Environmental-gradient emotional memory memristive neural network circuit with TAP cell regulatory mechanism

doi:10.1088/1674-1056/ae4f72

Abstract The hippocampus and amygdala in the human brain play a crucial role in the processing of emotion and memory. Specifically, the hippocampus encodes environmental information along with its corresponding emotional states, whereas the amygdala integrates emotional stimuli from the environment into the hippocampal memory system. Inspired by this biological mechanism and based on the principle of regulating cellular excitability within the mouse transient amplifying progenitor (TAP) mechanism, this study proposes an environmental-gradient emotional memory memristive neural network circuit. This bio-inspired neuromorphic circuit consists of two main modules: a hippocampal module and an amygdala module. The hippocampal module comprises two sub-modules: the environmental recognition neuron and the emotion generation neuron. The environmental recognition neuron is responsible for memorizing environmental features, while the emotion generation neuron establishes mapping relationships between the environment and emotional states. The amygdala module combines external emotional stimuli with internal current emotional stimuli to generate a comprehensive emotional assessment of the environment, and this emotional state can be stored. This memristive neural network circuit facilitates dynamic coupling between emotion and the environment, with the emotional output being continuous and graded rather than discrete. In PSPICE simulations, the proposed circuit exhibits satisfactory and stable functional performance. The findings of this study can offer valuable insights for the design of neuromorphic hardware circuits and for emotion simulation in bio-inspired robots.

Keywords: memristive neural network circuit environmental-gradient emotional memory TAP cell regulatory mechanism

Received: 24 January 2026
Revised: 06 March 2026
Accepted manuscript online: 10 March 2026

PACS:	87.19.ll	(Models of single neurons and networks)
	87.19.lv	(Learning and memory)
	87.19.lw	(Plasticity)
	84.35.+i	(Neural networks)

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 61901169 and 61804037) and the Natural Science Foundation of Hunan Province (Grant No. 2024JJ5267).

Corresponding Authors: Qiuzhen Wan
E-mail: wanqiuzhen@sina.com

Cite this article:

Peng Qin(秦鹏), Tieqiao Liu(刘铁桥), Qiuzhen Wan(万求真), Rou Zhou(周柔), and Huaimin Xiang(向怀民) Environmental-gradient emotional memory memristive neural network circuit with TAP cell regulatory mechanism 2026 Chin. Phys. B 35 068709

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Environmental-gradient emotional memory memristive neural network circuit with TAP cell regulatory mechanism

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