Ophthalmic medical image analysis : 11th International Workshop, OMIA 2024, held in Conjunction with MICCAI 2024, Marrakesh, Morocco, October 10, 2024, Proceedings. OMIA (Workshop) (11th : 2024 : Marrakech, Morocco)最新文献

英文中文

Selective Functional Connectivity between Ocular Dominance Columns in the Primary Visual Cortex. 初级视觉皮层中眼球支配列之间的选择性功能连接性

Ophthalmic medical image analysis : 11th International Workshop, OMIA 2024, held in Conjunction with MICCAI 2024, Marrakesh, Morocco, October 10, 2024, Proceedings. OMIA (Workshop) (11th : 2024 : Marrakech, Morocco)

Pub Date : 2025-01-01 Epub Date: 2024-10-10 DOI: 10.1007/978-3-031-73119-8_1

Iman Aganj, Shahin Nasr

The primary visual cortex (V1) in humans and many animals is comprised of fine-scale neuronal ensembles that respond preferentially to the stimulation of one eye over the other, also known as the ocular dominance columns (ODCs). Despite its importance in shaping our perception, to date, the nature of the functional interactions between ODCs has remained poorly understood. In this work, we aimed to improve our understanding of the interaction mechanisms between fine-scale neuronal structures distributed within V1. To that end, we applied high-resolution functional MRI to study mechanisms of functional connectivity between ODCs. Using this technique, we quantified the level of functional connectivity between ODCs as a function of the ocular preference of ODCs, showing that alike ODCs are functionally more connected compared to unalike ones. Through these experiments, we aspired to contribute to filling the gap in our knowledge of the functional connectivity of ODCs in humans as compared to animals.

人类和许多动物的初级视觉皮层（V1）由精细的神经元集合组成，这些神经元对刺激一只眼睛的反应优于另一只眼睛，也被称为眼优势列（ODC）。尽管 ODCs 在塑造我们的感知方面非常重要，但迄今为止，人们对 ODCs 之间功能性相互作用的本质仍然知之甚少。在这项研究中，我们旨在加深对分布于 V1 内部的精细神经元结构之间相互作用机制的理解。为此，我们应用高分辨率功能磁共振成像来研究 ODC 之间的功能连接机制。利用这种技术，我们量化了 ODC 之间的功能连接水平与 ODC 眼部偏好的函数关系，结果显示，相似的 ODC 与不相似的 ODC 相比，功能连接水平更高。通过这些实验，我们希望能填补人类与动物相比，在 ODC 功能连通性方面的知识空白。

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