• Auditory display for deep brain activation: Hypersonic effect 

      Yagi, R.; Nishina, E.; Kawai, N.; Honda, M.; Maekawa, T.; Nakamura, S.; Morimoto, M.; Sanada, K.; Toyoshima, M.; Oohashi, T. (Georgia Institute of TechnologyInternational Community on Auditory Display, 2002-07)
      We have found that sounds containing high-frequency components above the human audible range (20kHz) significantly increase the regional blood flow in the deep-lying brain structure and the power of the alpha frequency ...