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  • Sep 11, 2017
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Youngjin Park published a paper in “Scientific Reports”, “Symmetry of learning rate in synaptic plasticity modulates formation of flexible and stable memories”

 

Article:

Park, Youngjin, Woochul Choi, and Se-Bum Paik. "Symmetry of learning rate in synaptic plasticity modulates formation of flexible and stable memories." Scientific Reports 7 (2017).

 

Abstract:

Spike-timing-dependent plasticity (STDP) is considered critical to learning and memory functions in the human brain. Across various types of synapse, STDP is observed as different profiles of Hebbian and anti-Hebbian learning rules. However, the specific roles of diverse STDP profiles in memory formation still remain elusive. Here, we show that the symmetry of the learning rate profile in STDP is crucial to determining the character of stored memory. Using computer simulations, we found that an asymmetric learning rate generates flexible memory that is volatile and easily overwritten by newly appended information. Moreover, a symmetric learning rate generates stable memory that can coexist with newly appended information. In addition, by combining these two conditions, we could realize a hybrid memory type that operates in a way intermediate between stable and flexible memory. Our results demonstrate that various attributes of memory functions may originate from differences in the synaptic stability.

 

 

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제목 날짜
Youngjin Park, won the best presentation award at 2018 KSBNS   2018.08.31
Hyeonsu Lee won the best TA award   2018.08.31
Woochul Choi won the best poster award at 2018 Korean society for cognitive science   2018.06.07
Congrats! Gwangsu Kim won the best poster award at KPS 2018 spring meeting   2018.05.11
Congrats! Jaeson Jang won the Best Student Poster Award at CNS 2017   2017.09.11
Congrats! Min Song & Hyeonsu Lee won poster awards at CBrain 2017   2017.09.11
Congrats! Hyeonsu Lee won the Best Presentation Award at KSBNS   2017.09.11
Congrats! Youngjin Park published a paper in “Scientific Reports”   2017.09.11
Congrats! Professor Se-Bum Paik published a paper in “Neuron” as a co-author   2017.09.11
Youngjin Park, won the best presentation award at 2018 KPS   2017.06.23
Domestic Patent: SPIKING NEURAL NETWORK SYSTEM FOR DYNAMIC CONTROL OF FLEXIBLE, STABLE AND HYBRID MEMORY STORAGE   2017.06.23
Intelligent Brain 2016   2016.08.29
KAIST Neural Code Workshop   2016.08.29

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