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来自单个神经元记录和MRI的受体场显示了类似的信息编码,用于双眼深度

Andrew J Parker^1,2,3, Ivan Alvarez^4,5, Alessandro Mancari^5,6

¹Department of Sensory Physiology, Institute of Biology, Otto von Guericke University, Magdeburg 39120, Germany.

Proceedings of the National Academy of Sciences of the United States of America

|November 3, 2025

概括

人口受感场 (pRF) 方法现在测量了人脑中的双眼深度感知. 这种磁共振成像 (MRI) 技术揭示了详细的视觉处理,与动物研究保持一致.

科学领域:

神经科学是一个神经科学.
视觉感知视觉感知视觉感知
磁共振成像技术磁共振成像技术

背景情况:

人口受体场 (pRF) 方法是一种使用磁共振 (MR) 成像的功能测量技术.
这种方法主要是对视网膜坐标中的感觉特性进行了表征.
将pRF扩展到双眼深度感知提供了对人类视觉皮层功能的新见解.

研究的目的:

扩展人口受感场 (pRF) 方法来量化人脑中的双眼深度感知.
为了比较人类深度处理的pRF测量与皮层中的电生理学记录.
调查pRF测量对于微尺度深度差异的灵敏度.

主要方法:

从9个人类视觉区域 (V1,V2,V3,V3AB,V4,V5,V7,VOC,LOC) 中提取了人口受体场 (pRF),使用功能磁共振成像 (fMRI).
分析了pRFs对它们对双眼深度信息的编码.
进行了与子同源区域的现有电生理学数据进行比较.

主要成果:

人类和的V1显示了对双眼深度编码的类似配置文件.
人类和的V5都表现出对相关和反相关刺激的偏好双眼深度的刺激依赖变化.
较高的视觉区域表现出对相对深度的反应能力增加,与的电生理学一致.
与许多现有的电生理学方法相比,pRF测量对微小的双眼深度差异更为敏感.

结论:

该pRF方法已成功扩展到测量更高阶的视觉特性,特别是双眼深度感知.
人类的基于MR的非侵入性pRF测量与动物的侵入性电生理学记录有很强的相似之处,支持pRF方法的验证.
这种扩展的pRF方法为研究人类复杂的视觉处理提供了一个敏感的工具.

关键词:

双眼镜视力双眼镜视力双眼镜视力电力生理学电力生理学磁共振成像技术的使用人口接收的领域.

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