ISSN 1671-3710
CN 11-4766/R
主办:中国科学院心理研究所
出版:科学出版社

心理科学进展 ›› 2021, Vol. 29 ›› Issue (10): 1855-1865.doi: 10.3724/SP.J.1042.2021.01855

• 研究前沿 • 上一篇    下一篇

镜像等效或守恒及其打破:从行为到认知神经机制的研究证据

齐星亮1, 蔡厚德2()   

  1. 1南京晓庄学院幼儿师范学院, 南京 211171
    2南京师范大学心理学院, 南京 210097
  • 收稿日期:2020-11-27 出版日期:2021-10-15 发布日期:2021-08-23
  • 通讯作者: 蔡厚德 E-mail:caihoude@163.com
  • 基金资助:
    心理健康与认知科学江苏省重点实验室开放课题(19MHCSKF02);教育部人文社会科学研究一般项目(19YJCZH128)

Mirror equivalence or invariance and its breaking: Evidence from behavioral to cognitive neural mechanism

QI Xingliang1, CAI Houde2()   

  1. 1College of Preschool Education, Nanjing Xiaozhuang University, Nanjing 211171, China
    2School of Psychology, Nanjing Normal University, Nanjing 210097, China
  • Received:2020-11-27 Online:2021-10-15 Published:2021-08-23
  • Contact: CAI Houde E-mail:caihoude@163.com

摘要:

镜像等效或守恒是动物与人类个体对两侧对称自然物体的一种进化自适应加工。但是, 这种知觉特性会妨碍包含镜像字符的文字阅读学习。阅读者有必要学会利用镜像泛化抑制的“去学习”机制, 打破镜像等效或守恒, 以获得识别镜像字符的能力。这一过程中, 左侧梭状回皮层通过与早期视觉皮层、顶叶皮层和口语脑网络的交互作用, 逐渐发展出一个可以识别镜像字符的视觉词形区(visual word form area, VWFA)。今后的研究需要关注两半球及其连合纤维在镜像等效或守恒加工中的作用、镜像泛化与抑制的详尽加工机制及其对镜像书写的影响、正常汉语儿童的汉字镜像泛化加工等问题。

关键词: 镜像等效或守恒及其打破, 左侧梭状回, 视觉词形区, “去学习”机制, 镜像泛化与抑制

Abstract:

Mirror equivalence or invariance, also known as mirror generalization or symmetry generalization, is a perceptual property in which individuals regard the left-right mirror of a visual perception object as the same stimulus. Experimental evidence of animal behavior and human cognition shows that mirror equivalence or invariance is an evolutionary adaptive process of animal and human individuals to the bilateral symmetry of natural objects, which has obvious advantages in reducing cognitive learning load and survival pressure. Recent studies on cognitive neural mechanism finds that mirror equivalence or invariance is hierarchically processed in the ventral visual pathway of primates, and the fusiform gyrus cortex in the human brain is a key region for processing mirror equivalence or invariance information of objects or faces.

Importantly, mirror equivalence or invariance may hinder the reading of script containing mirror characters, leading to mirror errors in the early reading for normal children. Therefore, it is necessary for readers to learn to use the inhibitory mechanism of “unlearning” of mirror generalization, so as to break the mirror equivalent or invariance and to acquire the ability of identifying the mirror characters. In this process, the left fusiform gyrus cortex gradually develops into the VWFA capable of recognizing mirror characters, but it still exhibits mirror equivalence or invariance for objects or faces. This is consistent with the neuronal recycling hypothesis, i.e., learning to read must occupy neurons in the left fusiform gyrus previously used for object or face processing. Furthermore, developmental dyslexia children (DD) have difficulty in inhibition of mirror generalization, suggesting the mechanism of breaking mirror equivalence or invariance may be abnormal in DD. Therefore, exploring the cognitive neural mechanism on breaking the mirror equivalent or invariance is important for elucidating the brain plasticity of learning to read.

In this paper, we first briefly discuss the evolutionary adaptive theory of mirror equivalence or invariance and early related behavioral and cognitive study evidence. Then we systematically review recent evidence on the hierarchical processing of mirror equivalence or invariance in the ventral visual pathway, the role of the fusiform gyrus cortex of human brain in the process of mirror equivalence or invariance, the cognitive neural mechanism on breaking the mirror equivalent or invariance during learning to read, and the difficulty in mirror generalization inhibition and related brain network abnormality in DD. We propose that the interaction between the left fusiform gyrus or the VWFA and the early visual cortex, the parietal cortex and the brain network of spoken language may be an important neural basis for learning to use the inhibitory mechanism of mirror generalization for breaking the mirror equivalence or invariance. Future studies are needed to focus on the role of the two hemispheres and their commissure fibers in mirror equivalence or invariance processing, the detailed processing mechanism of mirror generalization and inhibition, the influence of mirror generalization and inhibition on mirror writing, and the mirror generalization processing of Chinese characters in normal Chinese children.

Key words: mirror equivalence or invariance and its breaking, left fusiform gyrus, visual word form area (VWFA), “unlearning” mechanism, mirror generalization and inhibition

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