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研究领域生物科学动物学动物的行为
神经景观扩散解决了跨时间需求之间的冲突

神经景观扩散解决了跨时间需求之间的冲突

Ethan B Richman ¹, Nicole Ticea ^2,3,4, William E Allen ^1,5, Karl Deisseroth ^6,7,8, Liqun Luo ^9,10

Ethan B Richman ¹, Nicole Ticea ^2,3,4, William E Allen ^1,5

¹Neurosciences Graduate Program, Stanford University, Stanford, CA, USA.
²Department of Bioengineering, Stanford University, Stanford, CA, USA.
³Department of Biology, Stanford University, Stanford, CA, USA.
⁴Department of Applied Physics, Stanford University, Stanford, CA, USA.
⁵Society of Fellows, Harvard University, Cambridge, MA, USA.
⁶Department of Bioengineering, Stanford University, Stanford, CA, USA. deissero@stanford.edu.
⁷Department of Psychiatry and Behavioral Sciences, Stanford, CA, USA. deissero@stanford.edu.
⁸Howard Hughes Medical Institute, Stanford University, Stanford, CA, USA. deissero@stanford.edu.
⁹Department of Biology, Stanford University, Stanford, CA, USA. lluo@stanford.edu.
¹⁰Howard Hughes Medical Institute, Stanford University, Stanford, CA, USA. lluo@stanford.edu.

⁰Neurosciences Graduate Program, Stanford University, Stanford, CA, USA.

Nature +

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2023年十一月8日

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在PubMed上查看摘要

概括

此摘要是机器生成的。

通过保持持续的内在目标状态来解决矛盾的生理需求, 噪音驱动的转变允许这些行为目标之间随着时间的推移而发生转变.

科学领域

神经科学
行为生物学
计算神经科学

背景情况

动物表现出灵活的目标导向行为来满足生理需求.
在相互矛盾的需求下,选择行为之间的机制尚不清楚.

研究的目的

揭示大脑如何解决与生理需求之间的冲突.
识别基于单元行为选择的神经原则.

主要方法

开发了一个实验模式, 饥渴的小鼠在食物和水之间做出选择.
使用高密度电生理记录来捕捉神经活动.
建立了一个数学模型来模拟需求状态动态和行为选择.

主要成果

鼠标将选择组织成持续的发作, 在需求之间进行随机转换.
确定了持续的内部目标状态的分布式神经相关性.
数学模型成功预测了行为和神经动态, 包括对光遗传刺激的反应.

结论

大脑通过需求依赖状态的新兴特性来解决需求冲突.
噪音驱动的状态转换促进了相互竞争的行为目标之间的转换.
提供了理解在冲突需求下的目标导向行为的一般框架.

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相关概念视频

Neuroplasticity

Neuroplasticity

Neuroplasticity reflects the brain's remarkable capacity to adapt and evolve, responding dynamically to learning, experiences, or injury by reorganizing its neural circuitry. This reorganization involves creating new neural connections and refining old ones through a series of biological processes that contribute to the brain's lifelong development and adaptability.

• The brain's ability to change begins with the growth of dendrites and axons, which effectively increases the...

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