Dear Anish Mittal a good trick would be to stimulate electrically the nerve you want to locate its corresponding move so as you have the location of the somatosensory cortex. for example, if you are interested in hand moves, then the electric stimulation of the median nerve on the wrist or ulnar or radial (depending on the finger) will help. Maria
Maria L. Stavrinou, PhD Department of Medical Physics School of Medicine University of Patras, Greece tel. 0030-2610-996115 (lab) http://biosignal.med.upatras.gr/people/mstavrinou.html ----- Original Message ----- From: Anish Mittal To: [email protected] Sent: Saturday, June 09, 2007 5:58 AM Subject: [BCI-info] EEG electrode placement I got to know that the electrodes have to be placed in the motor cortex area so as to detect the movements from various body parts like face,foot,tongue,arms etc.My EEG machine has only 19 electrodes so i placed all the electrodes in motor cortex region rather than placing them as in 10-20 system but i got all the EEG signal changes at the same set of electrodes. Can anyone help me out how to distinguish the signals and why the signals were not coming on electrodes corresponding to that concerned organ.Please guide how to locate the electrode positions for detecting these movements Anish Mittal Btech electrical IIT Roorkee ------------------------------------------------------------------------------ _______________________________________________ BCI-info mailing list [email protected] https://mlist.tugraz.at/mailman/listinfo/bci-info ------------------------------------------------------------------------------ No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.472 / Virus Database: 269.8.11/837 - Release Date: 06/06/2007 14.03
_______________________________________________ BCI-info mailing list [email protected] https://mlist.tugraz.at/mailman/listinfo/bci-info
