超重/肥胖儿童与正常体重儿童视空间工作记忆的比较：食物线索的影响

Comparison of Visual Memory Working Memory between Overweight/Obese Children and Normal Weight Children: The Influence of Food Cues

目的:比较10岁超重/肥胖儿童与正常体重儿童在视空间工作记忆广度及刷新表现上的差异,并探究食物线索对其的影响。方法:采用2(材料类型:食物图片、空白图片)×2(体重状态;超重/肥胖、正常体重)两因素混合设计,测量60名儿童在改编的点矩阵任务和活动记忆任务中的表现并比较其差异。结果:与正常体重儿童相比,超重/肥胖儿童在食物工作记忆广度任务中的表现更差,在一般工作记忆广度任务中二者表现无显著差异;超重/肥胖儿童在一般刷新任务中的表现更差,在食物刷新任务中二者表现无显著差异。结论:超重/肥胖儿童较正常体重儿童对食物刺激的工作记忆广度更小,对一般刺激的工作刷新能力更弱。

Objective:To explore the difference of working memory span and updating performance between 10-yearold overweight/obese children and normal weight children,and the effect of food-specific cues on their performance.Meth?ods:This study carried out the experiment with 2(material types:food pictures vs.blank pictures)×2(weight status:over?weight/obesity vs.normal weight)two factors mixed design to examine 60 children’s performance in the modified dot matrix task and running memory task.Results:Compared to normal weight children,overweight/obese children got worse scores in food working memory span task and blank working memory updating,but there was no significant difference in blank working memory span and food working memory updating.Conclusion:Overweight/obese children have shorter working memory span of food stimulation and less ability to working memory updating of general stimulation than normal weight chil?dren.