Mean response times, variability, and skew in the responding of ADHD children: a response time distributional approach

被引：452
作者：
Leth-Steensen, C
Elbaz, ZK
Douglas, VI
机构：
[1] No Michigan Univ, Dept Psychol, Marquette, MI 49855 USA
[2] McGill Univ, Dept Psychol, Montreal, PQ H3A 1B1, Canada
来源：
ACTA PSYCHOLOGICA | 2000年 / 104卷 / 02期
基金：
加拿大自然科学与工程研究理事会; 英国医学研究理事会;
关键词：
attention deficit disorder; diagnosis; mathematical modeling; methodology; reaction time;
D O I：
10.1016/S0001-6918(00)00019-6
中图分类号：
B84 [心理学];
学科分类号：
04 ; 0402 ;
摘要：
Response time (RT) distributions from three fixed foreperiod conditions (2, 4, and 8 s) in a warned four-choice RT task were obtained for a group of boys with attention-deficit/hyperactivity disorder, combined type (ADHD; n = 17) and for two groups of normal control boys (age-matched, n = 18, and younger-aged, n = 10). Quantitative measures of distributional shape were derived by fitting the ex-Gaussian distributional model to the individual RT data. Statistical results indicate that the ADHD distributions differ from the age-matched control distributions with respect to the size of the tail (larger for the ADHD boys), but differ from the younger control distributions with respect to the location of the leading edge (slower for the younger control boys). Receiver operating characteristic (ROC) results reveal that the ex-Gaussian exponential component is highly diagnostic of the ADHD boys. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：167 / 190
页数：24
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