神经活动中的记忆:没有关键性的远程顺序
Jay K-C Sun1, Chesson Sipling1, Yuan-Hang Zhang1
1University of California San Diego, Department of Physics, La Jolla, California 92093-0319, USA.
Physical review. E
|January 21, 2026
概括
大脑可能会由于记忆而表现出远程顺序 (LRO),不一定是关键性. 这一发现挑战了关键性假设,因为它表明LRO可以来自神经模型中的缓慢资源动态.
科学领域:
- 神经科学是一个神经科学.
- 计算神经科学是一种神经科学.
- 复杂的系统复杂的系统.
背景情况:
- 关键性假设表明,大脑运行在一个关键的过渡点,由无尺度的神经活动证明.
- 在解释大脑功能的关键性假设的有效性仍在争论中.
- 神经活动模型经常探索相位过渡和新兴性质.
研究的目的:
- 调查神经活动中的远程顺序 (LRO) 是否可以在没有关键性的情况下出现.
- 在皮层动态模型中探索记忆 (时间非局部性) 在诱导LRO中的作用.
- 挑战神经系统中观察无尺度动态的关键性的必要性.
主要方法:
- 使用一种常见的皮层动态模型,具有明显的快速 (神经) 和缓慢 (资源/内存) 时间尺度.
- 分析了资源动态缓慢对神经活动模式的影响.
- 检查了雪崩大小和持续时间的概率分布,用于权力定律行为.
主要成果:
- 观察到一个由缓慢的资源动态 (内存) 诱导的远程顺序 (LRO) 阶段,独立于关键性.
- LRO表现为雪崩大小和持续时间中的权力规律分布.
- 这一LRO阶段在广泛的参数范围内被发现是稳健的,与典型的关键系统不同.
结论:
- 神经活动可以通过记忆效应 (时间非局部性) 显示长距离的顺序和权力规律统计数据,而无需在关键点上运行.
- 这项研究为产生神经模型中无尺度动态提供了批判性的替代机制.
- 研究结果表明,记忆动态在塑造新兴的神经活动模式方面起着至关重要的作用.
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