Kawamoto flew to Sendai, Japan to ask Dr. Ryuta Kawashima, the inspiration for the Brain Age series, to ask if this would be all right.
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The puzzles featured in both the Literature and Science editions were created by Ryuta Kawashima.
Unlike the Brain Age series, where the face of creator Ryuta Kawashima prominently appears in the game, Ishigaki's face does not appear in Flash Focus.
This game, like Brain Age, was supervised by Professor Ryuta Kawashima of Tohoku University.
Ryuta Kawashima | Hiroshi Kawashima | Eiji Kawashima | Ai Kawashima | Yamamotoyama Ryūta | Umika Kawashima | Ryūta Kawashima | Dr. Kawashima's Brain Training: How Old is Your Brain? |
The Brain Age: Train Your Brain in Minutes a Day! software program, produced by Ryūta Kawashima for the Nintendo DS portable video game system, contains an automated Stroop Test administrator module, translated into game form.
Ryuta Kawashima (川島 隆太), neuroscientist, currently resident professor, the supervisor of Nintendo DS gamesofts; "Brain Age: Train Your Brain in Minutes a Day!" and "Dr. Kawashima's Brain Training: How Old is Your Brain?"