On 2014 Nov 20, Daniel J Simons commented:

This paper reports data from the same training study that was previously reported in PLoS One: http://www.plosone.org/article/info:doi/10.1371/journal.pone.0092269#pone-0092269-g002. It reports results from different outcome measures, but it also reports the results from the earlier paper (including the same statistics and the same data figure: Figure 3b is nearly identical to Figure 2b in the PLoS paper). The paper does not acknowledge that these data were previously published. The training data and results also are presented in both places without acknowledgment of the overlap. The paper does not explicitly state that these are results from the same intervention that was published previously.

I have posted this comment on the Frontiers website as well, and I have written about these issues in more depth at http://blog.dansimons.com/2014/11/hi-bar-more-benefits-of-lumosity.html. I also wrote about problems with the PLoS paper in an earlier post-publication review (which is why I noticed the overlap): http://blog.dansimons.com/2014/04/hi-bar-benefits-of-lumosity-training.html. The Frontiers paper suffers from the same problems as the earlier paper, given that it was the same intervention.

On 2014 Nov 20, Daniel J Simons commented:

This paper reports data from the same training study that was previously reported in PLoS One: http://www.plosone.org/article/info:doi/10.1371/journal.pone.0092269#pone-0092269-g002. It reports results from different outcome measures, but it also reports the results from the earlier paper (including the same statistics and the same data figure: Figure 3b is nearly identical to Figure 2b in the PLoS paper). The paper does not acknowledge that these data were previously published. The training data and results also are presented in both places without acknowledgment of the overlap. The paper does not explicitly state that these are results from the same intervention that was published previously.

I have posted this comment on the Frontiers website as well, and I have written about these issues in more depth at http://blog.dansimons.com/2014/11/hi-bar-more-benefits-of-lumosity.html. I also wrote about problems with the PLoS paper in an earlier post-publication review (which is why I noticed the overlap): http://blog.dansimons.com/2014/04/hi-bar-benefits-of-lumosity-training.html. The Frontiers paper suffers from the same problems as the earlier paper, given that it was the same intervention.