Articles tagged with Memory Processes
A review of 23 years of neuroimaging research finds that screen time affects the pre-frontal cortex and other brain regions involved in executive functions, memory, and processing. Digital experiences may shape children's brains and influence cognitive development, with both positive and negative impacts.
Researchers at The University of Texas at Dallas discovered distinct changes in brain network patterns associated with early-stage Alzheimer’s disease, affecting sensory and motor processing. These findings offer new insights into the broader impact of Alzheimer’s on brain function and potential targets for treatment.
A new training algorithm enabled the brain-like system to learn and improve continuously, achieving higher accuracy than conventional machine-learning approaches. The system's ability to process multiple streams of data simultaneously makes it promising for tasks like pattern recognition in complex data.
EPFL researchers have developed the world's first large-scale in-memory processor using 2D semiconductor materials, which could substantially cut the ICT sector's energy footprint. The processor combines data processing and storage onto a single device, reducing energy waste and improving efficiency.
A recent study published in the Proceedings of the National Academy of Sciences found that AI's deep convolutional neural networks can identify faces but struggle to capture other important information like emotional state and trustworthiness. Brain activity scans revealed a weak correlation between AI's codes and human brain represent...
Researchers shed light on TIMP2's role in regulating hippocampal plasticity and function, which decreases with age. Targeting the extracellular matrix may improve plasticity in the brain, offering new directions for mitigating neurodegenerative disorders.
Research from the University of East Anglia found that children who are too short for their age can suffer reduced cognitive ability due to differences in brain function as early as six months. The study discovered a link between stunted growth and disrupted visual working memory, making them more easily distracted.
Researchers developed an easy-to-use optical chip that can configure itself for different functions, enabling optical neural network applications. The chip achieves positive real-valued matrix computation and demonstrates optical routing, low-loss light energy splitting, and matrix computations.
A recent study by Ohio State University researchers found that saturated fats can interfere with the creation of new memories in aged brains. However, omega-3 fatty acids, particularly DHA, may help protect brain cells from fat-related inflammation. The study used cell cultures and brain tissue from aging mice to explore the effects of...
Scientists demonstrated that Caribbean box jellyfish can acquire the ability to avoid obstacles through associative learning, a process in which organisms form mental connections between sensory stimulations and behaviors. The study suggests that combining visual and mechanical stimuli is required for associative learning in jellyfish.
Scientists at the Max Planck Institute present a method for training artificial intelligence using physical processes, reducing energy consumption and computing time. The new approach relies on non-linear processes, such as optics, to mimic the human brain's parallel processing, potentially leading to more efficient neural networks.
A study found that two brain areas, typically associated with language processing, are also linked to social-semantic working memory. This challenge traditional views of language comprehension and its connection to social cognition.
Researchers found that insects like American cockroaches use the mushroom body to encode behavioral decision-making based on sensory information. The study challenges the prevailing view of insect cognition, suggesting a more complex brain function than previously thought.
Researchers at EPFL developed a novel system integrating 2D semiconductors and ferroelectric materials to create faster, more efficient electronics with brain-inspired operations. The technology enables significant energy reduction and advanced functionalities, including synaptic neuron function within the same device.
Researchers at Tokyo Institute of Technology have developed a novel ferroelectric semiconductor memory device with a 100 nm channel length, enabling high-density storage and seamless integration with existing semiconductor technologies. The device exhibits typical resistive switching, high on/off ratio, large memory window, and good re...
Researchers discovered intricate neural connections in Octopus vulgaris, a model organism for studying memory acquisition networks. The findings challenge traditional models of neural network functionality, revealing an evolutionary adaptation that underlies the octopus's unique cognitive prowess.
A new imaging technique, tau PET, has been shown to predict cognitive decline in Alzheimer's patients with greater accuracy than current methods. This breakthrough could lead to earlier diagnosis and treatment, improving patient outcomes.
A breakthrough in photonic memory has been achieved, enabling fast volatile modulation and nonvolatile weight storage for rapid training of optical neural networks. The 5-bit photonic memory utilizes a low-loss PCM antimonite to achieve rapid response times and energy-efficient processing.
Researchers found that people with prolonged COVID-19 symptoms experienced reduced performance in mental tasks up to two years post-infection. Those who didn't feel fully recovered after infection showed lower task accuracy scores.
Scientists have discovered that genes required for complex behaviors like learning, memory, and aggression originated around 650 million years ago. This finding has significant implications for understanding the evolutionary origin of these behaviors and their neural circuits.
