Data for “Training and transfer effects of working memory updating training in male abstinent long-term methamphetamine users”

Methamphetamine use is associated with cognitive effects, as cause or effect of the drug (re-)use. Enhancement of cognitive functioning, especially of executive functioning through targeted trainings might alleviate these effects. The present study assessed the effect of an adaptive working memory updating (WMU) training in male long-term methamphetamine inpatients (n=16) on various executive functions. Before and after training, the participants completed a number of tasks measuring WMU, interference control, response inhibition, and cognitive flexibility. The inpatients showed a clear performance improvement across training sessions. Relative to an active control group (n=16), the trained participants further showed a beneficial near-transfer effect in the form of enhanced performance on the non-trained WMU task. No evidence of training-induced effects on any of the other tasks was seen, reflecting the absence of far transfer. These results are similar to those seen in other cognitive training studies in both healthy and clinical populations. They provide evidence for a fundamental ability to learn and for applying the changed capacity or learned skill to similar, novel contexts, which may have clinical implications.

The data file concerns an SPSS data file containing pre-processed data. The data consist of each participant’s score on the outcome measure(s) for each of the tasks used (n-back, flanker, go/no-go, Stroop, two running memory, and switching tasks), which were used to perform repeated measures analyses of variance to analyze training progress, traditional and Bayesian analyses of covariance to assess the evidence for training-induced transfer effects, and a Spearman correlation analysis to assess to what extent individual variation in training progress is linked to progress on the WMU transfer task, as described in the target article. The meaning of each column in the data file is described under the tap Variable View --> Label. The raw data (in eprime format) on which the pre-processed data are base are available from the corresponding author upon request.

甲基苯丙胺的使用与认知效应相关，无论是作为药物（再）使用的原因还是结果。通过针对性的训练来增强认知功能，尤其是执行功能，可能有助于缓解这些效应。本研究评估了一种自适应工作记忆更新（WMU）训练对长期甲基苯丙胺依赖男性患者（n=16）在多种执行功能上的影响。在训练前后，参与者完成了一系列测量WMU、干扰控制、反应抑制和认知灵活性的任务。住院患者在训练过程中表现出明显的性能提升。与活跃对照组（n=16）相比，接受训练的参与者进一步显示出有益的近端迁移效应，表现为非训练WMU任务上的性能增强。未观察到训练对其他任务的任何影响，这反映了没有远端迁移。这些结果与在健康和临床人群中的其他认知训练研究的结果相似。它们为基本的学习能力以及将改变的能力或学习技能应用于相似的新环境提供了证据，这可能具有临床意义。

数据文件涉及一个SPSS数据文件，包含预处理数据。数据包括每个参与者在每个任务（n-back、flanker、go/no-go、Stroop、双运行记忆和切换任务）的成果度量上的得分，这些任务被用于进行重复测量方差分析以分析训练进度，传统和贝叶斯协方差分析以评估训练引起的迁移效应的证据，以及斯皮尔曼相关分析以评估训练进度中个体差异与WMU迁移任务进度之间关联的程度，正如目标文章所述。数据文件中每列的意义在“变量视图”下的标签中描述。预处理数据所基于的原始数据（eprime格式）可从相应作者处请求获得。