- ynic-users

by Gary Green

You will be pleased to hear that all systems are working here at YNiC following the power cut yesterday. There was slight delay in getting the scanner back on this morning because I couldn't find the fuse! I would like to publicly thank Mark Hymers for the sterling work he did last night in bringing all the systems back on-line so quickly and efficiently. The power cut was a good test of all our systems here and, it seems, that we have not lost any data or emails. Of course cluster jobs will need to restarted. 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

16 years, 4 months

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Today at YNiC

by Gary Green

We have an interesting day in YNiC. The Chancellor of the University is visiting at 2pm and then at 4pm we have the poject presentations by the Masters students. Do come along to both. The Chancellor has asked to meet users and I am sure that you will be keen to hear about the new exciting plans for projects this year on the Masters course. Here is a list of working titles and the students who will be presenting each talk: Does language modulate activity in motion perception area V5? Caroline Jennings Gina Humphries Katherine Newling Yiwen Tan The neural basis of familiar face recognition from fMR adaptation Ajay Hallai Nick Arthur Emma Pagett Investigating semantic cognition (TMS) Jamie O'Sullivan Marie Kirk Investigating semantic cognition (Neuropsychology) Jen Wathan This session will take start at 4 pm in YNiC. The talks may run on past 5 pm, depending on the duration of the talks and questions. Everyone is welcome to attend. -- 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

16 years, 4 months

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Power outage

by Mark Hymers

Hi, This evening there was a major power outage affecting YNiC. The Science Park and parts of the University were affected. Most systems were taken down in a co-ordinated manner during the period which the UPSes provided power and we believe that most user-visible systems are now up and running again. It is possible, however, that some areas have been overlooked or that there may be lingering problems. Please let the DSO know if this is the case and they will bring it to the attention of the right staff to deal with it. Any cluster jobs running at the time of the outage will be cleared and will need to be re-run. Please note that we do not intend to bring the cluster up again until tomorrow morning at the earliest and there may be some delay in getting the whole cluster running again. Sorry for the inconvenience. Thanks, Mark -- Mark Hymers York Neuroimaging Centre

16 years, 4 months

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interesting paper

by Silvia Gennari

I thought some of you may be interested in this paper The Coding of Color, Motion, and Their Conjunction in the Human Visual Cortex Kiley Seymour,Colin W.G. Clifford,Nikos K. Logothetis, and Andreas Bartels http://www.cell.com/current-biology/abstract/S0960-9822(09)00544-2 Silvia Gennari Department of Psychology University of York York, YO10 5DD United Kingdom

16 years, 4 months

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YNiC seminar 12th February

by rem

Dear Users This week MSc students will be giving their project presenations. Here is a list of working titles and the students who will be presenting each talk: Does language modulate activity in motion perception area V5? Caroline Jennings Gina Humphries Katherine Newling Yiwen Tan The neural basis of familiar face recognition from fMR adaptation Ajay Hallai Nick Arthur Emma Pagett Investigating semantic cognition (TMS) Jamie O'Sullivan Marie Kirk Investigating semantic cognition (Neuropsychology) Jen Wathan This session will take start at 4 pm in YNiC. The talks may run on past 5 pm, depending on the duration of the talks and questions. Everyone is welcome to attend. Best wishes 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

16 years, 4 months

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[Fwd: This week's seminar at YNiC]

by Gary Green

In one hours time do come ------------------------------------ Dear colleagues This week we will discuss the design of a set of MEG and fMRI experiments that could be used to form the basis of a 'gold-standard' dataset that could be used to compare and contrast current MEG analysis techniques as well allow the testing of future analysis algorithms. Andy Young has proposed that we start this exercise by collecting data that would primarily activate sensory cortices as one should be able to predict the outcome. The aim would be to collect data in as 'perfect' a manner as possible and would include the recording of eye movements, EOG and ECG signals. The specific design of the experiments will be discussed this Thursday at 4pm. We will also discuss how we will use a suite of analysis tools to examine different source localisation and reconstruction methods. Examples of how this could be achieved will be presented by members of the YNiC team but the idea is that an analysis task-force would be encouraged to tackle the data. One of the aims is to use this data to refine our data analysis and statistical methods. We hope this will lead to clear guidelines as to the 'best' way to approach MEG experimentation and source analysis. The outcomes will determine how we develop the analysis software framework and will, hopefully, result in even clearer documentation for users as well as publications. Do come and contribute. All welcome Gary -- Gary Green York Neuroimaging Centre The Biocentre York Science Park Innovation Way Heslington York YO10 5DG

