stopping human's brain

heartless

Hello,
I'm wondering whether heavy electromagnetic stimulations of neurons can cause our brain to stop working at all, in sense that all the neurons stop receiving the messages from any other. Are there any known hypothesis how our brain could be possibly made during an evolution? And Does the brain, working upon the electric field connect us in some way into the deep roots of the universe?

Thanks,

Mk

This is called transcranial magnetic stimulation, and I don't know if you can stop neurons from working, but intense magnetic fields have been walked about before. How much space is between an NMR magnet and navigable space?

Moonbear

If you stop all neurons from signalling each other, you've just killed the person...lack of all neuronal activity would mean brain death.

*quantumcarl*

MRI imaging of the brain does not affect the brain's functionality. Magnetic Resonance Imaging uses powerful electric magnets to create images of the brain. To my knowledge, there haven't been any reported side-affects of MRI or FMRI (Functional Magnetic Resonance Imaging).

Most basic explanations of NMR and MRI will say that the nuclei align parallel or anti-parallel with the static magnetic field; however, because of quantum mechanical reasons beyond the scope of this article, the individual nuclei are actually set off at an angle from the direction of the static magnetic field, although the bulk collection of nuclei can be partitioned into a set whose sum spin are aligned parallel and a set whose sum spin are anti-parallel.

and....

Guidance
Safety issues, including the potential for biostimulation device interference, movement of ferromagnetic bodies and incidental localized heating have been addressed in the American College of Radiology's 'White Paper on MR Safety' which was originally published in 2002 and expanded in 2004.

From: http://en.wikipedia.org/wiki/Magnetic_resonance_imaging

_____________________________________________________________

Fruit flies like a banana. Time flies like an arrow.

Mk

Not to be confused with nuclear magnetic resonance magnetic field generation techniques. NMR magnets are the strongest on Earth produced so far, with the record right now being 4-5 Tesla. Wow. strong.

Mk

Oh, MRI utilizes NMR.

NateTG

Actually labs get up to 40T+ sustained, and 850+ pulsed.

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Moonbear Recognitions: Gold Member Science Advisor Staff Emeritus	If you stop all neurons from signalling each other, you've just killed the person...lack of all neuronal activity would mean brain death.

NateTG Recognitions: Homework Help Science Advisor	Actually labs get up to 40T+ sustained, and 850+ pulsed.