目的:探查ADHD儿童的短时距再现能力。方法:计算机个别测试,经过专业门诊诊断的ADHD儿童以及正常对照组儿童各20名分别完成6秒和12秒的短时距视觉再现任务;结果:(1)ADHD儿童的短时距再现能力6秒成绩高于正常儿童(6137.3±1007.4/6056.5±849,F=12.57,P〈0.05),12秒成绩低于正常儿童(10910.9±2149.6/11201.5±1786,F=8.2l,P〈0.05)。(2)ADHD儿童的6秒和12秒上的再现误差高于正常对照组(8.93±10.97/4.25±9.25,F=14.34,P〈0.05,17.87±13.66/14.85±10.45,F=9.84,P〈0.05),对6秒再现的准确性高于12秒;(3)ADHD儿童在6秒和12秒再现误差百分比均高于正常儿童(13.4%/8.47%,x^2=7.58,P〈0.01,27.2%/18.9%,x^2=4.72,P〈0.01)。结论:ADHD儿童的短时距再现能力明显比正常儿童差,时距长度是影响儿童时距再现的重要因素。
Objective: To investigate the ability to reproduce the short- duration of Children with ADHD; Methods: 20 children with ADHD and 20 normal controls participated in the study. Results: ( 1 ) There was a significant difference between Children with ADHD and the controls during the task of visual reproduction of 6s and 12s (6137. 3 ± 1007. 4/6056. 5 ±849, 10910. 9 ±2149. 6/11201.5 ± 1786) ; (2) Compared with the normal children, children with ADHD tend to overestimate 6s and underestimate 12s ( 8.93 ± 10. 97/4.25 ± 9. 25, F = 13. 34, P 〈 0. 05, 17. 87 ± 13. 66/14. 85 ± 10. 45, F = 9. 84, P 〈 0. 05 ) ; ( 3 ) Reproduction of 6s was less difficult than that of was 12s (13.4%/8.47%, x^2=7.58, P〈0.01, 27.2%/18.9, x^2=4.72, P〈0.01) . Conclusion: Children's ability of reproduction of short duration is greatly influenced by attention and duration, and there's a great difference between the abilitv of children with ADHD and that of the normal group.