Hi, David, I asked Valery about this problem. He has a new version of the program that manages this problem. He will send it on the next week. The new version will include an option for using LORETA with Win EEG!!! Juri VD> Hello VD> i am going through an EEG file that i recorded using the Mitsar and after VD> completing the automatic EOG correction i wanted to go through the raw trace VD> myself and cut out any very noisy sections. I Managed to do this using the VD> mouse and the scissors symbol on the tool bar. When i do this a bold blue VD> line appears at the bottom of the raw EEG file. VD> However, when i then run the analysis it gives exactly the same output as a VD> raw EEG that i have not gone through and removed the additional artefacts. VD> Thus i must be missing something out. I have checked the manual but can find VD> no reference to manual artefact rejection using the cut tool. Can you help VD> me please, what do i have to do to make sure that the sections i have cut VD> are not included in the analysis? VD> thanks VD> david VD> David J Vernon PhD VD> Dept. of Cognitive Neuroscience & Behaviour VD> Imperial College London VD> St Dunstan's Road VD> London VD> W6 8RP VD> Tel: 44 (0) 208 383 0584 VD> Fax: 44 (0) 208 846 1670 VD> -----Original Message----- VD> From: Juri D. Kropotov [mailto:kropotov@xxxxxxxxxx] VD> Sent: 03 July 2003 16:05 VD> To: Vernon, David VD> Subject: Re[2]: data issues VD> OK, David. VD> I'll check it and ask my server to enlarge my mail-box. VD> Juri VD>> Hi Juri, VD>> i cannot send you the data files, as everytime i have tried they just VD> come VD>> back undelivered. I checked with out technical people and they say its VD>> because your mailbox is to small to accept a 3.5mb file. I checked this VD> out VD>> by sending the file to Annie and she received it. I tried again to send VD> one VD>> to you and again it was returned. Do you know if your mailbox can accept VD>> files as large as 3.5mb if not the only way i can see of getting you the VD>> data will be to send it over on a cd, not ideal but i would really value VD>> your input VD>> david VD>> David J Vernon PhD VD>> Dept. of Cognitive Neuroscience & Behaviour VD>> Imperial College London VD>> St Dunstan's Road VD>> London VD>> W6 8RP VD>> Tel: 44 (0) 208 383 0584 VD>> Fax: 44 (0) 208 846 1670 VD>> -----Original Message----- VD>> From: Juri D. Kropotov [mailto:kropotov@xxxxxxxxxx] VD>> Sent: 02 July 2003 16:53 VD>> To: Frick, Ann VD>> Cc: 'Megan Kelley (E-mail)'; Vernon, David VD>> Subject: Re: data issues VD>> Dear Annie, VD>> I've not got any EEG files from David and I am waiting to get it from VD>> you. VD>> You mentioned TOVA for ERPs. Please use the animal GO/NOGO task I VD>> gave to you. We have 250 children data base for this task. VD>> As far as September concerns, I am going to Houston at iSNR conference VD>> and afraid that it will be exactly the third week of September. Let VD>> us think about other dates. VD>> All the best, Juri FA>>> Dear Juri--I have been trying to send you the following email and VD> zipped FA>>> data files. This hasn't been working. So here is the original VD>> email--files FA>>> to follow as soon as I can figure out how. FA>>> AF FA>>> Dear Juri, FA>>> I believe David sent you two files for a boy, TG, dob 12/10/1990. I VD>> think FA>>> he is clearly in the 10% group that Chabot and Serfontein talk about. VD>> He FA>>> does have high frontal beta. In fact, during recording, I was VD> wondering VD>> if FA>>> it wasn't a very high alpha, but it doesn't attentuate with eyes open. FA>>> However, all the children we've recorded show a pattern that is VD>> consistent FA>>> and puzzling. They all have extremely high amplitude EEGs relative to VD>> the FA>>> database. We are getting extremes in z-scores for both absolute and FA>>> relative power. Absolute readings are very high magnitude across VD>> locations FA>>> in almost all frequency bands (>3sd) (least in alpha and theta). VD>> Relative FA>>> power scores are extremely low across most all frequency bands (>-3sd). FA>>> According to the database, these children are so extremely abnormal is VD>> these FA>>> regards, yet normal in the criteria for our study (theta/beta ratios). VD>> And FA>>> the results are consistent for all 4 of the children we have recorded VD> at VD>> the FA>>> children's center. However, the adults we have recorded in our lab VD>> rooms FA>>> look as we would expect them to. FA>>> We get these same results whether we EOG correct and save as a .dat VD> file VD>> or FA>>> import the Mitsar file into NeuroGuide and use auto-select. We have VD> not FA>>> manually artefacted these files at all. FA>>> These data are so peculiar that I am concerned that we are doing VD>> something FA>>> wrong. On a more positive note, the ERPs for the TOVA are running VD> well. VD>> I FA>>> have yet to sort out audio for the oddball task, but that should go VD>> easily. FA>>> We are interviewing for David's position right now. It is quite a blow VD>> to FA>>> us that he is leaving. I am planning to work through the rest of the VD>> time FA>>> he is here and until after a replacement starts in. Would the 3rd week VD>> in FA>>> Sept be a reasonable time to visit St. Petersburg. I have friends from VD>> home FA>>> who want to go. I'd love to see St P and stop by the Institute as VD> well. FA>>> Thanks for any help. FA>>> All the best, FA>>> annie FA>>> Ann Frick FA>>> Imperial College London FA>>> Dept of Cognitive Neuroscience and Behaviour FA>>> Charing Cross Campus FA>>> St Dunstan's Road FA>>> London W6 8RP FA>>> phone 0208-846-7281 FA>>> fax 0208-846-1670 -- Best regards, Juri mailto:kropotov@xxxxxxxxxx