Brain imaging shows playing Tetris leads to a thicker cortex and may also increase brain efficiency, according to research published in the open access journal BMC Research Notes. A research team based in New Mexico is one of the first to investigate the effects of practice in the brain using two image techniques.

Researchers from Mind Research Network in Albuquerque used brain imaging and Tetris to investigate whether practice makes the brain efficient because it increases gray matter. For 30 minutes a day over a three-month period, 26 adolescent girls played Tetris, a computer game requiring a combination of cognitive skills. The girls completed both structural and functional MRI scans before and after the three-month practice period, as did girls in the control group who did not play Tetris. A structural MRI was used to assess cortical thickness, and a functional MRI was used to assess efficient activity.

The girls who practiced showed greater brain efficiency, consistent with earlier studies. Compared to controls, the girls that practiced also had a thicker cortex, but not in the same brain areas where efficiency occurred

 

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Brain trainers are increasing in popularity, they are marketed as helping to improve memory, keep the mind fit and active and in some cases to prevent dementia. Recently the consumer group Which looked at the effectiveness of several devices and their claims. The panel of experts concluded that none of the claims was supported by peer-reviewed research in a recognised scientific journal and much of it was flawed. But there is evidence that exercise, a healthy diet and an active social life help keep an agile mind

Which editor Martyn Hocking said: ‘If people enjoy using these games, then they should continue to do so – that’s a no-brainer. But if people are under the illusion that these devices are scientifically proven to keep their minds in shape, they need to think again.’ link to continue reading
Source: Which