- ynic-users

YNiC ASC session on Virtual Electrode Analyses in MEG

by Andy Ellis

Dear All NOTES ON THE YNIC ANALYSIS SUPPORT COLLOQUIUM ON VIRTUAL ELECTRODE ANALYSES IN MEG, WEDNESDAY 13 FEBRUARY 2008. The current YNiC MEG tools allow us to create beautiful and defensible images showing how the brain's responses to stimuli evolve over time. But beamforming requires the comparison of active windows with passive windows, and the use of active windows less that 200 ms long is not recommended. So while moving windows convey a good initial impression of the progression … [View More]of neural events, they do not take full advantage of MEG's potential for looking at the detailed timing of those events. There is another issue with beamformed brain maps, which is that it is not easy to compare results across conditions. You can point out that there is a significant response in a particular brain region in one condition of an experiment but not in another, but it could be that the response just makes it over the threshold in one condition and just falls below threshold in the other. The absolute difference in the magnitude of the two responses (or, to be accurate, the magnitude of the difference between the two active and passive conditions) may be small. Virtual electrodes offer the potential for asking intelligent questions about the strength and time course of events at specific points in the brain, allowing direct comparisons between conditions and making better use of the temporal resolution of MEG. Piers Cornelissen presented the results of some virtual electrode analyses he and his colleagues have done, comparing responses to different types of stimuli at different regions of interest in the brain. Piers showed results in the form of time-frequency histograms ('Stockwell plots'), separating out evoked and induced components of the total response; also event-related frequency (ERF) plots showing changes in the amplitude of evoked responses over time. He also discussed techniques that he and his colleagues have used for making statistical comparisons across conditions in both types of analysis. A lengthy and gripping discussion ranged over: 1. The best method to identify regions of interest, 2. How best, having identified a point of interest in a standardised brain, to identify the corresponding points in individual participant brains, and 3. What issues are involved in doing individual and group level analyses, and what would be the best analyses to adopt within YNiC, at least as interim solutions that will allow research groups to make progress with these techniques. Doing virtual electrode analyses at a group level is a complex business but has strong appeal to a number of researchers. Piers has a working solution which he and Uzma will document and make available. In complement to this documentation, YNiC will document the assumptions and issues associated with Virtual Electrode Analysis at the group level. It was also clear in the discussion that connectivity measures applied to Virtual Electrode analysis are going to be important to understanding more about the signals recorded in MEG, and more about how functional interactions involving different regions in the brain evolve over time. Deep thought will be given to this topic within YNiC. Ideas for future fora are welcomed. Andy Ellis and Michael Simpson -- Professor Andy Ellis Department of Psychology University of York York YO10 5DD England Tel. +44 (0)1904 433140 http://www.york.ac.uk/depts/psych/www/people/biogs/awe1.html [View Less]

17 years, 3 months

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Last nights YNiC ASC session.

by Michael Simpson

Dear all, just to say thanks to Andy and Piers for chairing last nights YNiC ASC session; a digest of which will be forwarded to the User list in due course. Given that we gave everyone the option to leave at 5pm, but everyone stayed until 5.30, I'll interpret it to have been and success! It was good that it generated so much discussion. On which note, would anyone like to volunteer to chair the next YNiC ASC session? If so, send an email to the ynic-users stating the topic for … [View More]

17 years, 4 months

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master students presentations

by Silvia Gennari

Hi, all, This is just a reminder that tomorrow (Thursday) at 4PM, MSC students will be giving presentations at YNiC. Everyone is welcome Silvia Gennari Department of Psychology University of York York, YO10 5DD United Kingdom

17 years, 4 months

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Virtual electrode analysis in MEG: the 1st YNiC ASC

by Andy Ellis

Dear All I will attempt to chair a discussion this Wednesday (11th) at 4pm on virtual electrode analysis in MEG. The meeting is the first of the proposed YNiC Analysis Support Colloquia looking at current and future needs for data analysis (MRI as well as MEG). The meeting will take place in the Psychology lecture theatre (B020), NOT in YNiC. Virtual electrode analyses probe individual points in the brain. They potentially allow you to chart the response at that location over time, … [View More]

