I was going to send Flexy an email with a link to the Asperger's quiz we were discussing at dinner last night, until I remembered that that's what LJ is for
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That position is not one that I'm used to in magnets (**snicker**), we are usually doing head scans. I will say that there are certain kinds of scans we do (Echo Planar Imaging) that will induce a current in a long nerve which runs down one's back, exciting a muscle, causing it to twitch in time w/ the scan. Happens to me every time I do the scan. I've never heard of diagnostic scans inducing girly parts, but it's not out of the question. It would all have to do with the direction & strenght of changing fields relative to the direction and length of the nerve.
Also, moving your head quickly changing fields (most only notice it on 4T scanners and up, yours was probably 1.5T) can cause disorientation, random flashes of light behind behind your eyelids, and a metallic taste in one's mouth. This has nothing to do with a scan itself (where changes in fields are relatively miniscule), rather they have to do with pulling your head away from the bore (where the spatial field gradients are steepest) too quickly, thus putting your head from 4T to 1T in a second.
That's really interesting. I got the degree in Cog Sci, but I only did one year of experimental Psych grad school. It's cool to hear about this kind of side effect.
The lady told me that about 1/3 of her patients ever felt anything at all.
Surprising to hear that as many as 1/3 of patients would feel something. Diagnostic scans aren't usually pushing boundaries as far as power/time, like time-critical research scans might do (ie. you need 1 3D snapshot of the head every 3 seconds).
Also, moving your head quickly changing fields (most only notice it on 4T scanners and up, yours was probably 1.5T) can cause disorientation, random flashes of light behind behind your eyelids, and a metallic taste in one's mouth. This has nothing to do with a scan itself (where changes in fields are relatively miniscule), rather they have to do with pulling your head away from the bore (where the spatial field gradients are steepest) too quickly, thus putting your head from 4T to 1T in a second.
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The lady told me that about 1/3 of her patients ever felt anything at all.
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