Vanadium Dioxide Circuits Emulate Neurological Disorders [electronic resource]

• Ngôn ngữ: eng
• Ký hiệu phân loại: 612.8 Nervous system Sensory functions
• Thông tin xuất bản: Washington, D.C. : Oak Ridge, Tenn. : United States. Dept. of Energy. Office of Science ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2018
• Mô tả vật lý: Size: Article No. 856 : , digital, PDF file.
• Bộ sưu tập: Metadata
• ID: 260112
• Chủ đề: 1. 60 applied life sciences; 2. Artificial neurons; 3. Central nervous system diseases; 4. Hodgkin-huxley model; 5. Strongly correlated systems; 6. Vo2

Tóm tắt

 Information in the central nervous system (CNS) is conducted via electrical signals known as action potentials and is encoded in time. Several neurological disorders including depression, Attention Deficit Hyperactivity Disorder (ADHD), originate in faulty brain signaling frequencies. Here, we present a Hodgkin-Huxley model analog for a strongly correlated VO<
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  artificial neuron system that undergoes an electrically-driven insulator-metal transition. We demonstrate that tuning of the insulating phase resistance in VO<
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  threshold switch circuits can enable direct mimicry of neuronal origins of disorders in the CNS. The results introduce use of circuits based on quantum materials as complementary to model animal studies for neuroscience, especially when precise measurements of local electrical properties or competing parallel paths for conduction in complex neural circuits can be a challenge to identify onset of breakdown or diagnose early symptoms of disease.