改变前运动和运动皮层之间的连接性改变了人类大脑中区域间的通信
Jelena Trajkovic1, Vincenzo Romei2, Matthew F S Rushworth3
1Centro studi e ricerche in Neuroscienze Cognitive, Dipartimento di Psicologia, Alma Mater Studiorum, Università di Bologna, Campus di Cesena, 47521 Cesena, Italy; Department of Cognitive Neuroscience, Faculty of Psychology and Neuroscience, Maastricht University, 6229 ER, Netherlands.
Progress in neurobiology
|June 23, 2023
概括
配对的关联性刺激会改变腹前运动皮层 (PMv) 和初级运动皮层 (M1) 之间的脑波同步. 神经振荡的这些变化预测了运动和抑制期间的运动控制.
科学领域:
- 神经科学是一个神经科学.
- 发动机控制器的控制器
- 大脑的振荡是大脑的振荡.
背景情况:
- 腹前运动皮质 (PMv) 在对主运动皮质 (M1) 的前额控制中起着至关重要的作用.
- 配对关联刺激 (ccPAS) 可以改变PMv对M1的影响,具有上下文依赖的影响.
研究的目的:
- 研究PMv-M1影响变化与神经相同步之间的功能联系.
- 确定ccPAS的方向如何影响特定频段及其与运动行为的关系.
主要方法:
- 在人体内,利用腹前运动皮层 (PMv) 和初级运动皮层 (M1) 之间的配对关联刺激 (ccPAS).
- 测量了不同频段 (乙,α,β) 的相同步变化.
- 在运动执行和抑制过程中,与振荡功率相关的静止状态同步变化.
主要成果:
- PMv-to-M1 ccPAS增加了阿尔法和β频段相同步.
- M1-to-PMv ccPAS 降低了泰达频段相同步.
- 这些静止时的同步变化预测了运动任务期间振荡功率的后续变化.
结论:
- 证明了运动网络生理学和调节区域间相互作用的共振频率之间的功能联系.
- 表明一个机制,其中突触效率的变化反映在大脑振荡中,影响运动控制.
- 突出了特定频段在电机网络内的方向影响中介作用.
相关概念视频
Motor and Sensory Areas of the Cortex
4.0K
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 cortex....
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 cortex....
4.0K
Somatosensory, Motor, and Association Cortex
573
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...
573
Association Areas of the Cortex
5.6K
Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
5.6K
Cerebral Hemispheres
394
The human brain, a complex organ, is functionally divided into two cerebral hemispheres—left and right. These hemispheres are interconnected by a structure of paramount importance, the corpus callosum. This substantial bundle of neural fibers is not just a bridge between the hemispheres but a crucial element for the brain's comprehensive functioning. It enables efficient communication between the two hemispheres, allowing each side of the brain to control and receive sensory and motor...
394
Role of Cerebellum and Prefrontal Cortex in Memory
501
The cerebellum, while traditionally associated with motor control, also plays a crucial role in memory, particularly in procedural memory, which involves learning motor tasks that become automatic through repetition. For example, studies have shown that when the cerebellum is damaged, individuals or animals lose the ability to learn conditioned motor responses, such as the conditioned eye-blink response in classical conditioning experiments with rabbits. This study demonstrates the...
501


