The artificial replication of learning phenomena is an emerging domain with proven social impact. In this paper, we advance composite responsive material behavior toward learning by inducing memory-dependent functions through repeated exposure to a priming stimulus. For this, we integrate a photochromic spiropyran dopant into our liquid crystal network (LCN) to control its electrical actuation. UV light irradiation increases charge density by triggering the spiropyran-to-merocyanine zwitterion conversion, “gating” the permittivity of the LCN, and reducing the alternating electric field strength threshold required for actuation by up to 67.8% from its initial state. This UV-gating effect persists in the LCN as a memorized behavior. Resembling biological memory, the UV-gated memory is reversible and erased from the material over time. This is accelerated by up to 20% by irradiation with a green light “memory-wiping” agent. We envision that our work will contribute to the development of artificially intelligent materials for self-learning appliances and medical devices.

学习现象的人工复制是一个新兴领域，具有经过验证的社会影响。在本文中，我们通过反复暴露于启动刺激来诱导记忆依赖功能，从而推进复合响应材料行为的学习。为此，我们将光致变色螺吡喃掺杂剂集成到液晶网络（LCN）中以控制其电驱动。紫外光照射通过触发螺吡喃到部花青两性离子的转换、“门控”LCN的介电常数以及将驱动所需的交变电场强度阈值从初始状态降低高达67.8%来增加电荷密度。这种 UV 门控效应作为一种记忆行为持续存在于 LCN 中。与生物记忆类似，紫外线门控记忆是可逆的，并会随着时间的推移从材料中删除。通过绿光“记忆擦除”剂的照射，这一速度可加快 20%。我们希望我们的工作将为自学习设备和医疗设备的人工智能材料的开发做出贡献。