16 years, 5 months

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This week's seminar at YNiC

by Gary Green

Dear colleagues This week we will discuss the design of a set of MEG and fMRI experiments that could be used to form the basis of a 'gold-standard' dataset that could be used to compare and contrast current MEG analysis techniques as well allow the testing of future analysis algorithms. Andy Young has proposed that we start this exercise by collecting data that would primarily activate sensory cortices as one should be able to predict the outcome. The aim would be to collect data in as 'perfect' a manner as possible and would include the recording of eye movements, EOG and ECG signals. The specific design of the experiments will be discussed this Thursday at 4pm. We will also discuss how we will use a suite of analysis tools to examine different source localisation and reconstruction methods. Examples of how this could be achieved will be presented by members of the YNiC team but the idea is that an analysis task-force would be encouraged to tackle the data. One of the aims is to use this data to refine our data analysis and statistical methods. We hope this will lead to clear guidelines as to the 'best' way to approach MEG experimentation and source analysis. The outcomes will determine how we develop the analysis software framework and will, hopefully, result in even clearer documentation for users as well as publications. Do come and contribute. All welcome 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

16 years, 5 months

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external speaker-Prof. Michael Petrides

by Ekaterini Klepousniotou

Dear colleagues, Next week's External Seminar Speaker at the Institute of Psychological Sciences (IPS), University of Leeds is: Prof. Michael Petrides, Director of the Cognitive Neuroscience Unit at the Montreal Neurological Institute, McGill University, Canada. The title of his talk is: "Functional specialization for memory within the lateral frontal cortex". The talk is on Wednesday, February 4 at 4:00 pm in Room G.17 in the IPS and will be followed by a wine reception at the foyer of the Institute. All are welcome. All the best, Katerina ****************************************************** Dr. Ekaterini Klepousniotou Lecturer in Cognitive Neuroscience & Neuropsychology Institute of Psychological Sciences University of Leeds Leeds LS2 9JT UK Tel: +44-(0)113-343 5716 Fax: +44-(0)113-343 5749

16 years, 5 months

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Today's YNiC Session

by Sam Johnson

Hello all, Just a quick note to let you know about this afternoon's session. The intention is to very briefly go through the talks that were given at MEG -UK and mention some of the common themes in terms of the problems people are experiencing and potential ways of addressing them. In fact these issues overlap quite heavily with the discussions planned for next week. We don't really want to preempt that discussion, so this afternoon's session will probably be quite short, and to some extent a scene setter for the debate proper on Feb the 5th. That said as ever, all are welcome. Thanks, Sam

16 years, 5 months

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YNiC seminar 29th January

by rem

Dear Users This week YNiC staff who attended the recent "MEG UK" conference will give feedback on this meeting. This feedback session will take place in YNiC from 4-5 pm. Everyone is welcome to attend. Best wishes 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

16 years, 5 months

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International MEG Conference, Athens 2009

by awe1＠psych.york.ac.uk

---------------------------- Original Message ---------------------------- Subject: International MEG Conference, Athens 2009 From: "Fuller, Susan V" <Susan.V.Fuller(a)uth.tmc.edu> Date: Fri, January 23, 2009 7:02 pm To: "Papanicolaou, Andrew C" <Andrew.C.Papanicolaou(a)uth.tmc.edu> -------------------------------------------------------------------------- Dear Colleagues: I am pleased to announce the 3rd biannual conference of the International Society for the Advancement of Clinical Magnetoencephalography (ISACM) scheduled for September 4th and 5th 2009 in Athens, Greece. The first meeting in Xylokastro, Greece (http://www.uth.tmc.edu/clinicalneuro/mega2005.htm) in 2005 laid the foundations of the Society and resulted in the election of an executive board and the first president, Professor Nakasato, who chaired the second meeting in August of 2007 in the beautiful Matsushima Bay, Japan (http://www.knt.co.jp/ec/2007/isacm/). As it was the case with the two previous meetings, the emphasis of the upcoming one will be on professional issues of great importance to our young Society, to be discussed in a series of plenary round tables, and on new clinical research findings to be presented in the form of posters. You will find the details of the meeting, the associated social events, as well as suggestions for enjoying Greece before and after the conference, on the following website (http://www.uth.tmc.edu/clinicalneuro/ISACM/Welcome.htm). I am looking forward to seeing you in Athens. A.C. Papanicolaou Conference Chairman The University of Texas Medical School 1333 Moursund Street, Suite H 114 Houston, TX 77030 TEL: (713)797-7571 FAX: (713) 797-7590 Andrew.C.Papanicolaou(a)uth.tmc.edu <mailto:Andrew.C.Papanicolaou@uth.tmc.edu> http://www.uth.tmc.edu/clinicalneuro/ <blocked::http://www.uth.tmc.edu/clinicalneuro/>

