ynic-users

ynic-users@ynic.york.ac.uk

1 participants
2849 discussions

advertising for participants
by rem 10 Nov '06

10 Nov '06

Dear YNiC users A new page (not yet published) will be available on the YNiC website where researchers can advertise for participants. If you would like to advertise your study on the YNiC "Volunteers" page, please provide the following information to either me or your SLO: 1) The project title and a contact name 2) The email address of the contact 3) A few sentences describing your project 4) How long the experiment will take 5) Participant payment There will also be a link to the YNiC "Volunteers" page from the psychology department website. Furthermore, if you have specific requirements of participants (e.g. right-handed, normal vision), we can query the pool of volunteers in the YNiC database to produce a list of suitable volunteers for your study. I will send an email to all the volunteers on the list on the behalf of the user. Users will need to provide details of their study and a contact email so that interested volunteers can contact them directly. If you have any questions about this, please don't hesitate to contact me. Rebecca -- ************************************************************************ Dr. Rebecca E. Millman Science Liaison Officer York Neuroimaging Centre The Biocentre York Science Park Heslington YO10 5DG Tel: +44 (0) 1904 567614 Fax: +44 (0) 1904 435356

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Structural study
by Tom Hartley 08 Nov '06

08 Nov '06

Dear All, I'm pleased to announced that we're about to start a new study which will look at the relationship between the size of the hippocampus and performance on a topographical memory task. The aim is to make use of MRI data collected in connection with previous and ongoing studies. We are looking to make contact with potential participants (healthy adults, aged 18-50) who have already had an MRI scan at YNiC or who will have one over the next 6-9 months. An additional constraint is that they should be available to take part in a brief (15-20 minute) psychological test later in the year. If you have already or are about to conduct a study with suitable participants and are willing to help, we would like to hear from you so that we can begin the process of contacting subjects and identifying studies in which they have participated. We aim to make this as easy for you and the potential participants as possible. There is a also a panel of volunteers who have agreed to be approached regarding future studies at YNiC, and we intend to approach these via the Director. To respond, please use the link below (please be careful not to "reply to all"!): mailto:t.hartley@psychology.york.ac.uk;rch504@york.ac.uk?subject=hvt:I-have- a-study You may yourself have had a scan and be interested in participating - if so, please contact us, and we can then begin the process of tracking down your scan and obtaining permission to analyze the data. There is no need to make a firm commitment at this stage, and as with all such studies, you would be free to withdraw at any time. If this fits you, please use the following link to reply to this message: mailto:t.hartley@psychology.york.ac.uk;rch504@york.ac.uk?subject=hvt:I-have- a-study Further information for potential participants is available at: http://www.neuroindex.org/images/b/bf/HVT_Information_revised.pdf Best wishes, Tom Hartley Rachel Harlow =================================== Dr Tom Hartley Dept. of Psychology t.hartley(a)psychology.york.ac.uk http://www-users.york.ac.uk/~th512 ext 2903

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YNiC Training Survey
by Gary Green 06 Nov '06

06 Nov '06

Dear YNiC Users We would like to get your feedback on when would be the most convenient time to run training sessions. Please can you take a few minutes to tick some boxes and make comments on the online form at https://www.ynic.york.ac.uk/user-resources/training-survey We will collate the information in two weeks time thanks -- Gary Green York Neuroimaging Centre The Biocentre York Science Park Innovation Way Heslington York YO10 5DG http://www.ynic.york.ac.uk tel. 01904 435349 fax 01904 435356 mobile 07986 778954

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Booking MEG and MRI
by Gary Green 06 Nov '06

06 Nov '06

Dear ynic-users It is good to see that many of you are now using the online booking form for MEG and MRI. https://www.ynic.york.ac.uk/user-resources/booking We hope the new procedure is easier than the old method of using email and/or phone. There is a small problem though which we would like to bring to your attention. When you use the online form, you should still wait for confirmation from Claire Fox by email that your session has been booked. This is because several people could, in theory, attempt to book the same hour. Another problem is that some people are attempting to book a session at night for the next day. This is not practical as we need to ensure that an operator is available, that the scanners are available and that all stimulus delivery issues, ethics, and consent are all in place. Please can we ask users to try and book their sessions before the Thursday of the week before they wish to use the scanners. Of course we do not want the scanners to be idle and the resource to be wasted, so, if you want to make a last minute booking and all the practical aspects of scanning are in place, then please ring Claire to discuss the possibility of using the scanners. The key thing then will be availability of operators. -- Gary Green York Neuroimaging Centre The Biocentre York Science Park Innovation Way Heslington York YO10 5DG http://www.ynic.york.ac.uk tel. 01904 435349 fax 01904 435356 mobile 07986 778954