17 years, 4 months

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YNiC Analysis Support Colloquia - Wednesday 13th February. B020.

by Michael Simpson

Dear all, This is just to confirm that Andy Ellis will be chairing the first YNiC Analysis Support Colloquia on Wednesday February 13th. The session will take place in B020 at 4pm. Andy will forward an agenda in due course which will detail the specific questions he will raise in the session. However, following his previous mailing to ynic-users, the general topic of the session will be Virtual Electrode Analysis of MEG data. We look forward to seeing you there. Here's hoping for a good … [View More]

17 years, 4 months

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MEG Masterclass - Thursday 6th February

by Michael Simpson

Dear all, this is just a reminder that the MEG masterclass will take place tomorrow. A number of you contacted Andre at the start of the masterclasses to let him know that you are likely to attend these sessions. If you haven't previously let him know of your interest for the MEG class, and would like to attend, please contact *me* so that we can have a rough idea of numbers. The session will take place from 2.30 till 5.00 in Open Plan. Thanks, Michael -- Dr Michael Simpson Science … [View More]

17 years, 4 months

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Re :MRI corridor

by Gary Green

---------------------------- Plastic bags and paper work have been left on the bed in the MRI corridor. Please ensure that your projects are aware that this is a clinical area and needs to remain clean and tidy. Will you please also remind students that any scrubs worn need to be put in the laundry bin. Thank you

17 years, 4 months

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[Fwd: [Staff] MRI corridor]

by a.morland＠psychology.york.ac.uk

Dear All, I am copying Claire's message to all users, so that everyone is aware of the need to keep the MRI corridor clear of debris. Thanks Tony ---------------------------- Original Message ---------------------------- Subject: [Staff] MRI corridor From: "Claire Fox" <claire.fox(a)ynic.york.ac.uk> Date: Thu, January 31, 2008 10:06 am To: staff(a)ynic.york.ac.uk -------------------------------------------------------------------------- Plastic bags and paper work have … [View More]

17 years, 4 months

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masterclasses: MSc commitments

by Andre Gouws

I would like to re-iterate (see my previous email of 21/01/08): "MSc students with timetable commitment that prevent them attending the masterclasses should be aware that it is our intention to run a separate session(s) for the MSc program. (Date to be confirmed)." Sylvia - we are happy to liaise with you on this. ************************************************************************ Andre Gouws User Support Manager York Neuroimaging Centre The Biocentre York Science Park … [View More]

17 years, 4 months

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MRI masterclass - split session - Thursday 31st January

by andre＠ynic.york.ac.uk

Thank you to those of you who replied to my previous emails requesting that you contact us if you intend to attend any/all of the current masterclasses. We have had a low response in terms of attendance for this week's MRI session (so far only 5 interested parties). Those 5 five will be glad to know that we fully intend to continue with the session - the tutorials will be even more interactive than usual if the numbers are smaller! However, it would be naive of me to ignore the feedback from … [View More]

17 years, 4 months

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MEG

by Gary Green

You will all be pleased to hear that we now have a certificate that states that the oxygen level in MEG is 20.9% The oxygen monitor has also been shown to detect and alarm when the level is low (18%). What this really means is that the oxygen monitor has been calibrated. It is now safe to scan again in MEG Thanks to 4D Neuroimaging, Joanna and Maribel who help sort this out so quickly Gary -- Gary Green Director York Neuroimaging Centre The Biocentre York Science Park Innovation Way … [View More]

17 years, 4 months

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Masterclasses - register

by Andre Gouws

MSc students with timetable commitment that prevent them attending the masterclasses should be aware that it is our intention to run a separate session for the MSc program. (Date to be confirmed). -- ************************************************************************ Andre Gouws User Support Manager York Neuroimaging Centre The Biocentre York Science Park Heslington YO10 5DG Tel: +44 (0) 1904 435328 Fax: +44 (0) 1904 435356

