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arXiv 2407.08714q-bio.NC
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人类视觉皮层中不变的个体间关系结构

Invariant inter-subject relational structures in the human visual cortex

Ofer Lipman, Shany Grossman, Doron Friedman, Yacov Hel-Or, Rafael Malach

AI总结:

本研究通过对19名患者的颅内视觉皮层记录分析,发现关系编码是个体间一致性最高的神经表征方式,为理解人类共享视觉感知的神经基础提供了依据。

摘要:

不同个体以高度相似的方式感知世界是一种基本行为,这是人类合作与交流能力的重要基础。然而,支撑我们视觉世界这种个体间共性的神经特性究竟是什么?探明神经编码的哪些方面在不同个体大脑中保持不变,不仅能阐释这一基础问题,还能揭示作为视觉感知基础的神经编码机制。本研究通过对参与不同视觉识别任务的三组患者进行颅内记录(分析共纳入19名患者、244个高级视觉触点),探究了个体视觉皮层中一致性最高的神经编码机制。结果表明,由模式激活轮廓间的相似距离集合所表征的关系编码,是个体间最具一致性的表征方式。而群体向量编码、线性编码等其他编码方案均无法达到类似的个体间一致性。因此,本研究结果支持关系编码是人类大脑中支撑个体共享感知内容的核心神经编码。

英文摘要:

It is a fundamental behavior that different individuals see the world in a largely similar manner. This is an essential basis for humans' ability to cooperate and communicate. However, what are the neuronal properties that underlie these inter-subject commonalities of our visual world? Finding out what aspects of neuronal coding remain invariant across individuals' brains will shed light not only on this fundamental question but will also point to the neuronal coding scheme as the basis of visual perception. Here, we address this question by obtaining intracranial recordings from three cohorts of patients taking part in a different visual recognition task (overall 19 patients and 244 high-order visual contacts included in the analyses) and examining the neuronal coding scheme most consistent across individuals' visual cortex. Our results highlight relational coding - expressed by the set of similarity distances between profiles of pattern activations - as the most consistent representation across individuals. Alternative coding schemes, such as population vector coding or linear coding, failed to achieve similar inter-subject consistency. Our results thus support relational coding as the central neuronal code underlying individuals' shared perceptual content in the human brain.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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