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Update to document pages
by Gary Green 02 Nov '06

02 Nov '06

A geek's corner has been added to the beamforming pages https://www.ynic.york.ac.uk/docwiki/BeamformingMaths Details have been changed on the ynicGetEpoch page https://www.ynic.york.ac.uk/docwiki/ynicGetEpoch The artefact rejection page has been updated https://www.ynic.york.ac.uk/docwiki/Artifact_Rejection

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YNiC training
by Gary Green 01 Nov '06

01 Nov '06

Tomorrow, the annual one day resuscitation course is being run within YNiC. This is primarily for operators and staff at YNiC but if you feel that you might benefit from attending this course then there are a few places available for ynic-users. If you would like to attend please email claire.fox(a)ynic.york.ac.uk It will start at 9.30 and last until mid afternoon. -- Gary Green York Neuroimaging Centre The Biocentre York Science Park Innovation Way Heslington York YO10 5DG http://www.ynic.york.ac.uk tel. 01904 435349 fax 01904 435356 mobile 07986 778954

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trial datasets
by Michael Simpson 31 Oct '06

31 Oct '06

Dear all, when new users arrive at YNiC, some would like to practice using data analysis scripts before they record their own data. As such, we would like to document some of the paradigms that have already been recorded. We would not want to know in detail the specifics of your project, just the basics to allow for a sensible analysis. For example, the following may be enough: "In the data for project Pxxxx, responses were recorded in continuous mode to visual stimuli. There were four conditions which had the respective trigger codes 4150, 4152, 4154 and 4156. Triggers 4150 and 4152 had a group code of 2, and triggers 4154 and 4156 had group codes of 4. Participants made responses to some trials, which have a response code of 32. Suggested epochs for data analysis are 150ms pre-trigger and 900ms post-trigger. Data was recorded for participants Rxxxx, Rxxxy ... Rxyyx." With this information new Users could run a trial analysis without any necessary knowledge of your hypothesis, but enough information about your stimulus parameters to run practice analyses on your data. If you we be happy to provide this information about your data we would be most grateful. We would then put this in some shared space for all Users to access. If however you would like to give a more detailed account of your experiment, then this could contribute towards the initiative that Tony prompted in the email copied below. With thanks, Michael -- Dr Michael Simpson Science Liaison Officer York Neuroimaging Centre Innovation Way York YO10 5DG Tel: 01904 567614 Web: http://www.ynic.york.ac.uk *_*_*_*_*_*_*_*_*_*_*_*_*_*_*_*_*_*_*_*_*_*_*_*_*_*_*_*_*_*_*_*_*_ Copy of mail from Tony Morland date 25th October. Dear All, Since the first beamforming course a number of people have been asking questions like; What can beamforming really do? If I do this and get that, what does it mean? Is beamoforming precise enough to distinguish between activity in brain area A and B? If I do X will it result in data that can be analysed with beamforming? Can virtual electrode traces allow latencies to be measured in brain areas A and B and do they make sense? If I filter in this frequency band rather than that band why do I get this result? The answers to many of these questions are empirical and although Will et al have been striving to test, retest and validate the methods, there will always be questions that can't quite be answered unless more data is acquired/analysed. It appears necessary therefore to start bench marking the beamforming methods that are available. The aim is to undertake a series of empirical studies that will reflect, in broad terms, the types of paradigm used by investigators. My personal preference would be for a set of basic experiments to be devised for which results are predictable and could be compared with previous research. I accept that this is a conservative aim, but the data sets acquired are likely to be the most informative about the capabilities of the beamforming analysis tools. The data acquired would also offer us an excellent resource for training any researchers wishing to undertake investigations using beamforming. Before devising new experiments it would be worth reviewing previous studies undertaken at YNiC to see whether they can be used to bench mark the beamforming methods. To this end, I would be grateful if you could provide me with details of data that you think are suitable for bench marking beamforming. The most helpful form for the information would be the following: Project Number and Title Number of participants and their registered numbers Paradigm used Relevant research (the study replicated) Predicted outcome What you want to test with beamforming Ethical concerns/limitations concerning use of the data I will review the forthcoming information and after that will arrange a brainstorming session on how best to move things forward. Thanks Tony

