一个物体,两个网络?评估灵长类视觉系统中面部和身体选择性区域之间的关系。

One object, two networks? Assessing the relationship between the face and body-selective regions in the primate visual system.

作者信息

Taubert Jessica, Ritchie J Brendan, Ungerleider Leslie G, Baker Christopher I

机构信息

The Laboratory of Brain and Cognition, The National Institute of Mental Health, Bethesda, MD, 20814, USA.

School of Psychology, The University of Queensland, Brisbane, QLD, 4072, Australia.

出版信息

Brain Struct Funct. 2022 May;227(4):1423-1438. doi: 10.1007/s00429-021-02420-7. Epub 2021 Nov 18.

Abstract

Faces and bodies are often treated as distinct categories that are processed separately by face- and body-selective brain regions in the primate visual system. These regions occupy distinct regions of visual cortex and are often thought to constitute independent functional networks. Yet faces and bodies are part of the same object and their presence inevitably covary in naturalistic settings. Here, we re-evaluate both the evidence supporting the independent processing of faces and bodies and the organizational principles that have been invoked to explain this distinction. We outline four hypotheses ranging from completely separate networks to a single network supporting the perception of whole people or animals. The current evidence, especially in humans, is compatible with all of these hypotheses, making it presently unclear how the representation of faces and bodies is organized in the cortex.

摘要

在灵长类视觉系统中,面部和身体通常被视为不同的类别,由面部和身体选择性脑区分别进行处理。这些区域占据视觉皮层的不同区域,通常被认为构成独立的功能网络。然而,面部和身体是同一物体的一部分,在自然环境中它们的出现不可避免地会同时发生变化。在这里,我们重新评估支持面部和身体独立处理的证据,以及为解释这种区别而提出的组织原则。我们概述了四个假设,从完全独立的网络到支持对整个人或动物感知的单一网络。目前的证据,尤其是在人类中的证据,与所有这些假设都相符,使得目前尚不清楚面部和身体的表征在皮层中是如何组织的。

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