蝙蝠拥有喉运动皮层的解剖基质
Alexander A Nevue1,2, Claudio V Mello2, Christine V Portfors1
1College of Arts and Sciences, Washington State University, Vancouver, WA, 98686.
bioRxiv : the preprint server for biology
|July 10, 2023
概括
蝙蝠拥有直接的大脑通路用于声控,类似于人类. 这一发现凸显了蝙蝠作为一种有价值的哺乳动物模型,用于研究语音学习和沟通.
科学领域:
- 神经科学是一个神经科学.
- 比较生物学的比较生物学
- 生物声学是一种生物声学.
背景情况:
- 对运动神经元的皮层投射对于精细运动控制和学习至关重要.
- 语音学习对于说话至关重要,需要精确的肌肉控制.
- 蝙蝠表现出复杂的声乐行为,表明它们是声乐学习者,但它们的神经电路的理解很差.
研究的目的:
- 为了研究塞巴短尾蝙蝠 (Carollia perspicillata) 声控的基础的神经通路.
- 为了确定蝙蝠是否具有直接的皮质投射到参与发声的脑干运动神经元.
- 建立蝙蝠作为声学学习研究的相关哺乳动物模型.
主要方法:
- 解剖学追踪技术被用来绘制神经连接的地图.
- 这项研究的重点是初级运动皮质及其投射到大脑干中的模糊核.
主要成果:
- 塞巴的短尾蝙蝠 (Carollia perspicillata) 从主要运动皮层直接投射到模糊的核.
- 这一发现与之前对另一种蝙蝠物种的研究一致,表明在蝙蝠血统中保持了对声控的解剖基质.
结论:
- 多种蝙蝠物种拥有神经架构,可以直接对声输出进行皮质控制.
- 蝙蝠代表了一种有前途的哺乳动物模型,用于研究语音学习和沟通的神经基础,潜在地为人类语言提供了洞察力.
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
565
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...
565
The Cochlea
45.2K
The cochlea is a coiled structure in the inner ear that contains hair cells—the sensory receptors of the auditory system. Sound waves are transmitted to the cochlea by small bones attached to the eardrum called the ossicles, which vibrate the oval window that leads to the inner ear. This causes fluid in the chambers of the cochlea to move, vibrating the basilar membrane.
45.2K
Lobes of the Cerebrum
744
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....
744
Higher Mental Functions of the Brain: Language
923
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...
923
Association Areas of the Cortex
5.5K
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,...
5.5K


