Working memory training improves fluid intelligence

A common question from parents who are considering a program like Fast ForWord or Cogmed to improve foundational cognitive skills centers around when they might see improvements in their children. While parents frequently observe immediate improvements in skills like attention, comprehension, and general ease of reading, sometimes these gains are not immediately apparent. This is because the programs are developing cognitive skills (such as working memory and processing speed) that are critical for developing learning, attention and reading skills. The programs support the development of more complex learning and reading skills, but don’t directly train them.

A 2008 study from the University of Michigan, which looked at measures of fluid intelligence before and after Cogmed training, supports this idea. The LA Times recently reported on the study:

When the children were tested at the end of the month of training, the Michigan researchers at first found scant differences between the group that got the working-memory training and the general knowledge group. Although those who had received working-memory training were better at holding several items in mind for a short while, on a test of abstract reasoning — fluid intelligence — they were, as a group, no smarter than the control group.

But then the researchers took a closer look and noticed a clear pattern: The children who had improved the most on the memory-training task did indeed perform better on the fluid intelligence test. And three months later, they still did better as a group than both the control group and the children who hadn’t improved.

The University of Michigan study was published in the Proceedings of the National Academy of Sciences. 

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