在两个人群的神经网络中,集体动态和射击噪声引起的切换
S Yu Kirillov1, P S Smelov1, V V Klinshov1,2
1Institute of Applied Physics of the Russian Academy of Sciences, Ulyanova Street 46, Nizhny Novgorod 603950, Russia.
Chaos (Woodbury, N.Y.)
|May 8, 2024
概括
神经质量模型模拟神经群体,但可能与微观系统有所不同. 有限大小的效应或射击噪声可能会导致差异,导致神经网络模拟中的模糊动力学或变态稳定状态.
科学领域:
- 计算神经科学是一种计算神经科学.
- 理论神经科学理论神经科学
- 复杂系统分析 复杂系统分析
背景情况:
- 神经质量模型 (NMM) 对于模拟大规模的神经网络和全脑活动至关重要.
- 了解相互连接的神经群体的动态对于神经科学至关重要.
研究的目的:
- 执行一个系统的双分支分析的两个人口 (刺激性-抑制性) 神经质量模型.
- 研究复杂的集体行为的出现,如混乱的振荡和多稳定性.
- 将NMM的动态与相应的显微系统进行比较,并确定差异的来源.
主要方法:
- 结合激发-抑制神经质量模型的系统分支分析.
- 将NMM动态与精确的微观模拟进行比较.
- 通过有限尺寸效果和射击噪声的镜头来解释差异.
主要成果:
- 确定了复杂集体行为出现的场景,包括混乱的振荡和多稳定性.
- 证明NMM动态可能与微观系统不完全一致.
- 将差异解释为由有限大小限制引起的射击噪声效应.
结论:
- 射击噪声可以显著影响NMM动态,模糊吸引力或诱导转移稳定性.
- 这些发现突出了NMM在准确捕捉神经群体动态的所有方面的潜在局限性.
- 需要进一步的研究来完善NMM以考虑有限尺寸效应并提高模拟准确性.
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