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    Digital Drugs or Binaural beats or Binaural Tones are auditory processing artifacts, or apparent sounds, the perception of which arises in the brain independent of physical stimuli. This effect was discovered in 1839 by Heinrich Wilhelm Dove.

    thayermm, alexbfree, grace mcdunnough, and 16 other people added this photo to their favorites.

    1. jasecampbell 73 months ago | reply

      Congratulations! Your photo has received the Amber Award from FotoVotr. It has been selected from the Flickr community because of its interest and popularity. For more information, please visit the FotoVotr Amber Group. We would be honored to have you join us!

    2. reneemcg2 35 months ago | reply

      I used this interesting picture to illustrate my blog post # 0010 at and gave you credit on the Photo Credits page. Thanks for such a great photo!

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