从非额叶皮层区域解读语音意图
Prashanth Ravi Prakash1, Tianhao Lei2, Robert D Flint2
1Departments of Biomedical Engineering, Northwestern University, Chicago, IL 60611, United States of America.
Journal of neural engineering
|January 14, 2025
概括
研究人员在叶和叶皮层中发现了语音意图信号,扩大了脑机界面 (BMI) 的可能性. 这一发现可能有助于发言障碍患者,包括那些额叶损伤的人.
科学领域:
- 神经科学是一个神经科学.
- 生物医学工程 生物医学工程
- 语音科学 语言科学
背景情况:
- 目前的语音大脑机器接口 (BMIs) 主要解码来自前叶的语音运动皮层的信号.
- 有限的研究表明,叶和叶叶对BMI的信号具有潜在的有用性.
- 额叶的损伤可能会导致严重的语音产生缺陷,限制当前的BMI应用.
研究的目的:
- 调查与语音意图相关的神经信号的存在,时间和位置在皮和皮.
- 确定这些信号是否与语音产生有关,而不仅仅是感知或理解.
- 评估这些信号对增强语音BMI的潜力,特别是对于额叶损伤的个体.
主要方法:
- 利用内记录来捕捉神经活动穿过皮和皮.
- 采用因果信息分析来区分语音意图与静止状态和其他认知过程 (例如理解,工作记忆).
- 分析神经信号的空间分布和时间动态,将它们与语音产生联系起来.
主要成果:
- 通过使用因果信息,成功区分语音意图与静止状态和其他语言相关过程.
- 识别了与语音意图相关的信息在叶和叶的广泛分布.
- 显示显著信号的特定区域包括上旋,中叶,角旋和上边旋.
结论:
- 叶和叶皮层包含与语音生产意图相关的因果解码的神经信息.
- 这些信息可以在语音发作之前被检测出来,为BMI发展提供了一个新的途径.
- 研究结果表明,语音BMI可以改进和扩展,包括额叶损伤的患者.
关键词:
亚法西亚 (aphasia) 是一种失言症.大脑计算机接口 脑计算机接口大脑机器接口 大脑机器接口电皮质谱 (电皮质谱) 是一种电皮质谱.语音意图 语音意图 语音意图演讲制作 演讲制作 演讲制作立体脑电图 (stereoencephalography) 是一种立体脑电图.更多相关视频
09:00Investigating the Function of Deep Cortical and Subcortical Structures Using Stereotactic Electroencephalography: Lessons from the Anterior Cingulate Cortex
Published on: April 15, 2015
12.3K
08:45Mapping Cortical Dynamics Using Simultaneous MEG/EEG and Anatomically-constrained Minimum-norm Estimates: an Auditory Attention Example
Published on: October 24, 2012
14.6K
相关概念视频
01:10Higher Mental Functions of the Brain: Language
727
Language is a system of communication that allows the expression of thoughts, ideas, and feelings. The brain processes language in both hemispheres.
Language formation and comprehension take place in the dominant hemisphere. The dominant hemisphere is responsible for understanding the meaning of spoken, written, or sign language, as well as the ability to communicate. For most people, the left hemisphere is the dominant one. The right hemisphere, then, gives tone and emotional context to the...
Language formation and comprehension take place in the dominant hemisphere. The dominant hemisphere is responsible for understanding the meaning of spoken, written, or sign language, as well as the ability to communicate. For most people, the left hemisphere is the dominant one. The right hemisphere, then, gives tone and emotional context to the...
727
01:14Motor and Sensory Areas of the Cortex
2.8K
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...
2.8K
01:21Association Areas of the Cortex
5.0K
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,...
5.0K
01:22Lobes of the Cerebrum
534
The cerebral cortex, a critical structure of the brain, is intricately divided into two hemispheres, each consisting of four distinct lobes: occipital, temporal, frontal, and parietal. These lobes function cooperatively to regulate various cognitive and sensory functions, forming the basis of our complex neural capabilities.
Frontal lobe
The frontal lobes, located behind the forehead, are the command center of our brain, controlling personality, intelligence, and voluntary muscle movements....
Frontal lobe
The frontal lobes, located behind the forehead, are the command center of our brain, controlling personality, intelligence, and voluntary muscle movements....
534
01:24Somatosensory, Motor, and Association Cortex
395
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...
395
01:05Cerebral Hemispheres
297
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...
297