适应性行为的神经机制:解离局部皮质调制和区域间通信模式
Nasibeh Talebi1, Astrid Prochnow1, Christian Frings2
1Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Faculty of Medicine, TU Dresden, 01309 Dresden, Germany.
iScience
|December 5, 2024
概括
适应性行为涉及灵活的大脑网络重新配置. 这项研究发现,在抑制控制期间,theta和alpha-theta网络的通信减少,这与更好的行为适应有关.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 计算神经科学是一种神经科学.
背景情况:
- 适应性行为需要灵活管理感知和运动过程.
- 虽然在适应过程中已知theta和alpha波段的局部大脑活动变化,但区域间的通信仍然不太了解.
- 抑制性控制在很大程度上依赖于适应性行为来成功调节.
研究的目的:
- 在抑制性控制中重新配置知觉-动作关联期间调查定向的大脑连接性.
- 探索神经通信的作用,特别是在theta和alpha频段,在适应性行为过程中.
- 将神经网络动态与行为结果联系起来,例如错误率.
主要方法:
- 利用机器学习方法检查大脑区域之间的定向连接.
- 在抑制控制任务期间分析了theta和alpha频段的神经活动.
- 感知-行动关联和相关错误率的测量重新配置.
主要成果:
- 在适应性重新配置过程中观察到局部活动增加,但在temporo-occipital teta带网络内连接性下降.
- 在重新配置过程中识别了前后骨alpha-theta网络内的定向连接性下降.
- 发现,前-后的α-theta连接性下降与较低的行为错误率相关.
结论:
- 适应性行为取决于局部神经活动调制和改变的区域间通信.
- 在抑制性控制期间,特定的和α-网络的连接性降低对于成功的感知-动作重新配置至关重要.
- 这些发现挑战了现有的模型,强调了减少神经通信对适应过程的重要性.
相关概念视频
Neuroplasticity
295
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.
295
Neuronal Communication
785
Neurons, the fundamental units of the brain and nervous system, communicate through complex electrochemical signals that underpin all cognitive and bodily functions. This communication is primarily facilitated by a process involving the generation and propagation of an action potential along the axon of the neuron. When the internal electrical charge of a neuron surpasses a certain threshold, an action potential is triggered. This rapid change in voltage travels swiftly along the axon to the...
785
Neural Circuits
1.0K
Neural circuits and neuronal pools are two of the main structures found in the nervous system. Neural circuits are networks of neurons that work together to carry out a specific task or process. They consist of interconnected neurons and glial cells, which provide structural and metabolic support.
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
1.0K
Introduction to Biological Bases of Psychology
3.2K
Biopsychology serves as a vital bridge connecting the intricate domains of biology and psychology, shedding light on how biological systems influence psychological phenomena. This field scrutinizes the biological substrates of behavior and mental processes, emphasizing the nervous system along with the roles of neurotransmitters, hormones, and genetics. It also incorporates evolutionary perspectives to explain the adaptive nature of mental functions.
The nervous system, the cornerstone of...
The nervous system, the cornerstone of...
3.2K
Somatosensory, Motor, and Association Cortex
406
The somatosensory cortex in the parietal lobes is crucial for interpreting sensory data such as touch, temperature, and proprioception. The somatosensory cortex, situated in the parietal lobes, plays a vital role in interpreting sensory information like touch, temperature, and proprioception—awareness of body position. This specialized brain region features an organized structure wherein neurons at the top primarily process sensations originating from the lower body. In contrast, those at...
406
Motor and Sensory Areas of the Cortex
2.9K
The cerebral cortex, the brain's outermost layer, is pivotal in processing complex cognitive tasks, emotions, and various sensory inputs and executing voluntary motor activities. This intricate structure is divided into three primary functional areas: the motor areas, sensory areas, and association areas.
Motor Areas
The motor areas located in the frontal lobe are central to controlling voluntary movements. This region is further subdivided into the primary motor cortex and the premotor...
Motor Areas
The motor areas located in the frontal lobe are central to controlling voluntary movements. This region is further subdivided into the primary motor cortex and the premotor...
2.9K


