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Effects general attention deficits on unilateral spatial neglect : Is verbalization effective in behavioral control?

一般注意力缺陷对单侧空间忽视的影响：言语在行为控制中有效吗？

基本信息

批准号：
13610089
负责人：
SEKI Keiko
金额：
$ 2.24万
依托单位：
Kobe University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2001
资助国家：
日本
起止时间：
2001 至 2003
项目状态：
已结题

项目摘要

Unilateral spatial neglect (USN) is the failure of brain damaged patients to attend to and explore stimuli presented in the space contralateral to their lesion. Left USN followed by the right hemisphere stroke is frequently observed among stroke patients. Persisting USN disturbs the daily activities of patients, and moreover, it often reduces effectiveness of motor rehabilitation. There have been many attempts to improve USN, but most of them show only temporal effects, probably because USN is not a unitary deficit. USN is predominantly explained in terms of disorder of spatial attention, but it may also be affected by non-spatial problems, such as general attention deficits. If general attention training can modulate neglect performance, it may provide another approach for neglect rehabilitation. Results of previous studies suggest that language plays an important role to control neglect performance.This research aimed to study whether or not neglect patients could control their neglect behavior by virtue of language function. Several tasks were developed for this purpose, all of which consisted of two conditions. One was a baseline condition which allowed neglect patients to perform the task according to their own strategy, and the other was an experimental condition which required them to perform it through verbalization. Significant improvement of performance in the experimental condition was regarded as effects of verbalization through which patients could control their neglect performance.The results clearly showed that neglect patients could improve their spatial problem through non-spatial strategies, and shed light on neglect rehabilitation. Papers regarding the results were partly read or published in several academic meetings and journals. The whole picture of the research is now prepared for submission.

单侧空间忽略是指脑损伤患者不能注意和探索损伤对侧空间的刺激。在脑卒中患者中，经常观察到左USN后出现右半球卒中。持续的USN干扰患者的日常活动，而且，它经常降低运动康复的有效性。有许多试图改善USN，但他们中的大多数只显示时间效应，可能是因为USN不是一个单一的赤字。USN主要解释为空间注意力障碍，但也可能受到非空间问题的影响，如一般注意力缺陷。如果一般注意力训练可以调节忽视表现，它可能会提供另一种方法，忽视康复。以往的研究结果表明，语言在控制忽视行为中起着重要的作用，本研究旨在探讨忽视患者是否能够通过语言功能来控制自己的忽视行为。为此目的开发了几个任务，所有这些任务都包括两个条件。一个是基线条件，允许忽视患者根据自己的策略执行任务，另一个是实验条件，要求他们通过言语化来执行任务。实验条件下的显著改善被认为是言语化的效果，通过言语化患者可以控制他们的忽视行为，这一结果清楚地表明，忽视患者可以通过非空间策略改善他们的空间问题，并为忽视康复提供了启示。有关结果的论文部分被阅读或发表在几个学术会议和期刊上。研究的全貌现已准备提交。