17 years, 4 months

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Masterclasses - register

by Andre Gouws

FYI: Masterclasses are 2 and a half hour interactive tutorial sessions which start at 2:30 pm. -- ************************************************************************ Andre Gouws User Support Manager York Neuroimaging Centre The Biocentre York Science Park Heslington YO10 5DG Tel: +44 (0) 1904 435328 Fax: +44 (0) 1904 435356

17 years, 4 months

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Masterclasses - register

by Andre Gouws

To give us an indication of the type of numbers we can expect at the forthcoming masterclasses, please reply to this email if you intend to attend the following sessions (and indicate which you will attend): Thursday 24th Jan - Visualisation tools Thursday 31st Jan- MRI tools Thursday 7th Feb - MEG tools Thanks -- ************************************************************************ Andre Gouws User Support Manager York Neuroimaging Centre The Biocentre York Science Park Heslington … [View More]

17 years, 4 months

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Virtual electrodes as a YNiC Analysis Support Colloquium?

by Andy Ellis

Piers and I would be willing to attempt to lead one or two sessions on virtual electrode analysis in MEG. Points for discussion could include: 1. Where you can stick your virtual electrodes. How to position your VEs to best effect. 2. What kinds of information you can get out of VEs - analyses in the frequency and amplitude domains. 3. What kinds of statistical analyses would it be good to be able to do? These might best be done after the MEG masterclass on 7 Feb. Any interest? Andy … [View More] >Delivered-To: psychology.york.ac.uk-a.ellis(a)psych.york.ac.uk >Date: Thu, 17 Jan 2008 17:35:35 +0000 >From: Michael Simpson <michael.simpson(a)ynic.york.ac.uk> >To: ynic-users(a)ynic.york.ac.uk >Subject: YNiC Analysis Support Colloquia >X-BeenThere: ynic-users(a)ynic.york.ac.uk >List-Id: YNiC user discussion list <ynic-users.ynic.york.ac.uk> >List-Unsubscribe: <https://www.ynic.york.ac.uk/mailman/listinfo/ynic-users>, > <mailto:ynic-users-request@ynic.york.ac.uk?subject=unsubscribe> >List-Archive: <https://www.ynic.york.ac.uk/mailman/private/ynic-users> >List-Post: <mailto:ynic-users@ynic.york.ac.uk> >List-Help: <mailto:ynic-users-request@ynic.york.ac.uk?subject=help> >List-Subscribe: <https://www.ynic.york.ac.uk/mailman/listinfo/ynic-users>, > <mailto:ynic-users-request@ynic.york.ac.uk?subject=subscribe> >X-York-MailScanner: Found to be clean >X-York-MailScanner-From: ynic-users-bounces(a)ynic.york.ac.uk > >Dear Users, > >YNiC would like to invite you to the YNiC Analysis Support Colloquia. >These sessions will take place on Wednesday evenings from 4pm to 5pm in >Room B020, Psychology. This new session is designed to get Users to >present and discuss contemporary analysis problems. They are open to all >Users, and will be attended by as many YNiC staff as are available. > >The format will be: > > * A User will send a message to ynic-users(a)ynic.york.ac.uk to say >that they would like to have a YNiC ASC on a set date, and on a set subject. > > * Once a User has nominated a particular date, they are effectively >the chair for that session. Before the session, the chair will be >expected to forward an agenda to the User list to let YNiC staff, and >Users, know what the topic of the session will be, and who will present >what. > > * The chair will be expected to make a short presentation on an >analysis problem at their YNiC ASC, and then lead the subsequent discussion. > > * If another User would like to present at a colloquia that is >already being chaired, it will be up to the User to contact the chair in >advance to see if their data / problem is appropriate for the session. >Therefore, in some colloqiua there may be more than one example of the >problem presented. > > * The chair for the session may be asked to add to the YNiC >documentation after their session if new insights into analyses have >been gleaned. > >Those of you who have had a brainstorm will recognise aspects of the >format. The new YNiC ASC will hopefully open these brainstorms up so >that all Users can benefit from them. Hence, analysis insights that >emerge form these colloquia will be open to the whole User community. >These colloquia will also replace interpretation support that may >previously have been available via your SLO. This has been decided to >ensure that all projects have the potential for the same support, and >also that all projects will essentially benefit from input from all YNiC >staff and Users, rather than just one individual. We hope that it will >be a self-supporting enterprise for the whole User community. (N.B. Note >that technical support related to your analysis will still be available >from your SLO.) > >So, all that is left to do is email ynic-users(a)ynic.york.ac.uk and >volunteer for a YNiC ASC, making sure to state the date and subject. > >Best Wishes, >Michael > >P.S. We appreciate that there may be occasions when there is a clash >with Board of Studies meetings however, as there is only 2 per term, >this will only be problem 6 times a year. On these occasions Users can >suggest to the chair of the YNiC ASC that they might move their date to >another day. Alternatively, there may be very specific or technical >problems that might be appropriate for a YNiC ASC that clashes with a >Board of Studies meeting. > >-- >Dr Michael Simpson >Science Liaison Officer >York Neuroimaging Centre >Innovation Way >York >YO10 5DG > >Tel: 01904 567614 >Web: http://www.ynic.york.ac.uk > >-- >ynic-users mailing list >ynic-users(a)ynic.york.ac.uk >https://www.ynic.york.ac.uk/mailman/listinfo/ynic-users -- Professor Andy Ellis Department of Psychology University of York York YO10 5DD England Tel. +44 (0)1904 433140 http://www.york.ac.uk/depts/psych/www/people/biogs/awe1.html [View Less]

