A study published in the Journal of Applied Research in Memory and Cognition casts doubt over claims that enrolling in Cogmed Working Memory Training program could improve the memory and overcome underachievement of children who struggle with attention problems caused by poor working memory.
The target article authors Zach Shipstead, Kenny L. Hicks, Randall W. Engle, all from the Georgia Institute of Technology, review the research that is used to back up the claims of Cogmed. They argue that many of the problem-solving or training tasks are not related to working memory, many of the attention tasks are unrelated to problems such as ADHD, and that there is limited transfer to real-life manifestations of inattentive behavior. They conclude succinctly: "The only unequivocal statement that can be made is that Cogmed will improve performance on tasks that resemble Cogmed training."
Advertisement"People deserve to hear both sides of the story before they invest money in products like Cogmed," says lead author Zach Shipstead.
Not all researchers agree with the arguments of Shipstead et al. For instance, in one of the commentaries in reply, Torkel Klingberg of the Karolinska Instituet in Sweden states that "Shipstead et al criticizes these studies with three different arguments: [...] None of these arguments holds."
Two commentary authors, Charles Hulme and Monica Melby-Lervåg, who have previously questioned the evidence for Cogmed in a 2012 meta-analysis, and whose claims Cogmed directly address on their website, are firmly in support of the target article, and provide further meta-analysis in support of their shared conclusions with Shipstead et al.
"Having this debate in a scholarly journal is important because it provides scientists and the public with a more nuanced version of the truth, which percolates out of competing, evidence-based arguments," says Ronald Fisher, Editor-in-Chief of JARMAC, and professor of psychology at Florida International University.
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