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Memory

This shows a brain surrounded by old objects.

·June 26, 2024·5 min read

Discovery of Memory “Glue” Explains Lifelong Recall

A new study reveals the role of the molecule KIBRA in forming long-term memories. Researchers found that KIBRA acts as a “glue,” binding with the enzyme PKMzeta to strengthen and stabilize synapses, crucial for memory retention. This discovery could lead to new treatments for memory-related conditions. The findings confirm a long-standing hypothesis about memory storage mechanisms.

Featured Neuroscience

·June 19, 2024·5 min read

Time Cells Play Key Role in Learning Complex Tasks

New research reveals that "time cells" in the brain, crucial for learning complex behaviors requiring precise timing, are not just simple timekeepers. These cells adapt their firing patterns as mice learn to distinguish between differently timed events, suggesting a more complex role in processing temporal information. This discovery could aid in early detection of neurodegenerative diseases like Alzheimer's.

Featured Neuroscience

·June 18, 2024·7 min read

Keto Diet Boosts Memory in Aging

A new study reveals how a ketogenic diet, high in fat and low in carbohydrates, improves memory in aging mice. Researchers found that the diet triggers a molecular signaling pathway that enhances synapse function, leading to improved memory. This discovery could pave the way for new therapies targeting memory without the need for dietary changes.

Featured Neuroscience

·June 13, 2024·5 min read

Sleep or Cram? Sleep is Key for Memory Retention

Sleep is crucial for memory formation, while sleep deprivation severely disrupts this process. Neurons in the hippocampus reactivating during sleep help to consolidate memories, but this reactivation is impaired without proper rest. These findings highlight the importance of sleep for effective learning and memory retention.

This shows a face covered in different colored paints.

Featured Neuroscience Visual Neuroscience

·June 13, 2024·6 min read

Facial Expressions Alter Memory of Color

Facial expressions influence memory color effect, with angry and fearful faces more strongly affected than neutral faces. Participants perceived achromatic angry and fearful faces as red-yellow, indicating that expression impacts color memory. This research highlights how emotions and memory color are interconnected. Future studies aim to explore attention toward different facial expressions and colors.

Featured Neuroscience

·June 12, 2024·7 min read

How Brain Maps Memories Without Movement

Mental maps in the brain are activated when thinking about sequences of experiences, even without physical movement. In an animal study, they found that the entorhinal cortex harbors a cognitive map of experiences, which is activated during mental simulation. This is the first study to show the cellular basis of mental simulation in a nonspatial domain. The findings could enhance our understanding of brain function and memory formation.

Featured Neuroscience Psychology

·June 11, 2024·6 min read

Depression Impacts Memory Decline

Depressive symptoms and memory decline in older adults are closely linked, each influencing the other. Using 16 years of data from 8,268 adults, researchers found that depression can precede memory decline, and poor memory can lead to increased depressive symptoms.

Featured Neuroscience

·June 7, 2024·5 min read

Brain’s Oxygen Deprivation Mechanism Hinders Memory Formation

Oxygen deprivation in the brain triggers a feedback loop involving glutamate and nitric oxide, causing anoxia induced long-term potentiation (aLTP). This process disrupts regular memory-enhancing mechanisms, potentially explaining memory loss post-stroke. The study offers insights into treating memory problems in stroke patients.

Featured Neuroscience

·June 7, 2024·6 min read

Brain Circuit Key to Learning from Negative Experiences Identified

Researchers identified brain regions and neuron types crucial for learning from negative experiences. They found that inhibitory neurons in the horizontal limb of the diagonal band of Broca (HDB) play a significant role in this process.

Featured Neuroscience Visual Neuroscience

·June 4, 2024·4 min read

Underutilized Visual Memory: We Recall Less Than We Can

People often underuse their visual working memory (VWM), typically remembering fewer items than their capacity allows. Participants in the study usually chose to recall just one item at a time, despite being able to remember 3-4 items.

Featured Neuroscience Psychology

·June 4, 2024·2 min read

Stress Hinders Cognitive Gains from Mental Activities

A new study found that mentally stimulating activities improve cognition in memory clinic patients, but stress undermines these benefits. Higher cognitive reserve enhances cognition, but physiological stress reduces this positive effect. This research suggests that stress management techniques, such as mindfulness and meditation, could complement Alzheimer's prevention strategies.

This shows a brain as a top of a burger bun.

Featured Neuroscience

·June 2, 2024·4 min read

Brain Chemistry Sheds Light on Overeating and Memory

Fruit flies use the neurotransmitter octopamine to decide whether food memories are stored long-term or short-term. This process, influenced by energy reserves, affects future eating behavior. High glycogen levels result in stable food memories, prompting increased food intake even after fasting. The research suggests that similar mechanisms may influence overeating in humans.

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Memory

Discovery of Memory “Glue” Explains Lifelong Recall

Time Cells Play Key Role in Learning Complex Tasks

Keto Diet Boosts Memory in Aging

Sleep or Cram? Sleep is Key for Memory Retention

Facial Expressions Alter Memory of Color

How Brain Maps Memories Without Movement

Depression Impacts Memory Decline

Brain’s Oxygen Deprivation Mechanism Hinders Memory Formation

Brain Circuit Key to Learning from Negative Experiences Identified

Underutilized Visual Memory: We Recall Less Than We Can

Stress Hinders Cognitive Gains from Mental Activities

Brain Chemistry Sheds Light on Overeating and Memory

Chickadees Sneak Around for Brains, Not Just Brawn

Retinal Photos and AI Predict Early Alzheimer’s Risk

AI Voice Scams Weaponize Vocal Timbre to Trick Our Trust

Senescent Cells Are Essential for Building the Brain’s Barriers

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