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Psychophysiological Study for the Promotion of Learning in Chidren with Learning Disability

促进学习障碍儿童学习的心理生理学研究

基本信息

批准号：
05451137
负责人：
OZAKI Hisaki
金额：
$ 2.56万
依托单位：
IBARAKI UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (B)
财政年份：
1993
资助国家：
日本
起止时间：
1993 至 1995
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-05451137/
关键词：
Learning Disability Writing Difficulty Visual Cognition Eye Movement Effective Visual Field Visual Stimuli Presenting Apparatus Multicamera recording system 視覚刺激呈示装置書写困難視覚刺激呈示ドーム

项目摘要

(1) Visuo-Cognitive Process evaluted by the multicamera recording systemVisuo-Cognitive process were evaluated by using the multicamera recording system in children with learing disability or learning problems. Coordination of head and eye rotation were disturbed in children who showed some difficulty in visuo-cognitive aspects.(2) Cognitive process and event related potentialsRare stimulus included in a series of repetitive stimuli provokes mismatch negativity (MMN). Automatic information processing within the brain could be detected by recording such an event related MMN.In the fixed interstimulus interval condition, MMN could be obtained from the children with mental retardation. Automatic differentiation in children with mental retardation works effectively in the fixed interstimulus interval situation. But, in the randam interstimulus interval condition, MMN obtained from the children with mental retardation became obscure. These result suggest that children with mental retardation had same difficulties in the situation of automatic discrimination of randomly presented stimulus series.(3) Brain functioning evaluated by background EEGBackground EEG reflects the functional atate of the brain activities. Spectral structure of background EEG changes according to the aging during childhood. Those EEG are affected by the volunary movement in sensory motor cortex. Furthermore, EEG in hypoxia were supplementally examined.(4) Visual orientation in the simulated condition of low visionCoordinate action of the head and eye movement are examined in normal adult and person with low vision. In the condition of low vision, visual orientation became to depend on head mavement comparing to the normal vision.

(1)用多摄像机记录系统评价学习困难儿童的视觉认知过程。在视觉认知方面表现出一定困难的儿童，头部和眼球旋转的协调受到干扰。(2)认知过程与事件相关电位一系列重复刺激中的稀有刺激可引起失匹配负波（MMN）。通过记录与事件相关的MMN可以检测脑内的自动信息处理，在固定刺激间隔条件下，可以获得智力低下儿童的MMN。智能障碍儿童的自动区分在固定的刺激间隔情况下有效。但是，在随机刺激间隔条件下，智力低下儿童的MMN变得模糊不清。这些结果表明，智力落后儿童在对随机呈现的刺激序列进行自动辨别时也存在同样的困难。(3)背景脑电评价脑功能背景脑电反映了脑活动的功能状态。儿童期背景脑电的频谱结构随年龄增长而变化。这些脑电受感觉运动皮层的神经活动的影响。并对缺氧状态下的脑电图进行回顾性分析。(4)模拟低视力条件下的视觉定向本文对正常人和低视力者的头动和眼动进行了研究。在低视力条件下，视觉定向相对于正常视力而言，变得依赖于头部运动。