CAJ | 학술논문

采用传统的go/no-go任务,并将刺激间的时间间隔设置为1秒和4秒,考察在不同的注意负荷强度下,两亚型ADHD儿童反应时个体内变异性的特点,并应用指数—高斯（ex-Gaussian）模型对数据进行分析。结果发现：（1）ADHD儿童个体内变异性大于普通儿童。两亚型ADHD儿童个体内变异性没有差异,但注意缺陷型儿童在注意负荷强度增大的情况下,其反应时的个体内变异性变大。（2）在排除过长反应时的影响后,注意缺陷型儿童的平均反应时长且变异性大,表明其基本的信息加工能力落后;混合型儿童虚报率高,其反应抑制能力落后。
채용전통적go/no-go임무,병장자격간적시간간격설치위1초화4초,고찰재불동적주의부하강도하,량아형ADHD인동반응시개체내변이성적특점,병응용지수—고사（ex-Gaussian）모형대수거진행분석。결과발현：（1）ADHD인동개체내변이성대우보통인동。량아형ADHD인동개체내변이성몰유차이,단주의결함형인동재주의부하강도증대적정황하,기반응시적개체내변이성변대。（2）재배제과장반응시적영향후,주의결함형인동적평균반응시장차변이성대,표명기기본적신식가공능력락후;혼합형인동허보솔고,기반응억제능력락후。
The study aims to evaluate the intra-individual reaction time variability in children of two ADHD（attention deficit hyperactivity disorder） subtypes,by means of performing the go/no-go task with an inter-stimulus interval of one to four seconds.The ex-Gaussian model is used for analyzing statistics.The findings indicate the following：（1）The children with ADHD demonstrate larger intra-individual variability（IIV） than normal children.There is no difference in IIV with children of two ADHD subtypes,but the children with ADHD-I show increased IIV when the inter-stimulus interval is lengthened.（2） The children with ADHD-I show increased mu and sigma associated with the normal curve,suggesting a poor ability to process information;and the children with ADHD-C have more commission errors,indicating a response inhibition deficit.