双任务条件下青少年数字工作记忆能力的发展比较

Comparative Study on Adolescence's Digital Work Memory Capacity under Dual Tasks

采用双任务研究范式,对不同年级阶段290名青少年的数字工作记忆能力进行了测量,比较和分析了青少年数字工作记忆能力的发展变化特点。结果发现:(1)小学、初中、高中三个年级阶段青少年工作记忆测验得分的分布近似正态分布,各年级阶段青少年工作记忆能力的发展是有差别的;(2)随着年级的升高,青少年数字工作记忆的容量呈现出上升的趋势,在不同年级阶段,这种发展变化的速度是不同的;(3)不同性别青少年数字工作记忆能力不存在显著性差异。

Appling the dual-task paradigm, the study investigated and compared the development characteristics of digital work memory capacity of 290 adolescences from different grades. The results： （1） The distributions of work memory scores of adolescences in different grades were similar to normal distributions, and different graders showed different digital work memory capacities; （2） With the ascending of grade, the adolescences＇ digital work memory capacity were improving, while the developing speed in different stages were different; （3） There were no significant differences in digital work memory capacities between males and females.