Towards a unified understanding of lateralized vision: A large-scale study investigating principles governing patterns of lateralization using a heterogeneous sample
Towards a unified understanding of lateralized vision: A large-scale study investigating principles governing patterns of lateralization using a heterogeneous sample
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DOI：
10.1016/j.cortex.2020.08.029
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发表时间：
2020-12-01
期刊：
影响因子：
3.6
通讯作者：
Lorist, Monicque M.
中科院分区：
文献类型：
--
作者：
Brederoo, Sanne G.;Van der Haegen, Lise;Lorist, Monicque M.
虽然在过去的几十年中，人类大脑的功能侧化一直是一个广泛研究的主题，但迄今为止，很少有研究比调查单个孤立过程的侧化更深入。在本研究中，我们的目的是通过调查面孔和文字加工的偏侧化模式，以及相关的低层次视觉加工，得出一个更统一的观点。我们测试了一个大的和异质的参与者群体，并使用了一些任务，已被证明产生不同类型和复杂性的视觉信息的侧化处理的可复制的指数。根据贝叶斯统计，组水平的分析表明，预期的右半球（RH）侧化的脸，全球形式，低空间频率处理，空间注意力，和左半球（LH）侧化的视觉词和局部特征处理。与右利手个体相比，左利手个体，尤其是RH优势个体的语言偏侧化模式偏离了这一“典型”模式。我们的研究结果支持的概念，脸和字的过程来偏侧化的同源领域的两个半球，影响下的RHand LH-专业化的全球形式，本地功能，低和高空间频率处理。因此，我们提出了一个更统一的理解偏侧视觉，提供证据的输入不对称性和因果互补原则的偏侧视觉信息处理。空间注意与其他加工的侧化之间不存在相关性，这支持了空间注意与其他加工的独立侧化的观点，符合统计互补原则。(C)2020作者（S）由爱思唯尔有限公司发布
While functional lateralization of the human brain has been a widely studied topic in the past decades, few studies to date have gone further than investigating lateralization of single, isolated processes. With the present study, we aimed to arrive at a more unified view by investigating lateralization patterns in face and word processing, and associated lower-level visual processing. We tested a large and heterogeneous participant group, and used a number of tasks that had been shown to produce replicable indices of lateralized processing of visual information of different types and complexity. Following Bayesian statistics, group-level analyses showed the expected right hemisphere (RH) lateralization for face, global form, low spatial frequency processing, and spatial attention, and left hemisphere (LH) lateralization for visual word and local feature processing. Compared to right-handed individuals, lateralization patterns of left-handed and especially those who are RH-dominant for language deviated from this 'typical' pattern. Our results support the notion that face and word processes come to be lateralized to homologue areas of the two hemispheres, under influence of the RHand LH-specializations in global form, local feature, and low and high spatial frequency processing. As such, we present a more unified understanding of lateralized vision, providing evidence for the input asymmetry and causal complementarity principles of lateralized visual information processing. The absence of correlations between spatial attention and lateralization of the other processes supports the notion of their independent lateralization, conform the statistical complementarity principle. (C) 2020 The Author(s). Published by Elsevier Ltd.