centrally related to other symptoms in the acute phase.
Researchers at Binghamton University have figured out how much damage memory units can sustain before becoming unreadable and developed new repair techniques to retrieve clues. Scientists found that plastic coverings break down after three hours of exposure to temperatures above 300 degrees Celsius, but memory chips remain readable.
Researchers at the Stowers Institute discovered Orb2's role in encoding memory and forming long-term memory in fruit flies. The protein's prion-like ability transforms into clusters under certain conditions, which helps stabilize memories.
The study found that neurons fire to relatively few concepts, which tend to be largely related. Internet searches were used to establish degree of association between concepts and show that these associations are encoded by neurons in memory areas.
Researchers at Scripps Research Institute have identified a sub-region in the medial prefrontal cortex that synthesizes proteins for contextual fear memory. Inhibiting protein synthesis before memory formation prevents long-term recall, highlighting the critical role of early protein synthesis.
A study of healthy postmenopausal women found that reproductive life events related to sex hormones positively impact cognition and verbal memory. Longer reproductive periods and earlier menarche are inversely linked with cognitive function.
Studies show that when learning objects in an open space, spatial memory is accessed step-by-step, while environmental spaces require more time to recall objects from neighboring corridors. This research has implications for understanding navigation and the neuronal basis of wayfinding.
Researchers found that when neurons fire in a coordinated rhythm, like different instruments in an orchestra, we remember the order of events. Notably, gamma activity associated with each object was temporally ordered along a slower theta oscillation when the order was correctly encoded.
Researchers discover that five hours of sleep deprivation leads to a loss of connectivity between neurons in the hippocampus, a region associated with learning and memory. However, blocking the protein cofilin and allowing recovery sleep restores neuronal connections and improves memory processes.
Researchers found that middle-aged adults activated the medial prefrontal cortex instead of the visual cortex when recalling details, suggesting a change in what information they prioritize as they age. This shift may be beneficial for daily life tasks but could impact memory performance if not adapted to.
Researchers at Tohoku University have developed a new-structure nonvolatile magnetic memory device that achieves sub-nanosecond operation with minimal current consumption. The device overcomes limitations of existing nonvolatile memories and is expected to enable the creation of high-performance microcontroller units for IoT applications.
A study of 2,436 people found that listening to sad music can lead to feelings of pleasure, comfort, and relief, but also painful experiences related to personal loss. The research has implications for music therapy and rehabilitation, highlighting the complexity of human emotions in response to sad music.
New research by Dr. Steven Laviolette suggests that opiate-induced changes in brain circuits can be reversed, targeting dopamine signalling and protein adaptations to prevent or reverse addiction. The findings aim to inform approaches to addiction treatment and develop more effective pharmacological interventions.
A new study from RIKEN Brain Science Institute reveals that the brain processes ambiguous associations, like those between odors and food or sounds and predators. Researchers found that the amygdala stores both memories and uncertainty in neural circuits.
A new study in mice shows that REM sleep is essential for consolidating both contextual and emotional memories. Inhibiting theta oscillations during REM sleep kept mice from forming these memories, while disrupting them outside of REM sleep had no effect.
A new UCL study found that bad experiences are strongly remembered, but surrounding context is weakly recalled due to reduced activity in the hippocampus. This imbalance can lead to strong but fragmented memory for traumatic content, contributing to post-traumatic stress disorder symptoms.
A new-structure magnetic memory device utilizing spin-orbit-torque-induced magnetization switching has been successfully developed by Tohoku University researchers. The device boasts ultrafast magnetization reversal timescales and potential benefits for power-efficient integrated circuits.
Researchers found a pathway in the brain linked to forgetting, which erases memories. The study suggests a balance between learning and forgetting is necessary for memory formation.
A study found that young adults with hostile attitudes and poor coping skills may experience significant declines in thinking and memory abilities decades later. The study, which followed 3,126 participants from age 25 to 50, revealed that increased levels of hostility and effortful coping were associated with poorer cognitive performa...
Researchers found that brains prioritize high-reward memories, reinforcing them through repetition at rest. This process strengthens connections and helps fix memories in place.
A study of over 3,400 participants found that long-term marijuana use was associated with poorer verbal memory, but not other areas of cognitive function. The study suggests that young adults may be skeptical about the risks of marijuana use and highlights the need for effective health advice.
Researchers at Stowers Institute discover that Orb2 protein transforms from repressor to activator, solidifying and strengthening memory connections in the brain. This biochemical mechanism may underlie how fleeting experiences create enduring memories.
Researchers found that aerobic exercise improves the volume of the entorhinal cortex, an area crucial for memory, in healthy young adults. This study suggests that regular physical activity may be beneficial for brain health and cognitive function in younger generations.
A new study has found that older adults who take more steps perform better on memory tasks than those who are more sedentary. The association between physical activity and memory was strongest with a task requiring recalling face-name associations.
A study by Professor Victor Boucher of the University of Montreal found that repeating aloud boosts verbal memory, especially when done in a context of communication. The research showed that repeating aloud to someone else increased information recall compared to repeating silently or in one's head.
Researchers discovered that valence change memory (VCM) cells use both negatively charged oxygen ions and positively charged metal ions for switching characteristics. This finding opens up new options for designing ReRAMs and could lead to improved performance, energy efficiency, and longevity.