16 years, 5 months

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[Fwd: BNA 2009 - abstract deadline reminder! - 00810799]

by Gary Green

BNA 20th National Meeting - abstract deadline 31st JANUARY! There is only two weeks left to submit an abstract and to register at the early bird fee for the 20th National Meeting of the British Neuroscience Association (19th 22nd April, 2009)! We are delighted to be using for the first time The Adelphi, Liverpool, a unique and historic venue that now offers spacious conference facilities in addition to its other grand rooms and restaurants. And Liverpool is a fascinating city, fast emerging as one of the UKs most stylish, cultured and vibrant conference venues in the UK. So why not come and enjoy some wonderful science in a truly magnificent city and see for yourself whats been going on behind the cranes and the hoardings these past few years. The scientific programme is an exciting and topical array of seven world-class plenary speakers, 20 symposia and over 50 themed poster sessions. For the first time, there are also workshops and a satellite meeting, all FREE to registered delegates. With an equally exciting range of peripheral events and social gatherings (yes, therell even be a Magical Mystery Tour!) this will be a wonderful celebration of neuroscience on UK soil. Registration fees start from as little as £120 (including refreshments and lunches each day too), and the BNA welcomes members and non-members alike. Consult www.bna.org.uk/bna2009/ for further information and all the latest updates. Important deadlines: Early registration (reduced fee): 31st January, 2009 Abstract deadline: 31st January, 2009 Bursary applications: 28th February, 2009 ***************************************************************

16 years, 5 months

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YNiC seminar 22nd January

by rem

Dear Users This week's talk on "An Introduction to Minimum Norm Source Analyses" will be given by Pádraig Kitterick from the Department of Psychology. The minimum norm solution will soon be available at YNiC. Pádraig's talk will provide an introduction to minimum norms, including an overview of what the minimum norm is, how the minimum norm works and the advantages and limitations of the minimum norm solution. Everyone is welcome to attend. Best wishes 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

16 years, 5 months

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Spurious correlations

by ptq1＠psych.york.ac.uk

This looks like a very useful place to look for stuff about the recent controversy http://www.mindhacks.com/blog/2009/01/voodoo_accusations_f.html Philip.

16 years, 5 months

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External Speakers Seminar-University of Leeds-Psychology

by Ekaterini Klepousniotou

Dear colleagues, Please find attached the list with the External Speakers for this semester at the Institute of Psychological Sciences (IPS) at the University of Leeds. Our External Speakers Seminar series takes place on Wednesdays at 16:00 in the IPS in Room G.17 and is followed by a wine reception at the foyer of the Insitute. You are all welcome to attend any talks that are of interest to you. All the best, Katerina ****************************************************** Dr. Ekaterini Klepousniotou Lecturer in Cognitive Neuroscience & Neuropsychology Institute of Psychological Sciences University of Leeds Leeds LS2 9JT UK Tel: +44-(0)113-343 5716 Fax: +44-(0)113-343 5749

