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A Doubt On Working on Heart And Brain System

  1. Sep 26, 2012 #1
    Hello!!

    The other day, i was referring to some comic book and it said something about telepathy which made me wonder if the heart and brain really emit signals thaat are powerful enough to be able to be caught or processed? if yes, how... Elaborate help shall be acknowledged...

    Thanks
     
  2. jcsd
  3. Sep 26, 2012 #2

    atyy

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    Science Advisor

  4. Sep 26, 2012 #3

    Ryan_m_b

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    Staff: Mentor

    The brain and heart, like any electrical system, generate an electromagnetic field that can be detected but that doesn't mean that thoughts, feelings and memories can be decoded from this. There's a lot of work going on with fMRI machines that can give some indication of what someone is thinking but that's an active scan rather than detecting something being given off normally.
     
  5. Sep 26, 2012 #4
    fMRI means? i know about MRI but what's fMRI?
     
  6. Sep 26, 2012 #5

    Pythagorean

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    Gold Member

    fMRI = functional MRI.

    Basically a time-series of MRI's with a BOLD (blood oyxgen level dependent) analysis tacked on that associates brain activity with blood flow. It turns MRI pictures into a movie while sensing changes in time to show the dynamical story of the movie.
     
  7. Oct 9, 2012 #6
    Interestingly, a pioneer of EEG (Hans Berger) was originally motivated into studying electric fields from the brain to see if they could explain apparent psychic phenomena. The answer is no, the signal is not strong enough for brains to interact like that, but crucially they ARE strong enough to be measured, as in electroencephalography (EEG, measuring brain generated electric fields on the scalp) or magnetoencephalography (MEG, measuring brain-generated magnetic fields on the scalp). The heart and muscles createstronger electric fields, captured by electromyography (EMG - muscles) and electrocardiography (ECG - heart). These techniques are all used clinically and for research.
     
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