A neural circuit is a population of neurons interconnected by synapses to carry out a specific function when activated. [1] Multiple neural circuits interconnect with one another to form large scale brain networks. [2] Neural circuits have inspired the design of artificial neural networks, though there are significant differences.

2009年9月30日 · To contextualize the developmental origins of a wide array of neuropsychiatric illnesses, this review describes the development and maturation of neural circuits from the first synapse through...

We have 86 billion neurons in our brains, and they’re connected to each other, each neuron has about 10,000 inputs, connections. So, the circuit is the path that the electrical activity follows as it moves from one nerve cell to the next, to the next, to the next.

These three classes—afferent neurons, efferent neurons, and interneurons—are the basic constituents of all neural circuits. Neural circuits are both anatomical and functional entities. A simple example is the circuit that subserves the myotatic (or “knee-jerk”) spinal reflex .

2021年9月3日， 骆利群 教授* 在 Science 上发表了题为 “ Architectures of neuronal circuits ” 的最新综述文章，从神经环路的角度综述了这几十年来利用示踪、生理记录、功能干扰和计算模型等不同技术研究的神经元之间不同的连接模式和功能，并讨论了这些环路结构在发育和分化的过程中可能出现的情况，为我们提供了又一全面系统的神经环路知识总结。 *编者注. 骆利群（Liqun Luo），神经生物学家、美国艺术与科学学院院士、美国国家科学院院士、斯坦福大学教授。 …

4 天之前 · a, The MICrONS Consortium 2, 11, 13 – 17 recorded neuronal activity from the brain of an awake and active mouse as it was shown videos to stimulate a brain region called the visual cortex.

2024年9月12日 · Although the role of amygdalar circuits in aversive processing is well established, the neural pathway for amplifying aversion remains elusive. Here, we show that the brainstem circuit linking the interpeduncular nucleus (IPN) with the nucleus incertus (NI) amplifies aversion and promotes avoidant behaviors.

4 天之前 · Researchers have created the largest and most detailed wiring diagram of a mammalian brain to date, by mapping cells in a cubic millimetre of a mouse’s brain tissue 1. In a landmark achievement ...

2 天之前 · Brain organoid and assembloid models can recapitulate some of the neural circuits observed in vivo and display electrophysiologically active neurons and synapses. Advances in organoid protocols have eliminated some major limitations and have improved the applicability of organoid models for studying aging and neurodegenerative conditions.

2024年9月30日 · But what exactly are brain circuits? Think of them as the brain’s electrical wiring system, composed of interconnected neurons that form specific pathways. These pathways carry signals from one part of the brain to another, creating a complex web of communication that underpins all of our mental processes.