Diff for "RunningStudies" - Meg Wiki
location: Diff for "RunningStudies"
Differences between revisions 53 and 75 (spanning 22 versions)
Revision 53 as of 2013-09-03 14:18:12
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Revision 75 as of 2017-01-10 12:30:28
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Editor: ClareCook
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StimulusDetails '''[[http://intranet.mrc-cbu.cam.ac.uk/imaging/meg/|MEG researcher Status]] (compulsory to use the MEG lab)'''
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ResponseCollection '''[[http://intranet.mrc-cbu.cam.ac.uk/imaging/meg/|MEG operator status]] (compulsory to operate the MEG lab)'''
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[[Triggers]] '''[[ConvertingE-PrimeScripts]]'''
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EyeTracking '''InterCom'''
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SubjectPreparation '''[[Resources]]'''
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CheckStimulusBeforeTesting '''[[StimulusDetails|Stimulus Presentation]]'''
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AcquisitionTips '''[[ResponseCollection|Response Collection]]'''
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=== General ===
All MEG studies require the presence of a qualified "MEG researcher" and a qualified "MEG Operator", as defined in the the [[http://intranet.mrc-cbu.cam.ac.uk/imaging/meg/megdocuments/|StandardOperatingProcedures]] (SOPS) which you need to read before running any studies in the MEG lab. The Operator will actually run the MEG machine. If you are interested and feel it would be beneficial for you to train to be an operator, please e-mail megadmin@mrc-cbu.cam.ac.uk .
'''[[Triggers]]'''
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To run your study with an operator, you will have to become authorised as an MEG researcher. The authorisation procedure is described in the SOPs; briefly, it includes a general introduction to the lab by a qualified operator, reading the SOPs, an assessment of your knowledge of the procedures (particular attention is paid to volunteer and equipment safety aspects) and attending an ongoing MEG study. For each of these points a signature of one of the operators is required. The form on which these signatures should be gathered can be found in one of the drawers in the desk in the MEG lab. '''[[EyeTracking|Eye Tracking]]'''
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Even though it is the Operator who will run the data acquisition machine, proper project settings for data acqusition are a responsibility of a particular MEG researcher. Please, once you are ready to run your study, contact the operators well in advance to discuss the settings and stimulation requirements. '''[[SubjectPreparation|Subject Preparation]]'''
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Keep a record of all your settings (MEG project and settings, stimulus files, trigger boxes, response pads and connections), including drawing the connections between the trigger boxes. Check that everything is OK every time you run your study, make sure all your settings and connections are correct and all your trigger channels light up. Run a trigger-testing e-prime script (available in the lab) to double-check. The operators cannot possibly keep all different experimental settings in their memory, and will not do this. They will try to help when they can, but if you don't know your triggers, no one else will. If you feel you a need a chance to test these things out before your first pilot, then please e-mail megadmin@mrc-cbu.cam.ac.uk as there may be a spare slot you can use, or the possibility of using the helium refill or after hours time to test this. It is the responsibility of the researcher to make sure everything is prepared prior to the first pilot. '''[[CheckStimulusBeforeTesting|Check Stimulus Before Testing]]'''
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Running the stimulation computers and making sure your paradigm is compatible with the MEG machine is the researcher's responsibility. The operators will not run your stimulus delivery programs for you. '''[[AcquisitionTips|Acquisition Tips]]'''

== General ==
=== Before you start your study ===
 * You have to become a '''"[[http://intranet.mrc-cbu.cam.ac.uk/imaging/meg/|Qualified MEG Researcher]]"''', as outlined in our Meg researcher procedure and in the Standard Operating Procedures ([[http://intranet.mrc-cbu.cam.ac.uk/imaging/meg/megdocuments/|SOPs]]) Please not that our MEG researcher training only provides the minimum of training required to enable you to run a study. Researchers without prior EEG or MEG experience may need more training in order to ensure good data quality in their own experiments. The planning, setting up and piloting of experiments is the responsibility of the researchers, and should be undertaken well in advance and in collaboration with PIs, group leaders or other collaborators as appropriate. Contact mri.admin@mrc-cbu.cam.ac.uk to start the process.
 * You need [[http://imaging.mrc-cbu.cam.ac.uk/imaging/ImagingManagementCommittee|IMC]]/[[http://imaging.mrc-cbu.cam.ac.uk/imaging/ImagersInterestGroup|IIG]] '''approval''' for your study.
 * You have to create an '''acquisition set-up''' for your study, e.g. specifying whether you will record EEG, EOG, ECG, low-pass filters etc. You should contact Olaf Hauk well in advance in order to arrange a meeting in the MEG lab.
 * Every MEG recording needs to be operated by a '''"[[http://intranet.mrc-cbu.cam.ac.uk/imaging/meg/|Qualified MEG Operator]]"''' (see SOPs). If you want to operate recordings yourself (in company of another qualified researcher), you need to undergo additional training as specified in the SOPs. This training has to be arranged on an individual basis, and we currently cannot guarantee a specific time frame.
 * '''Pilot your study''': 1) Test your stimulus presentation software on the "CBU mimic" PC in the computer users room. This PC has the same settings as the stimulus presentation PCs in the MRI and MEG labs. 2) Run an "emtpy room recording" in the MEG lab to make sure your stimulus presentation works in the MEG lab, and your recording settings are correct (e.g. MEG, EEG, EOG/ECG channels, triggers; sound output is recorded in MISC0005). Contact mri.admin@mrc-cbu.cam.ac.uk or Olaf Hauk to arrange this. 3) Run a proper pilot (ideally with a participant you know), and run some basic analyses to make sure the data are what you expected.