Researchers investigated the dynamical evolution of EPR steering in a dissipative environment with different non-Markovian degrees, confirming the recovering ability dependent on non-Markovianity. The study reveals the influence of memory effects on EPR steering in open systems, deepening our understanding of its directional property.
Researchers created a small device that captures, processes, and stores visual information in a similar way to humans. This technology uses analog processing, reducing energy consumption and enhancing performance, with potential applications in bionic vision, autonomous operations, and advanced forensics.
Researchers at Brigham and Women's Hospital identified distinct brain network connections for visual and motor anosognosia, as well as a shared network for awareness of deficits. The study found that the hippocampus and precuneus play a key role in memory-based recognition of neurological deficits.
Researchers at Huazhong University of Science and Technology have developed a systematic review of laser powder bed fusion (LPBF)-fabricated NiTi alloys. The study highlights the effect of process parameters on printability, mechanical properties, and functional behaviors of NiTi shape memory alloys. These findings provide evidence for...
A study by Florida Atlantic University and CINVESTAV found that long-term running maintains the connectivity of adult-born hippocampal neurons, which contribute to memory function during aging. Exercise may prevent or delay age-related memory decline by increasing the survival and modifying the network of these neurons.
The gene LRRC4 regulates synapse formation, stability and excitatory transmission, playing a crucial role in learning, memory formation and storage. It also has key implications in neuronal disorders and aggressive brain and spinal cord cancer.
Researchers found that psilocybin facilitates fear extinction in mice by promoting hippocampal neuroplasticity. The study's results improve our understanding of the restorative effects of psilocybin on the brain and may lead to alternative treatments for PTSD.
New research shows that rhythmic brain activity helps organize transient bursts of activity in the brain to maintain short-term connections. Brain rhythms coordinate overlapping populations of neurons to store different pieces of information at the same time.
Researchers at Cedars-Sinai created computational models to bridge the gap between
Research using mice models of Alzheimer's disease found that deep brain stimulation activated only a small population of new neurons, restoring cognitive and non-cognitive functions. The study also identified protein pathways involved in improved memory performance and plaque clearance.
Research at the University of Massachusetts Amherst shows that circadian disruption from jet lag can harm adult neurogenesis, which supports learning and memory. The study found that the Cryptochrome 1 gene regulates this process and that misalignment can lead to adverse health effects such as dementia and mental illness.
Researchers discovered that ocular drifts, tiny jitters in the eyes, can be influenced by prior knowledge of expected visual targets, indicating a surprising level of cognitive control. This study adds to our understanding of how vision is controlled and directed by cognitive processes.
Researchers at the University of Illinois Grainger College of Engineering have successfully integrated arrays of electrochemical random-access memory (ECRAM) onto silicon transistors, creating a practical AI accelerator. This innovation eliminates energy costs associated with data transfer and enables efficient deep learning operations.
Scientists have identified distinct mechanisms by which people remove information from their working memory and found that forgetting requires much effort. They also discovered four brain networks that activate when memories are maintained or purged through different mechanisms.
Researchers developed memristors based on halogenated perovskite nanocrystals for more powerful and energy-efficient computing. Inspired by the human brain's synapses, these components combine data storage and processing, reducing energy consumption.
A long-term study found that regular leisure time physical activity at any age is associated with better brain function in later life. Maintaining an exercise routine throughout adulthood was particularly beneficial for preserving mental acuity and memory. The study, which included over 1,400 participants, showed that being physically ...
Researchers found serial dependence bias in tasks that require guessing coin values, indicating its impact on higher-order cognitive processing. The study suggests this bias can be minimized by presenting information in an environment that reduces human error.
Researchers have discovered a way to construct and control oxygen-deprived walls in nanoscopically thin materials, which can store data in multiple electronic dialects. These walls can retain their data states even when devices turn off, paving the way for next-gen electronics with enhanced memory capabilities.
Researchers found that a 30-minute mid-afternoon nap had the best balance of practicability and benefit, while shorter naps still improved mood, alertness, and memory encoding. The study suggests allocating at least 40 minutes for sleep to fall asleep.
The work group reframed what is clinically meaningful to slow Alzheimer's disease progression, including the need for combination therapies and realistic expectations of benefits and risks. Slowing brain deterioration by four to six months in early stages may preserve function, leading to meaningful outcomes for patients and families.
Research found that experiencing three or more concussions is linked with worsened brain function in later life. Participants who reported multiple concussions showed significant cognitive decline, particularly in attention and complex task completion.
