状态调节能力对ADHD儿童反应执行和反应抑制影响的眼动研究

发布时间：2018-03-23 04:00

本文选题：状态调节　切入点：反应抑制　出处：《陕西师范大学》2012年硕士论文　论文类型：学位论文

【摘要】：激活状态是对即将发生的行为做反应的准备情况,被试自身的激活状态会影响其反应表现。有研究认为根据任务和条件调整自身行为状态的能力即状态调节能力有缺损才是ADHD的关键问题,抑制缺损只是一种较低级的缺陷。作为一种更高一级的缺陷,状态调节能力会影响反应表现。本研究主要探讨ADHD儿童的状态调节能力对其反应执行和反应抑制的影响,以及ADHD儿童是否存在状态调节、反应执行、反应抑制的缺损。本研究所有的实验通过刺激呈现速度影响被试的激活状态,不同激活状态下的反应差异体现状态调节能力。通过设置时间隔控制刺激呈现速度,时间间隔为1秒的快速呈现速度引发被试过度激活的状态,时间间隔为4秒的中等呈现速度引发正常的激活状态。实验一要求被试完成在两种刺激呈现速度(快速、中速)下朝向眼跳与反向眼跳组合的眼跳任务,通过潜伏期、眼跳方向错误率分别考察被试的反应执行能力、反应抑制能力。实验二在实验一的基础上添加了线索以控制注意,考察控制注意后状态调节能力对反应执行和反应抑制的影响模式是否发生变化。实验二采用Posner的空间启动范式,分别从内源、外源线索两种线索考察状态调节能力对反应的影响模式。实验二通过潜伏期、预期眼跳率分别考察反应执行能力、反应抑制能力。研究的主要结论是：(1)与正常儿童相比,ADHD儿童存在反应抑制能力缺损,反应执行能力无损伤,与正常儿童基本一样。(2)与正常儿童相比,ADHD儿童的反应执行能力不易受状态调节能力影响,加入无效内源线索后改变了影响模式,即状态调节能力对其产生了影响；ADHD儿童的反应抑制能力易受状态调节能力影响,加入提示线索(有效、无效)后改变了影响模式,即状态调节能力对反应抑制能力的影响不显著。(3)内源和外源两种线索对状态调节和反应执行的影响模式不同,加入内源线索后改变了状态调节对反应执行的影响模式,而加入外源线索后影响模式没变化。(4)与证常儿童相比,ADHD儿童的状态调节能力有缺损。
[Abstract]:The activation state is the readiness to respond to an impending behavior, Some studies suggest that the ability to adjust their behavioral state according to tasks and conditions, that is, the defective ability of state regulation, is the key problem of ADHD. Inhibition of defect is only a lower level defect. As a higher level defect, the ability of state regulation will affect the response performance. This study mainly studied the effect of state regulation ability of ADHD children on their response execution and response inhibition. And whether there is a defect of state regulation, response execution, and response inhibition in ADHD children. In some experiments, the activation state of the subjects was affected by the rate of stimulus presentation, and the response differences in different activation states reflected the ability of state regulation, and the speed of the stimulation was controlled by setting time intervals. A fast rendering rate with a time interval of 1 second leads to a state of over-activation, while a moderate rendering speed of 4 seconds leads to a normal state of activation. Under moderate speed), the task of saccade in combination with reverse saccade was used to investigate the ability of reaction execution and inhibition of reaction through incubation period and error rate of direction of saccade. Experiment 2 added clues to control attention on the basis of experiment 1. To investigate whether the mode of influence of state regulation ability after control attention on reaction execution and response inhibition has changed. Experiment 2 adopts the spatial priming paradigm of Posner, which is derived from endogenous, respectively. Exogenous cues were used to investigate the effects of state regulation on response. In experiment 2, the ability of execution and inhibition of response were examined by latent period and the expected rate of knuckles. The main conclusion of the study is: compared with the normal children, ADHD children have the ability of response inhibition, and the ability of response execution is not impaired. The response ability of ADHD children is not easily affected by the state regulation ability compared with the normal children. After adding invalid endogenous cues, the influence mode is changed. That is, the ability of state regulation had an effect on the response inhibition ability of ADHD children, and the response inhibition ability of ADHD children was easily affected by the ability of state regulation. After adding cues (effective and ineffective), the influence mode was changed. The effects of endogenous and exogenous cues on state regulation and response execution were different, and the influence mode of state regulation on response execution was changed after the addition of endogenous cues. However, the influence mode of ADHD was not changed after the addition of exogenous cues. 4) the ability of state regulation of ADHD children was impaired compared with that of normal children.
【学位授予单位】：陕西师范大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：R749.94

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