=== During Data Acquisition ===
While it is the responsibility of the qualified MEG operator to make sure the recording is running smoothly, the researcher should make sure all the settings for stimulus presentation and data acquisition are correct.

These are a few things to look out for at the beginning of each recording:

 * Check if stimulus presentation equipment and response collection work as desired (are stimuli audible, visible etc.?)
 * Has the correct preparation (incl. digitisation and subject ID) been loaded?
 * Have the correct project and acquisition settings been loaded?
 * Are triggers visible in STIM channel?
 * Does the EEG look ok? Note bad channels.
 * Are HEOG/VEOG/ECG in correct channels and look ok?

mrclogo.gif

Running MEG studies

MEG researcher Status (compulsory to use the MEG lab)

MEG operator status (compulsory to operate the MEG lab)

ConvertingE-PrimeScripts

InterCom

Resources

Stimulus Presentation

Response Collection

Triggers

Eye Tracking

Subject Preparation

Check Stimulus Before Testing

Acquisition Tips

General

Before you start your study

  • You have to become a "Qualified MEG Researcher", as outlined in our Meg researcher procedure and in the Standard Operating Procedures (SOPs) Please not that our MEG researcher training only provides the minimum of training required to enable you to run a study. Researchers without prior EEG or MEG experience may need more training in order to ensure good data quality in their own experiments. The planning, setting up and piloting of experiments is the responsibility of the researchers, and should be undertaken well in advance and in collaboration with PIs, group leaders or other collaborators as appropriate. Contact mri.admin@mrc-cbu.cam.ac.uk to start the process.

  • You need IMC/IIG approval for your study.

  • You have to create an acquisition set-up for your study, e.g. specifying whether you will record EEG, EOG, ECG, low-pass filters etc. You should contact Olaf Hauk well in advance in order to arrange a meeting in the MEG lab.

  • Every MEG recording needs to be operated by a "Qualified MEG Operator" (see SOPs). If you want to operate recordings yourself (in company of another qualified researcher), you need to undergo additional training as specified in the SOPs. This training has to be arranged on an individual basis, and we currently cannot guarantee a specific time frame.

  • Pilot your study: 1) Test your stimulus presentation software on the "CBU mimic" PC in the computer users room. This PC has the same settings as the stimulus presentation PCs in the MRI and MEG labs. 2) Run an "emtpy room recording" in the MEG lab to make sure your stimulus presentation works in the MEG lab, and your recording settings are correct (e.g. MEG, EEG, EOG/ECG channels, triggers; sound output is recorded in MISC0005). Contact mri.admin@mrc-cbu.cam.ac.uk or Olaf Hauk to arrange this. 3) Run a proper pilot (ideally with a participant you know), and run some basic analyses to make sure the data are what you expected.

During Data Acquisition

While it is the responsibility of the qualified MEG operator to make sure the recording is running smoothly, the researcher should make sure all the settings for stimulus presentation and data acquisition are correct.

These are a few things to look out for at the beginning of each recording:

  • Check if stimulus presentation equipment and response collection work as desired (are stimuli audible, visible etc.?)
  • Has the correct preparation (incl. digitisation and subject ID) been loaded?
  • Have the correct project and acquisition settings been loaded?
  • Are triggers visible in STIM channel?
  • Does the EEG look ok? Note bad channels.
  • Are HEOG/VEOG/ECG in correct channels and look ok?

//MegCbu

If you are using any non-standard equipment or make any changes in the settings (be they hardware or software), make sure to undo your changes in the end of your recording slot and leave the lab in the same state you found it before the recording.

For your general information, manuals for the data acquisition software are available to people with Cambridge approved logins at ElektaSoftwareManuals.

CbuMeg: RunningStudies (last edited 2017-01-10 12:30:28 by ClareCook)