16 years, 5 months

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[Fwd: YNiC seminar 15th January] - today

by Gary Green

Dear Users Today, David Halliday from the Department of Electronics will give a talk. David's talk will be followed by a YNiC project presentation by Philip Quinlan and Nikos Andreadis titled "Switching tasks and anticipating switching tasks: what is the brain doing?". These events will take place at YNiC from 4-5 pm. The title of David's talk is "The Noisy Brain – An introduction to time and frequency domain signal processing techniques for neurophysiological data". http://www.elec.york.ac.uk/staff/dh20.html Abstract: A common feature of neurophysiological signals is the presence of noise, i.e. the signals have the appearance of random processes. In addition, records taken under similar conditions do not have a similar appearance. Analysis of such data therefore requires the use of some form of statistical analysis. For example sample records of EEG recorded from different scalp locations may not look alike, but a statistical analysis may demonstrate that the records share a common underlying rhythm. The field of time-series analysis provides a conceptual and mathematical framework within which random signals, including neurophysiological signals, can be analysed. Two approaches are traditionally used in the analysis of time series – these are the time and frequency domain approaches. The frequency domain approach is generally based on Fourier methods. In the case of two or more simultaneously recorded signals, an important concept is that of correlation, the objective being to assess to what extent the activity in one signal is correlated with that in a second signal. A key frequency domain parameter in this context is the coherence function, which provides a normative linear measure of association between two time series, as a function of frequency. The talk will consider time and frequency domain analyses of neurophysiological signals, including coherence functions. These will be developed within a unified framework where time and frequency domain techniques sit naturally alongside each other, and can be used as complementary forms of analysis. A number of extensions will be discussed, which look at alternative measures of correlation (phase synchronization, causal measures); deal with time dependency (Wavelets, Kalman filtering) and non linearities (higher order spectra). Everyone is welcome to attend. Best wishes 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 -- ynic-users mailing list ynic-users(a)ynic.york.ac.uk https://www.ynic.york.ac.uk/mailman/listinfo/ynic-users

16 years, 5 months

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Seminar

by Gary Green

Karl Friston will be talking at a seminar in the Computing Science Department on the 11th of February at 2pm in CS103 The title is "A new sort of filter" Full details can be found at http://www.cs.york.ac.uk/seminars/09Spring/Friston.php -- 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

16 years, 5 months

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YNiC seminar 15th January

by rem

Dear Users This week David Halliday from the Department of Electronics will give a talk. David's talk will be followed by a YNiC project presentation by Philip Quinlan and Nikos Andreadis titled "Switching tasks and anticipating switching tasks: what is the brain doing?". These events will take place at YNiC from 4-5 pm. The title of David's talk is "The Noisy Brain – An introduction to time and frequency domain signal processing techniques for neurophysiological data". http://www.elec.york.ac.uk/staff/dh20.html Abstract: A common feature of neurophysiological signals is the presence of noise, i.e. the signals have the appearance of random processes. In addition, records taken under similar conditions do not have a similar appearance. Analysis of such data therefore requires the use of some form of statistical analysis. For example sample records of EEG recorded from different scalp locations may not look alike, but a statistical analysis may demonstrate that the records share a common underlying rhythm. The field of time-series analysis provides a conceptual and mathematical framework within which random signals, including neurophysiological signals, can be analysed. Two approaches are traditionally used in the analysis of time series – these are the time and frequency domain approaches. The frequency domain approach is generally based on Fourier methods. In the case of two or more simultaneously recorded signals, an important concept is that of correlation, the objective being to assess to what extent the activity in one signal is correlated with that in a second signal. A key frequency domain parameter in this context is the coherence function, which provides a normative linear measure of association between two time series, as a function of frequency. The talk will consider time and frequency domain analyses of neurophysiological signals, including coherence functions. These will be developed within a unified framework where time and frequency domain techniques sit naturally alongside each other, and can be used as complementary forms of analysis. A number of extensions will be discussed, which look at alternative measures of correlation (phase synchronization, causal measures); deal with time dependency (Wavelets, Kalman filtering) and non linearities (higher order spectra). Everyone is welcome to attend. Best wishes 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

