A biophysically-based neuromorphic model of spike rate- and timing-dependent plasticity

A biophysically-based neuromorphic model of spike rate- and timing-dependent plasticity.

Current advances in neuromorphic engineering have made it possible to emulate complex neuronal ion channel and intracellular ionic dynamics in real time using highly compact and power-efficient complementary metal-oxide-semiconductor (CMOS) analog very-large-scale-integrated circuit technology. Recently, there has been growing interest in the neuromorphic emulation of the spike-timing-dependent...

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Spike timing dependent plasticity: mechanisms, significance, and controversies

Long-term modification of synaptic strength is one of the basic mechanisms of memory formation and activity-dependent refinement of neural circuits. This idea was purposed by Hebb to provide a basis for the formation of a cell assembly. Repetitive correlated activity of pre-synaptic and post-synaptic neurons can induce long-lasting synaptic strength modification, the direction and extent of whi...

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Spike timing dependent plasticity: mechanisms, significance, and controversies

Long-term modification of synaptic strength is one of the basic mechanisms of memory formation and activity-dependent refinement of neural circuits. This idea was purposed by Hebb to provide a basis for the formation of a cell assembly. Repetitive correlated activity of pre-synaptic and post-synaptic neurons can induce long-lasting synaptic strength modification, the direction and extent of whi...

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Neuromorphic Bistable VLSI Synapses with Spike-Timing-Dependent Plasticity

We present analog neuromorphic circuits for implementing bistable synapses with spike-timing-dependent plasticity (STDP) properties. In these types of synapses, the short-term dynamics of the synaptic efficacies are governed by the relative timing of the preand post-synaptic spikes, while on long time scales the efficacies tend asymptotically to either a potentiated state or to a depressed one....

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Circuits for bistable spike-timing-dependent plasticity neuromorphic VLSI synapses

We present analog neuromorphic circuits for implementing bistable synapses with spike-timing-dependent plasticity (STDP) properties. In these types of synapses, the short-term dynamics of the synaptic efficacies are governed by the relative timing of the preand post-synaptic spikes, while on long time scales the efficacies tend asymptotically to either a potentiated state or to a depressed one....

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A biophysically-based neuromorphic model of spike rate- and timing-dependent plasticity

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