17 years, 4 months

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YNiC Analysis Support Colloquia

by Michael Simpson

Dear Users, YNiC would like to invite you to the YNiC Analysis Support Colloquia. These sessions will take place on Wednesday evenings from 4pm to 5pm in Room B020, Psychology. This new session is designed to get Users to present and discuss contemporary analysis problems. They are open to all Users, and will be attended by as many YNiC staff as are available. The format will be: * A User will send a message to ynic-users(a)ynic.york.ac.uk to say that they would like to have a YNiC … [View More]ASC on a set date, and on a set subject. * Once a User has nominated a particular date, they are effectively the chair for that session. Before the session, the chair will be expected to forward an agenda to the User list to let YNiC staff, and Users, know what the topic of the session will be, and who will present what. * The chair will be expected to make a short presentation on an analysis problem at their YNiC ASC, and then lead the subsequent discussion. * If another User would like to present at a colloquia that is already being chaired, it will be up to the User to contact the chair in advance to see if their data / problem is appropriate for the session. Therefore, in some colloqiua there may be more than one example of the problem presented. * The chair for the session may be asked to add to the YNiC documentation after their session if new insights into analyses have been gleaned. Those of you who have had a brainstorm will recognise aspects of the format. The new YNiC ASC will hopefully open these brainstorms up so that all Users can benefit from them. Hence, analysis insights that emerge form these colloquia will be open to the whole User community. These colloquia will also replace interpretation support that may previously have been available via your SLO. This has been decided to ensure that all projects have the potential for the same support, and also that all projects will essentially benefit from input from all YNiC staff and Users, rather than just one individual. We hope that it will be a self-supporting enterprise for the whole User community. (N.B. Note that technical support related to your analysis will still be available from your SLO.) So, all that is left to do is email ynic-users(a)ynic.york.ac.uk and volunteer for a YNiC ASC, making sure to state the date and subject. Best Wishes, Michael P.S. We appreciate that there may be occasions when there is a clash with Board of Studies meetings however, as there is only 2 per term, this will only be problem 6 times a year. On these occasions Users can suggest to the chair of the YNiC ASC that they might move their date to another day. Alternatively, there may be very specific or technical problems that might be appropriate for a YNiC ASC that clashes with a Board of Studies meeting. -- Dr Michael Simpson Science Liaison Officer York Neuroimaging Centre Innovation Way York YO10 5DG Tel: 01904 567614 Web: http://www.ynic.york.ac.uk [View Less]