A new study published in Neurology found that people who develop dementia experience a decline in awareness of their memory problems two to three years before the disease onset. The study also identified several dementia-related brain changes associated with this decline.
A recent study at the Center for BrainHealth found that nicotine use alters the effects of marijuana on the brain. The researchers discovered an association between smaller hippocampal brain volume and increased memory performance in individuals who use both marijuana and tobacco compared to those who only use marijuana or tobacco excl...
Researchers from Cardiff University identified a process in the brain that can help rescue lost memories or bury bad ones. They found that strong reminders can recover memories previously thought to be lost in rats.
Scientists from the Scripps Research Institute have developed a new therapy that selectively erases drug-associated memories, preventing relapse in animal models of methamphetamine addiction. The treatment, which involves a single injection of blebbistatin, successfully disrupted long-term storage of drug-related memories and blocked r...
Researchers found that playing Tetris after reactivating traumatic memories reduces their occurrence over time. The study suggests a potential preventative treatment for PTSD by bringing back traumatic memories under controlled conditions.
Scientists reveal that neurons change their firing properties to encode new associations, forming new memories in a matter of seconds. The study demonstrates the neural processes underlying real-life memory formation, showing that a single exposure is enough to create lasting memories.
A group of eight passengers who experienced a terrifying plane scare in 2001 had their brains scanned while recalling the event to study trauma memories. The study found that the passengers showed a remarkably similar pattern of heightened brain activity when recalling both the Air Transat incident and the 9/11 terrorist attacks, sugge...
A new study found that higher levels of soluble TNF receptor type two (sTNF-RII) are linked to reduced memory performance among breast cancer patients before treatment. Memory impairment was observed in patients compared to age-matched control subjects.
A study published in PLOS ONE found that men under 45 who consume more trans fats have poorer memory function, with an average drop of 86 words recalled compared to those consuming no trans fats. The researchers linked this association to the adverse effects of trans fats on brain function.
Researchers found an association between cholesterol-lowering drugs and memory loss in the initial 30 days following medication initiation. The link may be due to increased contact with physicians among users of these medications, leading to earlier detection of memory issues.
Researchers develop method to suppress guilty memories, reducing their impact on behavior and brain activity. The study uses EEG and Implicit Association Tests to demonstrate the effectiveness of suppressing crime-related memories.
Researchers from the RIKEN-MIT Center for Neural Circuit Genetics demonstrated that traces of old memories remain in the amnestic brain and can be reactivated, allowing lost memories to be found. The study suggests that past memories may not be erased but lost and inaccessible for recall.
A study of retired NFL players found that those with a history of concussion were more likely to experience brain atrophy and impaired memory. The research suggests a potential link between repeated concussions and long-term cognitive decline.
Researchers found that simultaneous inhibition of multiple Class 1 HDACs led to improved memory restoration and synaptic growth in animal models of Alzheimer's disease. The study suggests a promising new therapeutic strategy for the treatment of this devastating neurodegenerative disorder.
In a groundbreaking study, researchers used optogenetics to artificially associate the memory of a foot shock with an unrelated environment, triggering increased fear-related behavior. The findings suggest that co-activated cell ensembles can link two distinct memories, paving the way for new treatments of psychiatric disorders.
A new study by Georgia Institute of Technology found that music can impair the memory of older adults when trying to remember names. The researchers tested participants' ability to associate faces with names in silence and while listening to background music, discovering a 10% decline in performance among older adults.
Researchers at SISSA found that re-enacting emotional expressions through facial movements enhances memory recall of corresponding emotions. This suggests motor information is encoded during storage and retrieval phases.
Adults who lose all their teeth show significant declines in memory and walking speeds compared to those with some teeth. The association between tooth loss and decline remains after adjusting for various factors.
Researchers from Scripps Florida are investigating microRNAs as a potential key to treating posttraumatic stress disorder (PTSD) by erasing traumatic memories without altering other, more benign ones. The study aims to understand how the brain stores toxic memories and develop new targets to selectively target harmful memories.
A new study from UT Dallas reveals that pre-stimulus brain activity predicts later memory performance, contradicting previous findings on the role of the hippocampus in memory. Greater frontal and parietal cortex activity was linked to false recall, while increased hippocampal activity predicted forgetting.
A large international study has discovered two common genetic variants associated with memory performance. The findings, published in Biological Psychiatry, suggest that these genetic variants may play a role in the development of age-related memory decline and dementia.
A recent study of approximately 1,000 healthy men found that those who consumed the most trans fats showed notably worse performance on a word memory test. The strength of the association remained even after taking into consideration things like age, education, ethnicity and depression.
Researchers found that the brain separates emotional responses from explicit memories of fear, leading to uncontrolled emotional reactions in post-traumatic stress disorder. This study may help develop new therapeutic strategies for these disorders.
A study suggests that the hippocampus plays a crucial role in the development of Huntington's disease cognitive decline. Researchers found increased expression of p75NTR in the hippocampus, leading to reduced dendritic spine density and memory defects.
Scientists alter emotional associations of specific memories by manipulating connections between the hippocampus and amygdala, finding that changing the emotional valence can transform a negative memory into a positive one. The research demonstrates potential for treating depression and anxiety.