Articles tagged with Ca1 Cells
A recent study in mice reveals a shared hub of memory cells that links incoming and outgoing signals, allowing the brain to reuse some cells to store many different memories. This 'switchboard' helps maintain stability while learning new information.
Researchers at USC have identified four distinct layers of specialized cell types in the CA1 region of the mouse hippocampus, a structure vital for memory formation. This discovery changes our understanding of how information is processed in the brain and could explain why certain cells are more vulnerable in diseases like Alzheimer's ...
A Cornell University study finds that sleep resets vital brain function by silencing certain parts of the hippocampus, allowing neurons to reset and enable new learning. This mechanism could lead to breakthroughs in boosting memory and erasing negative memories in conditions like Alzheimer's disease and PTSD.
Researchers have discovered a new type of brain cell in the medial entorhinal cortex that accurately predicts future locations as an animal travels. This discovery helps explain how planned spatial navigation is possible and has important implications for understanding mechanisms of spatial navigation and episodic memory formation.
Researchers at the Institute for Basic Science have identified specific neurons in the hippocampus that allow us to recognize individual social counterparts and update their value through interactions. The dorsal CA1 region plays a crucial role in this process, enabling long-term memories of individuals to be formed.
A new study found that neurons in a key brain region have different functions based on their genetic identity, which could lead to better understanding of the brain's computational flexibility and memory capacity. The diversity of neurons in the CA1 region of the hippocampus was previously unknown and is crucial for memory development.
Researchers found that stressed mice exhibited decreased neuron excitability in the dorsal hippocampus, which may drive social avoidance, while resilient mice showed increased excitability. This difference was linked to changes in stress hormone receptors and HCN1 protein expression.
Researchers at KIST Brain Science Institute and NYU discovered that hippocampus uses distinct information processing mechanisms to encode spatial information, including rate code and phase code. This understanding can improve diagnosis and treatment of brain disorders like Alzheimer's and amnesia, as well as inspire AI advancements.
A study from MIT neuroscientists has identified a hippocampal circuit that stores information about the timing of events, allowing mice to remember when to turn left or right in a maze. Disrupting this circuit impaired their ability to remember direction, but not location.
Researchers at Osaka University found that Polβ prevents DNA breaks in brain cells of the hippocampus during early postnatal development, supporting cognitive development. The study also reveals a link between DNA demethylation and increased double-stranded breaks, which can lead to altered gene expression and impaired memory formation.
Researchers have discovered that synchronization of brain neurons is critical for establishing fear memories, which can become too strong in people with PTSD. The study found that synchronized neurons are more likely to be recalled from memory.
Researchers found sets of cells in the hippocampus activated during similar types of experiences, such as trying new foods or visiting a restaurant. These 'lap-encoding cells' are distinct from memory cells that store specific locations and may help the brain interpret novel situations and learn new information.
Researchers at Stanford University School of Medicine found a way to improve neuron recovery in rats by blocking a molecule that controls genetic instructions. The approach, if applied to humans, may help patients with stroke, cardiac arrest, or major blood loss recover memory functions.
Researchers have pinpointed a type of cell that helps the brain navigate and remember important locations, providing insight into psychiatric disorders. The discovery focuses on VIP-expressing cells in the hippocampus, which play a key role in directing flexibility in brain activity.
A new study reveals that the protein RGS14 functions as a molecular brake on learning and memory by regulating calcium levels in the hippocampus. The researchers found that RGS14 limits plasticity in CA2 neurons, which are less adaptable than neighboring CA1 neurons.
Researchers discovered 'event cells' in the hippocampus that represent sequences of events, facilitating episodic memory. The study found that the brain's theta cycle phase precession plays a crucial role in organizing these event sequences.
Research from RIKEN Brain Science Institute in Japan identifies the brain clock that keeps memories organized across time. Without CA3 input, the neural orchestra loses its conductor, leading to errors in representing space and impairing accurate prediction of spatial location.
Researchers discovered a key brain circuit responsible for using past experiences to guide decision-making in rats. The circuit involves coordinated activity between the hippocampus and prefrontal cortex during awake mental replay of past experiences.
A brain circuit has been identified that processes the 'when' and 'where' components of memory, separating location and timing into two streams of information. This discovery sheds light on how the brain represents time and place in episodic memories.
Scientists have found that neurons in a little-studied part of the brain become more active with age, leading to potential new treatments for memory loss and Alzheimer's disease. The study suggests that future therapies will need to account for different effects across various brain regions.
Researchers have identified a previously unknown circuit that suppresses the monosynaptic circuit, allowing for longer time-linked memories to be formed. This discovery sheds light on how the brain balances fear and caution in response to sequential events.
Researchers discovered a new brain circuit that shapes memory formation by endowing neurons with the ability to connect two events separated in time into a single experience. Island cells, found in the entorhinal cortex, project to the hippocampus and suppress the formation of temporal associations.
Scientists have identified a natural protection mechanism in some brain nerve cells during stroke, which could be used to develop treatments to protect other nerve cell types. The research found that one type of nerve cell, the CA3 cell, is more resistant to stroke-induced damage and possesses a mechanism for reducing its susceptibility.
Researchers have found that neurons integrate synaptic inputs locally before sending signals to the central axon, similar to how electoral votes contribute to a president's election. The study suggests a two-stage model of dendritic integration, which could lead to better understanding of brain processes like learning and memory.
Researchers at the University of Bristol and MIT have discovered a key role for the dentate gyrus in rapid place recognition, which may help alleviate confusion among elderly individuals. The study's findings could also inform therapies for learning and behavioral disorders.