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Topic: engrams

Seminar
2 seminars

In Cognition and Neuroscience

Seminar · Computational Neuroscience

Neural mechanisms of memory linking and replay: inhibition matters

Tomoki Fukai · Okinawa Institute of Science and Technology

Wed, May 14, 2025 · 15:00 UTC

My talk will consist of three subtopics. The brain remembers episodes not in isolation but with their contextual relationships, such as spatial or temporal proximity. This is an essential feature of the brain’s memory, but the underlying mechanism is yet to be explored. Cell assemblies, or engrams, may provide neural representations for such relationships. First, I will show a class of associative memory models that encode and retrieve multiple memory contents linked by an arbitrary graph structure through experience and demonstrate the crucial role of the balance between two inhibitory subnet

Seminar · Neuroscience

Making memories in mice

Sheena Josselyn · The Hospital for Sick Children

Thu, Jul 1, 2021 · 16:00 UTC

Understanding how the brain uses information is a fundamental goal of neuroscience. Several human disorders (ranging from autism spectrum disorder to PTSD to Alzheimer’s disease) may stem from disrupted information processing. Therefore, this basic knowledge is not only critical for understanding normal brain function, but also vital for the development of new treatment strategies for these disorders. Memory may be defined as the retention over time of internal representations gained through experience, and the capacity to reconstruct these representations at later times. Long-lasting physical