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Adaptive Latent Inhibition in Associatively Responsive Optoelectronic Synapse

机译：缔合响应光电突触的适应性潜在抑制

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摘要

The association of stimuli is an important attribute in the neural basis of learning and memory. While the acquisition and extinction of association through conditioning are well emulated in artificial synaptic devices, the alteration of conditioning efficacy, which enables adaptability in learning, has yet to be demonstrated. A distinctive feature of latent inhibition is that the pre-exposure to a neutral stimulus would suppress its subsequent associative pairing with a biologically salient counterpart. This presents an adaptive advantage in suppressing the learning efficacy of irrelevant stimuli, focusing attention only on relevant cues. Given the significant impact of the regulatory function in biological synapses, an associatively responsive optoelectronic synapse based on oxide Schottky interface capable of emulating latent inhibition is demonstrated. While optical programming based on photo-assisted charge detrapping emulates the biologically salient stimulus, electrical modification acts as neutrally stimulating cues, capable of altering subsequent carrier recombination dynamics. The electrical-optical coupling is leveraged to implement inhibition and facilitation of synaptic plasticity. Subsequently, the adaptability in conditioning to regulate information uptake is demonstrated via latent inhibition. Distinct from conventional optoelectronic synapses, the proposed synaptic device offers significant advantages in adaptability in learning with an electrically tunable optical memory.
机译：刺激协会是学习和记忆的神经基础的重要属性。虽然通过调节的收购和灭绝通过调理在人工突触装置中仿真，但是在学习方面可以适应调节功效的改变尚未得到证明。潜伏抑制的独特特征是对中性刺激的预暴露将抑制其随后的缔合配对与生物显着的对应物。这提出了一种适应性的优势，用于抑制无关刺激的学习效果，仅关注相关性提示。鉴于对生物突触中的调节功能的显着影响，证明了基于能够模拟潜伏抑制的氧化物肖特基界面的缔合的响应光电突触。虽然基于光辅助电荷旋转的光学编程模拟了生物学显着刺激，但是能够作为中性刺激线索的电气改性，能够改变后续载体重组动态。利用电光耦合以实现突触可塑性的抑制和促进。随后，通过潜伏抑制证明了调节信息摄取的调节中的适应性。与传统的光电突触不同，所提出的突触装置在使用电动光学存储器的学习方面具有显着的优点。

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