Guest guest Posted December 5, 2004 Report Share Posted December 5, 2004 Cz is over the motor cortex, while C3 and C4 are over the sensory cortex. Often better for movement issues. Pete > > From: " Donna Creasy " <donnacreasy@...> > Date: 2004/12/04 Sat PM 09:36:42 EST > > Subject: C3, CZ & C4 > > Would it be effective to train at CZ, rather than C3/C4? Quote Link to comment Share on other sites More sharing options...
Guest guest Posted December 5, 2004 Report Share Posted December 5, 2004 Pete, I'm not sure I understand the CZ - motor strip and C3/C4 - sensory strip designation. I've always assumed that C3 and C4 were in the margins of the sensory and motor strips in each hemisphere. Ed Hamlin Quote Link to comment Share on other sites More sharing options...
Guest guest Posted December 5, 2004 Report Share Posted December 5, 2004 Ed, If you look at a picture of the brain, you'll note that the central sulcus, which divides the front from the back runs in a chevron shape across the center of the head. It veers toward the rear in the middle. The sensory motor cortex runs about an inch on either side of the line, sensory behind it and motor in front. Hence, at C3 and C4, you are placing the electrodes behind the sulcus, in the sensory cortex, while at Cz you are actually in front of it, in the motor cortex. Pete > > From: EDH9494@... > Date: 2004/12/05 Sun PM 08:46:09 EST > > Subject: Re: C3, CZ & C4 > > Pete, > I'm not sure I understand the CZ - motor strip and C3/C4 - sensory strip > designation. I've always assumed that C3 and C4 were in the margins of the > sensory and motor strips in each hemisphere. Ed Hamlin > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted December 6, 2004 Report Share Posted December 6, 2004 Hi Pete, I know we have to do this since it's all we can do, but site placement assumes much more uniformity in brains than I've actually seen among real brains. Most of them didn't look like the illustrations. Ed Quote Link to comment Share on other sites More sharing options...
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