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Medical Brain waves

  1. Jan 23, 2007 #1
    i have started reading about brain waves.......... so i am just a newbie here.......there were certain questions i had about it......

    1. Brain Waves can be detected by EEGs only, or what??? till now, what is the smallest component till yet(in size) that can detect brain waves???

    2. Is there a way to change the state of ones brain from one level to another without any side effects ( i am not talking about drugs).... say some electrical signal????

    3. i was thinking about making an alarm clock based on the state of ones brain during his/her sleep?? has this been done before???

    a quick answer would be appreciated........thanks
     
  2. jcsd
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