论文标题
通过利基结构外包记忆
Outsourcing Memory Through Niche Construction
论文作者
论文摘要
适应不断变化的环境是生活的普遍特征，可以涉及生物体对环境的响应以及积极修改环境以控制选择压力的生命。后一种情况将有机体融入环境。然后，生物体应对环境的响应速度应多快？当记忆与遗忘时，记忆持续时间如何以环境变化的速度来提出这个问题。考虑到内存精度以及环境波动，偏见和稳定性的两个组成部分，我们为最佳记忆持续时间提供了通用缩放定律。我们发现具有任何数量的环境波动率的额定性缩放。我们使用一种记忆复杂度度量来探索积极地降低环境波动的战略条件（游戏动力） - 通过利基结构外包记忆 - 而不是投资神经组织。我们预测，当神经组织成本高昂，环境是可变的，能够编码丰富的环境状态曲目是有益的。
Adaptation to changing environments is a universal feature of life and can involve the organism modifying itself in response to the environment as well as actively modifying the environment to control selection pressures. The latter case couples the organism to environment. Then, how quickly should the organism change in response to the environment? We formulate this question in terms of how memory duration scales with environmental rate of change when there are trade-offs in remembering vs. forgetting. We derive a universal scaling law for optimal memory duration, taking into account memory precision as well as two components of environmental volatility, bias and stability. We find sublinear scaling with any amount of environmental volatility. We use a memory complexity measure to explore the strategic conditions (game dynamics) favoring actively reducing environmental volatility -- outsourcing memory through niche construction -- over investing in neural tissue. We predict stabilizing niche construction will evolve when neural tissue is costly, the environment is variable, and it is beneficial to be able to encode a rich repertoire of environmental states.
