利用压缩网络摄像头视频对多动方面进行客观测量。
An objective measure of hyperactivity aspects with compressed webcam video.
机构信息
Department of Child and Adolescent Psychiatry, University Hospital Münster, Schmeddingstrasse 50, 48149 Münster, Germany.
出版信息
Child Adolesc Psychiatry Ment Health. 2015 Sep 10;9:45. doi: 10.1186/s13034-015-0076-1. eCollection 2015.
BACKGROUND
Objective measures of physical activity are currently not considered in clinical guidelines for the assessment of hyperactivity in the context of Attention-Deficit/Hyperactivity Disorder (ADHD) due to low and inconsistent associations between clinical ratings, missing age-related norm data and high technical requirements.
METHODS
This pilot study introduces a new objective measure for physical activity using compressed webcam video footage, which should be less affected by age-related variables. A pre-test established a preliminary standard procedure for testing a clinical sample of 39 children aged 6-16 years (21 with a clinical ADHD diagnosis, 18 without). Subjects were filmed for 6 min while solving a standardized cognitive performance task. Our webcam video-based video-activity score was compared with respect to two independent video-based movement ratings by students, ratings of Inattentiveness, Hyperactivity and Impulsivity by clinicians (DCL-ADHS) giving a clinical diagnosis of ADHD and parents (FBB-ADHD) and physical features (age, weight, height, BMI) using mean scores, correlations and multiple regression.
RESULTS
Our video-activity score showed a high agreement (r = 0.81) with video-based movement ratings, but also considerable associations with age-related physical attributes. After controlling for age-related confounders, the video-activity score showed not the expected association with clinicians' or parents' hyperactivity ratings.
CONCLUSIONS
Our preliminary conclusion is that our video-activity score assesses physical activity but not specific information related to hyperactivity. The general problem of defining and assessing hyperactivity with objective criteria remains.
背景
由于临床评分与活动水平之间的关联度低且不一致、缺少与年龄相关的常模数据以及技术要求较高，目前在注意缺陷多动障碍（ADHD）的评估中，并未将身体活动的客观测量纳入临床指南。
方法
本研究引入了一种新的使用压缩网络摄像头视频的身体活动客观测量方法，该方法应较少受到与年龄相关的变量影响。预测试确定了测试 39 名 6-16 岁儿童（21 名临床 ADHD 诊断，18 名无 ADHD 诊断）的临床样本的初步标准程序。被试在完成标准化认知表现任务时被拍摄 6 分钟。我们的基于网络摄像头视频的视频活动评分与学生的两个独立基于视频的运动评分、临床医生（DCL-ADHS）对注意力不集中、多动和冲动的评分（给出 ADHD 临床诊断）以及父母（FBB-ADHD）和身体特征（年龄、体重、身高、BMI）进行了比较，采用平均值、相关性和多元回归。
结果
我们的视频活动评分与基于视频的运动评分具有高度一致性（r=0.81），但与与年龄相关的身体属性也有很大关联。在控制了与年龄相关的混杂因素后，视频活动评分与临床医生或父母的多动评分并未表现出预期的关联。
结论
我们的初步结论是，我们的视频活动评分可评估身体活动，但不能评估与多动相关的特定信息。用客观标准定义和评估多动的一般问题仍然存在。
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