Researchers found that orienteering can improve spatial navigation and memory in healthy adults, suggesting it could be a useful intervention to prevent cognitive decline. The sport's unique combination of physical exercise and navigational skills may stimulate parts of the brain that are no longer needed due to modern conveniences.
Researchers found that wildfire exposure led to difficulty in sensory interference processing and increased frontal cortex activity, similar to PTSD symptoms. Cognitive deficits persisted 6-12 months post-wildfire, highlighting the need for targeted interventions to address climate trauma.
Researchers developed HippoCamera, a new smartphone app that significantly improves memory recall by boosting attention to daily events. Users record videos and audio descriptions of everyday experiences, which are then replayed to reinforce memory consolidation.
A new study finds epigenetic aging is associated with aberrant neural oscillatory dynamics serving visuospatial processing in people with HIV. Participants showed accelerated biological age and different brain activity patterns compared to controls, suggesting a link between biological aging and neural function in PWH.
Researchers found that neurons in the hippocampus represent space in a nonlinear hyperbolic geometry that grows outward exponentially with time spent exploring an environment. This discovery provides valuable methods for analyzing data on neurocognitive disorders involving learning and memory.
Neuroscientists have uncovered a brain circuit that enables mice to rapidly escape to shelter when faced with a threat. The retrosplenial cortex and superior colliculus form a circuit that encodes the direction to a shelter, allowing mice to accurately orient and escape.
Scientists discovered that an artificial cell membrane can exhibit long-term potentiation, a hallmark of biological learning and memory, persisting for many hours. This finding has the potential to revolutionize next-generation computing materials and architectures by merging functions of processing and memory in neuromorphic computers.
Dr. Jayaraman's team will analyze glutamate receptors involved in learning and memory processes, shedding light on pathologies of learning disabilities, epilepsy, and other neurological issues.
Children's brains exhibit rapid GABA boosts during learning sessions, allowing for efficient consolidation of new information. Adults' brains, on the other hand, struggle to stabilize learned knowledge due to reduced GABA levels, leading to slower learning rates.
Researchers created a detailed map of the hippocampus's connections to the rest of the brain, finding fewer links with frontal lobes but more with visual networks. This discovery may change how we think about human memory and cognition, potentially shedding light on why some primates excel at certain memory tasks.
Researchers have uncovered the neural mechanisms behind sound perception, finding that the brain predicts expected sounds and responds to unexpected ones. The study provides insights into how the healthy brain learns complex skills and may offer clues for understanding neural disorders like schizophrenia.
Researchers used a neural network model to study how brain regions interact during sleep. They found that the hippocampus and neocortex work together to convert fleeting information into long-term memory. The findings suggest that alternating between REM and slow-wave sleep stages is crucial for strong memory formation.
Researchers at MIT have developed a new method that uses optics to accelerate machine-learning computations on low-power devices. By encoding model components onto light waves, data can be transmitted rapidly and computations performed quickly, leading to over a hundredfold improvement in energy efficiency.
Researchers at Trinity College Dublin discovered that quantum computation may be used by the human brain, correlating with short-term memory performance and conscious awareness. This finding could enhance our understanding of brain functions and potentially lead to innovative technologies.
Researchers identified a kinase molecule that directs microglia activity, potentially treating neurodegenerative diseases like Alzheimer's and MS. The molecule, called spleen tyrosine kinase, targets plaque buildup and debris accumulation in the brain.
Researchers at Lancaster University found that 3D printed flavor-based cues can stimulate rich sensory accounts and strong emotional connections in older adults, recalling memories from their youth. This technology has potential applications for dementia care, allowing individuals to relive cherished moments through the power of smell.
Researchers developed a new technique that enables on-device training using less than a quarter of a megabyte of memory, reducing the need for powerful computers and central servers. This approach preserves privacy by keeping data on the device, making deep learning more accessible for low-power edge devices.
Researchers found significantly larger neurons in the brain's memory region of SuperAgers compared to cognitively average peers, individuals with early-stage Alzheimer's disease, and younger individuals. These larger neurons were spared from tau tangles, a hallmark of Alzheimer's disease, suggesting they may maintain structural integrity.
A study by Osaka Metropolitan University's Professor Shogo Makioka and colleagues investigates embodied cognition mechanisms in the brain. The researchers found that when participants' hands were restrained, brain activity related to semantic processing of words decreased, and verbal responses became slower. These findings support the ...