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MEG / MRI booking
by Michael Simpson 27 Oct '06

27 Oct '06

Dear Users, further to the email sent recently about the format of booking requests, Users may book scan time via a new on-line booking form. https://www.ynic.york.ac.uk/user-resources/booking However to cancel a booking please send the following request to bookings(a)ynic.york.ac.uk : CANCEL Date: 31st October 2006 Time: 00.00 Type of Scan: structural MRI Project ID: P0666 Participant ID: R0000 Unfortunately, verbose requests can lead to ambiguities and increase the chances of errors. Please avoid the following style of request: "This is just a request to cancel the time for one subject on Monday of this week (my subject is on holiday LOL!) and then re-book them in to another slot next Friday, for some time in the afternoon (don't mind when), with all the same information, but an amendment to the Stimulus Code from P0666et to P0666aa." Should you need to re-schedule a subject, please simply send a CANCEL request as shown above, and then re-book some new time via the website. Thanks, Michael

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Beamforming
by a.morland＠psychology.york.ac.uk 25 Oct '06

25 Oct '06

Dear All, Since the first beamforming course a number of people have been asking questions like; What can beamforming really do? If I do this and get that, what does it mean? Is beamoforming precise enough to distinguish between activity in brain area A and B? If I do X will it result in data that can be analysed with beamforming? Can virtual electrode traces allow latencies to be measured in brain areas A and B and do they make sense? If I filter in this frequency band rather than that band why do I get this result? The answers to many of these questions are empirical and although Will et al have been striving to test, retest and validate the methods, there will always be questions that can't quite be answered unless more data is acquired/analysed. It appears necessary therefore to start bench marking the beamforming methods that are available. The aim is to undertake a series of empirical studies that will reflect, in broad terms, the types of paradigm used by investigators. My personal preference would be for a set of basic experiments to be devised for which results are predictable and could be compared with previous research. I accept that this is a conservative aim, but the data sets acquired are likely to be the most informative about the capabilities of the beamforming analysis tools. The data acquired would also offer us an excellent resource for training any researchers wishing to undertake investigations using beamforming. Before devising new experiments it would be worth reviewing previous studies undertaken at YNiC to see whether they can be used to bench mark the beamforming methods. To this end, I would be grateful if you could provide me with details of data that you think are suitable for bench marking beamforming. The most helpful form for the information would be the following: Project Number and Title Number of participants and their registered numbers Paradigm used Relevant research (the study replicated) Predicted outcome What you want to test with beamforming Ethical concerns/limitations concerning use of the data I will review the forthcoming information and after that will arrange a brainstorming session on how best to move things forward. Thanks Tony

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Booking Imaging Time
by Michael Simpson 24 Oct '06

24 Oct '06

Dear Users, Can Users who wish to book MRI / MEG please use the bookings(a)ynic.york.ac.uk email address. This address can in theory be checked by all staff, and hence always monitored. If you have made any bookings to an address other than the bookings(a)ynic.york.ac.uk email, please re-send your booking to the correct address. To make things more efficient, and enable the Operator to set up you recording preferences in advance, could your booking include the following (preferably in the following format - see example in post script): Date: Time: Type of scan: (MEG / structural MRI / fMRI) Your Name: Project ID: Participant ID: (If your participant needs to be registered on the database, please attach their registration form). Stimulus Code*: Stimulus Presentation software / apparatus*: (e.g. E-Prime, screen and etymotics) MEG position (Seated / Supine): * Contact your SLO if you don't know what a / your Stimulus Code is. with thanks, Michael P.S. Example booking - Date: 31st October 2006 Type of Scan: structural MRI Project ID: P0666 Participant ID: R0000 Stimulus Cods: P0666et Stimulus Presentation software / apparatus: Visage and Phantom MEG position (Seated / Supine): N/A -- Dr Michael Simpson Science Liaison Officer York Neuroimaging Centre Innovation Way York YO10 5DG Tel: 01904 567614 Web: http://www.ynic.york.ac.uk

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