17 years, 4 months

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Seminar today at YNiC

by Gary Green

The first of the 2008 seminars at YNiC as advertised on the web site at https://www.ynic.york.ac.uk/events/ynic-thursday-seminars will be today at 4pm in the YNiC open plan area "1. The new software and documentation" a presentation led by the YNiC team Refreshments will be available afterwards This is followed in the next few weeks by masterclasses that go through the practical aspects of the new software and documentation in detail. Gary -- Gary Green York Neuroimaging Centre The … [View More]

17 years, 4 months

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Might be of interest

by Philip Quinlan

Quite an interesting paper has just appeared in Perspectives on Psychological Science 2,(4), Dec 2007 - A trio of concerns by Jerome Kagan. Includes some interesting observations on the differences between MEG and MRI. Enjoy. PQ. -- ******************************************************************************** Philip Quinlan E-Mail: ptq1(a)york.ac.uk Department of Psychology FAX: (01904) 433181 University of York Tel: (01904) 430000 Ext. 3135 Heslington Direct : (01904) 433135 York … [View More]

17 years, 5 months

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showcase

by Gary Green

Just to note, that as there are hardly any people around at the moment, we have postponed the poster afternoon until later in 2008 -- 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

17 years, 5 months

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Christmas Drinks and Mince Pies

by Gary Green

You are cordially invited to partake of mince pies and drinks at YNiC at 4pm today -- 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

17 years, 5 months

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Seminar today

by Gary Green

This afternoon's seminar is a new project presentation "Functional imaging with hyperpolarised carbon dioxide" 4pm, ynic open plan all welcome -- Gary Green York Neuroimaging Centre The Biocentre York Science Park York YO10 5DG tel (+44) (0) 1904 435349 fax (+44) (0) 1904 435356 mobile 07986778954

17 years, 6 months

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HBM-travel awards

by Cindy Hagan

On a related note, grad students and post-docs can apply for a $750 travel bursary. It's not much money (especially with the ever-declining value of the USD) but better than paying the entire £760 airfare yourself! Deadline is April '08. See link below: http://ric.uthscsa.edu/hbmtravelawards/ Cindy

17 years, 6 months

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Human Brain Mapping Conference

by Gary Green

The deadline for submitting an abstract for HBM is fast approaching (January 6th 2008). Details can be obtained from https://www.ynic.york.ac.uk/user-resources/conferences-and-abstract-deadlin… and http://www.hbm2008.com/ Why not join me in Melbourne Gary -- 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

17 years, 6 months

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MRI operator training

by rem

Dear YNiC Users Users are invited to take part in an MRI operator training course held at YNiC. Clinical scanning is currently placing a high demand on the MRI facilities. To provide more flexibility for MRI research scanning, especially for unfunded projects, we would like to encourage Users to become MRI operators so that they can collect their own data during off-peak hours (after 5 pm). At this point please could you let me know if you, or other members of your research team, are … [View More]

17 years, 6 months

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Tonight at YNiC

by Gary Green

Dear users Tonight is the first of our roundtable discussions on the future at ynic. The topic is 'eye-tracking' Andy Ellis will lead the discussion but contributions/presentations from others are welcome. The aim of these roundtables is to discuss what/why/how/when we might attempt to address a particular need within the user community at YNiC. All welcome Refreshments will be available. -- Gary Green York Neuroimaging Centre The Biocentre York Science Park Innovation Way … [View More]

17 years, 6 months

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