人类海马体子场微观结构的发展以及与关联推理的关系
Sophia Vinci-Booher1,2, Margaret L Schlichting3,4, Alison R Preston4
1Indiana University, Psychological and Brain Sciences, 1101 E. 10th St., Bloomington, Indiana, 47405, United States.
Cerebral cortex (New York, N.Y. : 1991)
|August 9, 2023
概括
这项研究揭示了海马子场的独特发展路径,影响大脑如何处理记忆和基于感知的推断. 牙状回形 (DG) 中的细胞组织支持记忆,而垂体 (SUB) 则有助于感知.
科学领域:
- 神经科学是一个神经科学.
- 发展心理学 发展心理学
- 脑部成像 脑部成像
背景情况:
- 对于记忆至关重要的海马体具有独特的细胞结构的独特子领域.
- hippocampal 子场中与年龄相关的体积变化与推断和记忆有关,但发育性细胞变化仍然不清楚.
研究的目的:
- 为了研究海马体亚场细胞组织的发育轨迹.
- 检查这些微观结构发展与基于记忆和基于感知的推理任务的性能之间的关系.
主要方法:
- 采用显式模型测试来分析组织微观结构的发展.
- 评估两个不同的推断任务的表现:基于记忆的和基于感知的.
- 研究了海马子区 (SUB,DG,CA1,CA2/3) 的发育关系及其与性别的相互作用.
主要成果:
- 每个海马体子领域都表现出独特的关于细胞组织的发展轨迹.
- 垂体 (SUB) 与年龄呈现线性关系,而牙状 (DG),CA1和CA2/3呈现非线性轨迹.
- 总局与基于记忆的推断有关,而SUB与基于知觉的推断有关,不依年龄.
结论:
- 河马子场在其细胞组织中遵循不同的发育路径.
- 这些独特的发育轨迹在整个发育过程中支持特定的推断和记忆功能.
- 了解这些独特的发育模式是理解整个生命周期内海马体功能的关键.
更多相关视频
11:03High-resolution In Vivo Manual Segmentation Protocol for Human Hippocampal Subfields Using 3T Magnetic Resonance Imaging
Published on: November 10, 2015
9.4K
10:45Preparation of Acute Slices from Dorsal Hippocampus for Whole-Cell Recording and Neuronal Reconstruction in the Dentate Gyrus of Adult Mice
Published on: April 3, 2021
7.4K
相关概念视频
Role of Hippocampus in Memory
315
The hippocampus, a critical brain structure, plays an essential role in memory processing, particularly in the formation and retrieval of memory. This small, seahorse-shaped region is located within the medial temporal lobe, with one hippocampus in each brain hemisphere. Experimental studies involving lesions in the hippocampi of rats have demonstrated significant impairments in tasks such as object recognition and maze navigation, indicating the hippocampus involvement in both recognition and...
315
Functional Brain Systems: Limbic System
3.0K
The limbic system, often called the "emotional brain," is a complex set of structures located deep within the brain. The intricate network of the limbic system supports a wide range of psychological functions, from emotional regulation to memory formation and sensory processing. This functional brain region encompasses specific parts of the diencephalon and the cerebrum, integrating the higher mental functions of the cerebral cortex with the primitive emotional responses of the deep brain...
3.0K
Storage
105
A schema is a mental framework that helps individuals organize and interpret information. Schemata, formed from previous experiences, influence how we process new information: how we encode it, the inferences we make, and how we retrieve it. For instance, a schema for what a typical classroom looks like might include desks, a teacher's desk, a whiteboard, and students in such an environment. This expectation helps us quickly understand and navigate new classrooms without needing to analyze...
105
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
Olfaction
44.5K
The sense of smell is achieved through the activities of the olfactory system. It starts when an airborne odorant enters the nasal cavity and reaches olfactory epithelium (OE). The OE is protected by a thin layer of mucus, which also serves the purpose of dissolving more complex compounds into simpler chemical odorants. The size of the OE and the density of sensory neurons varies among species; in humans, the OE is only about 9-10 cm2.
The olfactory receptors are embedded in the cilia of the...
The olfactory receptors are embedded in the cilia of the...
44.5K