16 years, 5 months

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[Fwd: HBM 2009 Call For Abstracts Reminder]

by Gary Green

Apologies if you have already been sent this The Abstract Submission site is open for the 15th Annual Meeting of the Organization for Human Brain Mapping to be held in San Francisco, CA, June 18-22, 2009. Please note that the deadline is *January 11th, 2009 at 11:59 PM CST USA*. Please click here <http://www.llmsi.com/index.php?cid=1425129&forward=2670&curlid=11646> to submit an abstract. Though you are not required to register for the meeting prior to submitting an abstract, the presenter of the abstract must register for the meeting. To take advantage of the lowest registration fee, register online at www.humanbrainmapping.org/sanfrancisco <http://www.llmsi.com/index.php?cid=1425129&forward=2543&curlid=3>_2009_ by March, 15, 2009. Watch for an email announcing the opening of the registration site in January. The Program Committee (PC) of the Organization for Human Brain Mapping's goal is to keep rejection of abstracts low because it wishes to be inclusive. The policy for HBM 2009 will be to reject abstracts that are unethical, incomplete, or contain no data. Statements such as "results will be presented" are not acceptable. The PC also wants the number of posters to be at a level that will provide a positive viewing experience for the attendees. When submitting abstracts for HBM 2009, please consider whether multiple abstracts are truly necessary or if the data you are presenting could be accomplished via submission of one abstract. Thank you for assisting us in increasing the quality of the OHBM Annual Meeting. We look forward to welcoming you to HBM 2009. You can count on the traditional OHBM combination of exciting scientific programs and social events. Do plan to give yourself a little extra time to experience the city of San Francisco. This city by the sea is a bustling metropolis made famous by its most popular landmark, the Golden Gate Bridge. You won't be disappointed. The city has something for everyone. There is an excellent mix of art galleries, attractions, museums, quaint neighborhoods, unique shops, and many ethnic restaurants. For more information, please visit the conference website at www.humanbrainmapping.org/sanfrancisco <http://www.llmsi.com/index.php?cid=1425129&forward=2543&curlid=3>_2009_. The website will continually be updated as more information becomes available. If you have any questions, please contact us at info(a)humanbrainmapping.org <mailto:info@humanbrainmapping.org>. If you encounter issues with paying the abstract submission fee online or other technical glitches, please contact tech support at help(a)spltrak.com <mailto:help@spltrak.com>. Sincerely, Pietro Pietrini, Program Committee Susan Bookheimer, Local Organizing Chair Mark D'Esposito, Chair, OHBM <http://www.llmsi.com/index.php?cid=1425129&src=broadcastemail&optoutall=586…> -- 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

16 years, 6 months

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New publication from YNiC and York NMR Centre

by Gary Green

Dear colleagues I am pleased to announce that the following paper has just been published Para-Hydrogen Induced Polarization without Incorporation of Para-Hydrogen into the Analyte Kevin D. Atkinson, Michael J. Cowley, Simon B. Duckett, Paul I. P. Elliott, Gary G. R. Green, Joaquın Lopez-Serrano, Iman G. Khazal, and Adrian C. Whitwood in Inorganic Chemistry (2009) the preprint can be read on the web from http://pubs.acs.org/doi/abs/10.1021/ic8020029 -- 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

16 years, 6 months

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MR/PET conference, Chicago Deadline- January 14]

by awe1＠psych.york.ac.uk

---------------------------- Original Message ---------------------------- Subject: Abstract Submission Deadline- January 14 From: "BRAIN 2009" <BRAIN_2009(a)mail.vresp.com> Date: Wed, December 17, 2008 3:32 pm To: a.ellis(a)psych.york.ac.uk -------------------------------------------------------------------------- If you can not read this e-mail, click or copy this link: http://cts.vresp.com/c/?KenesInternationalIS/47498b2c69/1e6b94075d/2b16c431… ______________________________________________________________________ If you no longer wish to receive these emails, please reply to this message with "Unsubscribe" in the subject line or simply click on the following link: http://cts.vresp.com/u?47498b2c69/1e6b94075d/4c7f0bd ______________________________________________________________________ This message was sent by BRAIN 2009 using VerticalResponse Kenes International 1-3 Rue de Chantepolet P.O.Box 1726 Geneva, Geneve CH-1211 SWITZERLAND Read the VerticalResponse marketing policy: http://www.verticalresponse.com/content/pm_policy.html

