首页> 外文会议>Computational Neuroscience Meeting (CNS'01) Jul, 2001 Monterey, California >Effects of short-time plasticity on the associative memory
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Effects of short-time plasticity on the associative memory

机译:短时可塑性对联想记忆的影响

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We study how short-time synaptic plasticity influences the performance of associative memory networks. By mean-field analysis and numerical simulations it is shown that under appropriate rescaling of the firing threshold, the synaptic dynamics does not alter the retrieval states but affects their stability, resulting in a lower storage capacity in the case of depression. Beyond the storage capacity, the network operates in an oscillatory regime which is not observed in networks with static connections. We also found that dynamical properties of synapses and their heterogeneity can be useful for switching between memory states and the storage of pattern sequences.
机译:我们研究短时突触可塑性如何影响联想记忆网络的性能。通过均值场分析和数值模拟表明,在适当调整点火阈值的情况下,突触动力学不会改变恢复状态,但会影响其稳定性,从而在抑郁的情况下导致较低的存储容量。除了存储容量之外,网络还处于振荡状态,这在具有静态连接的网络中没有观察到。我们还发现,突触的动态特性及其异质性可用于在记忆状态和模式序列的存储之间进行切换。

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