Research Keyword: learning

Selective consolidation of learning and memory via recall-gated plasticity

Our brains use two memory systems working together: a quick short-term system and a slower long-term system. This study explains how the brain smartly decides which memories are worth storing long-term. The key is that memories get consolidated into long-term storage only when the short-term system can strongly recall them, which filters out unreliable or false memories. This recall-gated mechanism lets the brain remember important information better while ignoring noise and distractions.

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The cellular architecture of memory modules in Drosophila supports stochastic input integration

Scientists created a detailed computer model of a memory-processing neuron in the fruit fly brain to understand how memories are stored and recalled. The study found that the neuron’s design allows it to store many different memories using random connections from input neurons, similar to how a brain might encode multiple learned experiences. This research reveals that memories can be efficiently stored without requiring precise positioning of individual neural connections, suggesting the brain uses flexibility and randomness as computational strategies.

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Optogenetic induction of appetitive and aversive taste memories in Drosophila

Fruit flies can learn to like or dislike tastes based on experience, much like humans do. Scientists used light-activated neurons to create new taste memories in flies, showing that taste preferences are not fixed but can change when paired with rewards or punishments. The study reveals that taste memory formation uses similar brain mechanisms and energy requirements as odor memory, suggesting that both senses depend on experience to shape preferences.

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