可操作的预测作为生物适应的决定因素
Jose M G Vilar1,2, Leonor Saiz3
1Biofisika Institute (CSIC, UPV/EHU) and Department of Biochemistry and Molecular Biology, University of the Basque Country UPV/EHU, P.O. Box 644, Bilbao, 48080, Spain.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|February 28, 2025
概括
生物系统通过追踪可操作的目标来适应不断变化的环境,而不仅仅是预测未来. 这种非预测性的策略,在不可靠的条件下得到预测机制的增强,为生物适应提供了新的见解.
科学领域:
- 系统生物学 系统生物学
- 计算生物学 计算生物学
- 生物物理学的生物物理.
背景情况:
- 生物必须适应环境变化才能生存.
- 当前的模型往往强调适应的预测策略.
- 在精确的生物跟踪中,非预测机制的作用不太清楚.
研究的目的:
- 为了研究超越纯粹预测的替代适应策略.
- 为了证明生物系统如何精确地追踪最佳状态.
- 开发一个框架,以了解在动态和噪音环境中的适应.
主要方法:
- 开发了一个新的生物适应的数学框架.
- 使用动态信息的神经网络.
- 分析了当前最佳值及其变化率的整合.
主要成果:
- 生物系统可以通过使用非预测性可操作目标来追踪最佳状态.
- 预测机制在环境传感缓慢或不可靠时增强适应性.
- 基于动态信息的神经网络有效地捕捉了在噪音条件下的适应.
结论:
- 生物适应可以通过整合当前状态和变化速度的非预期控制来实现.
- 预测策略是有益的,但并不总是必要的精确适应.
- 这些发现重新定义了适应策略,并为适应性生物分子电路的设计提供了信息.
相关概念视频
Natural Selection and Adaptation
154
Natural selection, a fundamental concept in evolutionary biology, is the mechanism by which evolution is driven, favoring organisms that are best adapted to their environments. This process enhances their chances of survival and reproduction. Adaptation, a key outcome of this process, involves genetic modifications that optimize an organism's functionality under specific environmental challenges, such as extreme cold or thinner air at high altitudes.
Beyond physical adaptations,...
Beyond physical adaptations,...
154
Steps in Outbreak Investigation
102
In the ever-evolving field of public health, statistical analysis serves as a cornerstone for understanding and managing disease outbreaks. By leveraging various statistical tools, health professionals can predict potential outbreaks, analyze ongoing situations, and devise effective responses to mitigate impact. For that to happen, there are a few possible stages of the analysis:
102
Fixed Action Patterns
15.8K
A fixed action pattern (FAP) is a specific, hard-wired sequence of behaviors that occurs in response to an external stimulus, called a sign stimulus. The behavior is “fixed” because it is essentially unchangeable—proceeding similarly across individuals of a species every time it occurs.
15.8K
What is Natural Selection?
114.2K
Natural selection is an evolutionary process in which individuals with survival-promoting traits reproduce at higher rates. These favorable traits become more common within a population or species. Naturally selected traits initially arise via random genetic mutations. In order for selection to occur, there must be variation within a population, the trait controlling the variation must be heritable, and there must be an evolutionary advantage for variation in the trait.
114.2K
Evolutionary Psychology
217
Evolutionary psychology explores the origins of human behavior and mental processes by framing them within the context of natural selection, a theory famously propounded by Charles Darwin. This field asserts that many behaviors common across human societies — ranging from instinctive fear reactions to complex social interactions — arose as evolutionary adaptations. These adaptations enhanced the survival and reproductive success of our ancestors, thereby becoming embedded in the...
217
Biological Clocks and Seasonal Responses
34.5K
The circadian—or biological—clock is an intrinsic, timekeeping, molecular mechanism that allows plants to coordinate physiological activities over 24-hour cycles called circadian rhythms. Photoperiodism is a collective term for the biological responses of plants to variations in the relative lengths of dark and light periods. The period of light-exposure is called the photoperiod.
34.5K


