一个左侧白质通道与家养狗的沟通有关
Isabel Levin1, Mira Sinha1, Sophie Barton1
1Department of Human Evolutionary Biology, Harvard University, 11 Divinity Avenue, Cambridge, MA 02138, USA.
Current biology : CB
|November 5, 2024
概括
狗拥有一个大,左侧的大脑通道连接通信区域,类似于人类. 这种神经通路与狗理解单词的能力相关,突出显示了哺乳动物沟通的进化.
科学领域:
- 神经科学是一个神经科学.
- 比较解剖学的比较解剖学
- 动物行为 动物行为
背景情况:
- 复杂的沟通对于生存和繁殖至关重要,特别是在大脑和社会结构较大的物种中.
- 人类的弧形囊,一个左侧的白物质通道,连接关键的语言区域 (Broca和Wernicke的区域).
- 这个通道存在,但在黑猩猩中不太发达和不对称,这表明进化分歧.
研究的目的:
- 调查狗 (Canis familiaris) 中类似于人类弧形带的白质通道的存在和特征.
- 探索这条通道与犬类沟通能力的个体差异之间的关系,特别是感受性词汇.
主要方法:
- 使用扩散张力成像 (DTI) 的比较神经解剖学可视化狗大脑中的白质道.
- 相关性分析,以评估通道的属性与狗的受觉词汇量尺度之间的关联.
主要成果:
- 狗表现出大量的,左侧化的白质道,连接参与通信的皮质区域.
- 这条通道的尺寸和完整性与狗的感受词汇量具有积极的相关性.
- 这一发现表明,狗中通信处理的神经基础与人类语言通路有相似之处.
结论:
- 狗的大脑拥有一个专门的白质通道,支持通信,类似于人类的弧形囊.
- 化可能影响了狗中神经回路的进化,以进行通信.
- 这段与受体词汇大小的关联,为动物沟通和认知的神经生物学提供了洞察力.
相关概念视频
Spinal Cord: Cross-sectional Anatomy
1.7K
The cross-sectional anatomy of the spinal cord offers a detailed view of its complex structure and function within the central nervous system. At the core of the spinal cord lies the gray matter, characterized by its butterfly or "H"-shaped appearance in cross-section. This central region is enveloped by white matter, with the overall structure divided into symmetrical halves by the dorsal median sulcus and the ventral median fissure.
Gray Matter and its Components
Central to the gray...
Gray Matter and its Components
Central to the gray...
1.7K
Communication
7.7K
Communication between two animals occurs when one animal transmits an information signal that causes a change in the animal that receives the information. Organisms communicate with one another in a host of different ways. Signals can be auditory, chemical, visual, tactile, or a combination of these. Communication is a critical behavioral adaptation that promotes survival, growth, and reproduction.
7.7K
Higher Mental Functions of the Brain: Language
751
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...
751
Lateralization
310
Brain lateralization refers to the division of mental processes and functions between the two hemispheres of the brain, a phenomenon that optimizes neural efficiency and underpins complex abilities in humans. This specialization allows each hemisphere to perform tasks where it has a comparative advantage, facilitating more refined cognitive capabilities across different domains.
310
Association Areas of the Cortex
5.1K
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,...
5.1K
Diencephalon: Thalamus and Information Relay
1.5K
The thalamus, often called “the gateway to the cerebral cortex,” is vital in processing and directing sensory and motor signals throughout the brain. Almost all inputs destined for the cerebral cortex, except for olfactory signals, are relayed through the thalamus. The thalamus is a sophisticated relay station, channeling information from various brain regions to the cerebral cortex, as well as a filter, prioritizing certain signals over others based on current physiological...
1.5K


