Transfer effect of working memory span training in college students: evidence from behavioral and magnetic resonance imaging
10.3760/cma.j.cn371468-20200506-01339
- VernacularTitle:大学生工作记忆广度训练迁移效应的行为学与影像学研究
- Author:
Jie SONG
1
;
Wan ZHAO
;
Qiumei ZHANG
;
Jun LI
Author Information
1. 上海市青浦区精神卫生中心 201721
- From:
Chinese Journal of Behavioral Medicine and Brain Science
2020;29(10):909-914
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To explore the transfer effect of working memory span task training on n-back task and its accordant brain mechanism.Methods:First, a randomized controlled experiment was carried out in 60 college students.The training group ( n=30) received adaptive training on a working memory span task and the control group ( n=30) received low difficulty repeated practice.The difference on 2-back task between the two groups at posttest and pretest was compared.Next, 60 college students who received adaptive training were divided into high transfer group ( n=30) and low transfer group ( n=30) according to their improvement median on 2-back task.The differences of brain activation across the whole brain between the two groups at posttest and pretest were compared. Results:Compared with before training, the accuracy of the 2-back task in the training group increased significantly after training( F=21.45, P<0.001), in which the training group increased by (0.15±0.18). While the control group increased by (0.03±0.17), and the difference was not significant( F=0.99, P=0.327). Compared with the low transfer group, the activation of the right striatum in the high transfer group increased significantly (corrected P=0.028). There was a significant correlation between the change of striatum activation and the change of 2-back task accuracy ( R2=0.084; F=5.21, P=0.025). Conclusion:The working memory span training effect can be transferred to n-back task, and the striatum plays an important role in this transfer effect.