16 years, 6 months

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Cortical plasticity: Annual meeting of the British Association for

by awe1＠psych.york.ac.uk

From: AHPD Departmental Contacts [mailto:AHPD-DEPTS@JISCMAIL.AC.UK] On Behalf Of John Draper Sent: 17 December 2008 15:10 To: AHPD-DEPTS(a)JISCMAIL.AC.UK Subject: FW: Call for Symposia: Annual meeting of the British Association for Cognitive Neuroscience Dear colleague, Re: Annual meeting of the British Association for Cognitive Neuroscience (BACN) I would like to invite you to submit proposals for symposia for our 2009 meeting, to be held from 21st - 23rd September at the UCL Institute of Child Health, London. The general theme of this year's meeting is 'cortical plasticity' - a broad theme, but one that is critical for understanding cognition at a number of levels: from sensory learning to language and memory. It also requires convergent methodologies and consequently we encourage you to represent the variety of modern neuroscience methods to address questions such as cognitive development, higher brain function or recovery from injury. We are also open to any alternative suggestions. We are a relatively young society that is keen to support scientists at the beginning of their career. We therefore provide several bursaries for graduate students and a poster prize for exceptional undergraduate projects, the best of whom will be invited to give a platform presentation. There will be opportunity to interact with world-leading neuroscientists from nearby UCL-based neuroscience centres (e.g. the Wellcome Trust Centre for Neuroimaging and the Institute for Cognitive Neuroscience). We also promise a lively social programme - something BACN is well renowned for! Please submit your symposium proposals by the 1st February 2009 directly to me (T.Baldeweg(a)ich.ucl.ac.uk ). Please include a provisional list of speakers and titles. Symposia usually last from 1.5h to 2.5h. Free registration for participants and contributions towards travel expenses are available. I look forward to hearing from you soon. Torsten Baldeweg Chairman BACN PS: For those of you who missed our last meeting in Swansea, a summary is published by ACNR ( <http://www.acnr.co.uk/ND08/ACNRND08_conference.pdf> http://www.acnr.co.uk/ND08/ACNRND08_conference.pdf ). The programme can be found under ( <http://psy.swan.ac.uk/bacn/conference/> http://psy.swan.ac.uk/bacn/conference/). John Draper Division of Psychology & Language Sciences UCL Gower Street London WC1E 6BT tel: 020 7679 5338 fax: 020 7436 4276 j.draper(a)ucl.ac.uk http://www.psychol.ucl.ac.uk/john.draper/john.html

16 years, 6 months

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Induced and evoked responses in MEG

by awe1＠psych.york.ac.uk

Dear all The first slide in the attached Powerpoint presentation was generated by Piers for a paper based on data gathered at Aston. The stimuli were written words. The figure shows the time-frequency plots for virtual electrodes inserted at 4 different sites in the brain, with power represented in the colour. There are 3 plots for each site showing evoked power (left), total power (middle) and induced power (right). These figures were generated in Fieldtrip where the time-frequency plots are computed with respect to a baseline. Piers has added a couple of slides which shows the steps in Fieldtrip that he used. The left middle occipital gyrus (MOGl) site is closest to primary visual cortex where the words first arrive. You will notice that the power there is mostly evoked and that the induced component is small. The same is true at the left mid fusiform gyrus (= the 'visual word form area'). Contrast that with the left and right inferior frontal gyri (IFGl), which are further from primary visual cortex. There is some evoked power at those sites, but most of the total power is induced. It seems to me that the lessons could be: 1. If you plot total power, do not automatically assume that it will be mostly induced. There are conditions and sites (close to primary sensory cortex?) where the total power may be mostly evoked. 2. Do not plot total power and call it "induced". It may not be. 3. It could be that the more synapses a response passes through, the more the power shifts from evoked to induced. That could be because different stimuli complete the passage from early to late sites at different rates in different participants with the result that the response gets jittered in time, disappears in the evoked averaging, and appears instead in the induced response. Induced responses may not always be qualitatively different from from evoked responses - they may simply be smeared out in time. (Note: This is not to deny the existence of induced responses which are NOT the result of stereotypical waveforms + jitter, but rather represents increased power in several oscillators within a given time period.) 4. It would be a good thing if the VE tools we develop in YNiC for generating time-frequency plots were capable of distinguishing evoked from induced responses and plotting them separately. Please discuss in rare pre-Christmas moments of sobriety. Andy

