The engagement of temporal attention in left spatial neglect

IF 3.2 2区心理学 Q1 BEHAVIORAL SCIENCES

Cortex Pub Date : 2024-07-06 DOI:10.1016/j.cortex.2024.06.010

Simone Gori , Milena Peverelli , Sara Bertoni , Milena Ruffino , Luca Ronconi , Franco Molteni , Konstantinos Priftis , Andrea Facoetti

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引用次数: 0

Abstract

Previous literature showed how left spatial neglect arises from an asymmetrical distribution of spatial attention. However, it was also suggested that left spatial neglect might be partially caused or at least worsened by non-spatial attention disorders of the right-lateralized stimulus-driven attentional fronto-parietal network. Here, we psychophysically tested the efficiency of temporal attentional engagement of foveal perception through meta-contrast (Experiment 1) and “attentional” masking (Experiment 2) tasks in patients with right-hemisphere stroke with left neglect (N+), without left neglect (N-) and matched healthy controls (C). In both experiments, N+ patients showed higher thresholds, not only than Cs, but also than N- patients. Temporal engagement was clinically impaired in all N+ patients and highly correlated with their typical inability to direct spatial attention towards stimuli on the left side. Our findings suggest that a temporal impairment of attentional engagement is a relevant deficit of left spatial neglect.

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左侧空间忽略中时间注意力的参与

以往的文献表明，左侧空间忽略是如何产生于空间注意力的不对称分布。然而，也有观点认为，左侧空间忽略可能部分是由右侧刺激驱动的注意前顶叶网络的非空间注意失调引起的，或者至少会恶化左侧空间忽略。在此，我们通过元对比（实验 1）和 "注意 "遮蔽（实验 2）任务，对右半球中风伴左侧忽视（N+）、无左侧忽视（N-）的患者和匹配的健康对照组（C）进行了心理物理测试，以检验时间注意参与眼窝感知的效率。在这两项实验中，N+患者的阈值不仅高于C患者，也高于N-患者。在临床上，所有 N+ 患者的时间参与都受到了损害，这与他们无法将空间注意力引向左侧刺激物的典型症状高度相关。我们的研究结果表明，注意参与的时间障碍是左侧空间忽略的一个相关缺陷。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Cortex 医学-行为科学

CiteScore

7.00

自引率

5.60%

发文量

250

审稿时长

74 days

期刊介绍： CORTEX is an international journal devoted to the study of cognition and of the relationship between the nervous system and mental processes, particularly as these are reflected in the behaviour of patients with acquired brain lesions, normal volunteers, children with typical and atypical development, and in the activation of brain regions and systems as recorded by functional neuroimaging techniques. It was founded in 1964 by Ennio De Renzi.