16 years, 6 months

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FW: HM's contribution remembered in the New York Times

by Ekaterini Klepousniotou

Dear Colleagues, HM died. Several articles have appeared that you may like to read and keep. A part of neuroscience history has passed away. All the best, Katerina **************************************************************** Dr. Ekaterini Klepousniotou Lecturer in Cognitive Neuroscience & Neuropsychology Institute of Psychological Sciences University of Leeds Leeds LS2 9JT UK Tel: +44 (0)113 3435716 Fax: +44 (0)113 3435749 ________________________________ From: MNISTAFF - Montreal Neurological Institute Staff [mailto:MNISTAFF@LISTS.MCGILL.CA] On Behalf Of Enza Ferracane, Ms. Sent: Friday, December 05, 2008 3:24 PM To: MNISTAFF(a)LISTS.MCGILL.CA Subject: HM's contribution remembered in the New York Times Dear Colleagues, Here is a wonderful article that appeared on the front page of the New York Times today commemorating the life of HM and his role as the research subject in the fundamental memory studies by Brenda Milner. HM's life story is touching: his contributions to research are recognized and his relationship with Dr. Milner and her colleagues is kindly portrayed. An article by Peggy Curran marking the death of HM and highlighting his role in Dr. Milner's research appeared in the front section of the Montreal Gazette today. Please see: http://www.montrealgazette.com/Remembering+memory/1032712/story.html Please join me in offering condolences to Dr. Milner and to her former student Dr. Suzanne Corkin (Professor of Behavioral Neuroscience, MIT) who have lost a friend. Regards, Beth Kofron Elizabeth Kofron Associate Director Montreal Neurological Institute Tel: 514-398-2316 Fax: 514-398-8248 Elizabeth.kofron(a)mcgill.ca

16 years, 6 months

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[Fwd: BNA National Meeting - abstract deadline reminder!]

by Gary Green

FYI sorry for cross-postings to members of the BNA -------- Original Message -------- Subject: BNA National Meeting - abstract deadline reminder! Date: Mon, 15 Dec 2008 12:48:27 -0000 From: Allen, Yvonne <Y.Allen(a)LIVERPOOL.AC.UK> Reply-To: bnanews <BNANEWS(a)liverpool.ac.uk> To: BNANEWS(a)liverpool.ac.uk *BNA 20^th National Meeting - abstract deadline** 31^st JANUARY!* This is a reminder that registration and abstract submission is now well underway for our 20^th National Meeting, 19^th – 22^nd April, 2009. We are delighted to be using for the first time The Adelphi, Liverpool, a unique and historic venue that now offers spacious conference facilities in addition to its other grand rooms and restaurants. And Liverpool is a fascinating city, fast emerging as one of the UK’s most stylish, cultured and vibrant conference venues in the UK. So why not come and enjoy some wonderful science in a truly magnificent city and see for yourself what’s been going on behind the cranes and the hoardings these past few years. The scientific programme is an exciting and topical array of seven world-class plenary speakers, 20 symposia and over 50 themed poster sessions. For the first time, there are also workshops and a satellite meeting, all FREE to registered delegates. With an equally exciting range of peripheral events and social gatherings (yes, there’ll even be a Magical Mystery Tour!) this will be a wonderful celebration of neuroscience on UK soil. So please, please do pass this message on as widely as possible as we warmly welcome non-members as well. Registration fees start from as little as £100 (including refreshments and lunches each day too), so why not consider supporting your national society next year? You’d be very welcome! *(www.bna.org.uk/bna2009/ <http://www.bna.org.uk/bna2009/>)* *_Important deadlines:_* _ _ Early registration (reduced fee): */31^st January, 2009/* Abstract deadline: */31^st January, 2009/* Bursary applications: */28^th February, 2009/* */ /* */***************************************************************/* ************************************************* Dr Yvonne Allen Executive Secretary The British Neuroscience Association Sherrington Buildings Ashton Street Liverpool L69 3GE Tel: 44(0)151 794 5449; Fax: 44(0)151 794 5516 Email: y.allen(a)bna.org.uk <mailto:y.allen@bna.org.uk>; Website: www.bna.org.uk <https://owa.liv.ac.uk/exchweb/bin/redir.asp?URL=http://www.bna.org.uk> **************************************************** /The British Neuroscience Association is a registered charity (1103852) and a company registered in England (4307833) limited by guarantee/ // -- 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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