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Merge pull request #223 from BioMedicalImaging-Core-NYUAD/meg-updates
checklist update nov2025
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docs/source/2-meg-kit-system/5-operational-protocol-meg-session-checklist.rst

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@@ -24,16 +24,31 @@ Before Participant Arrival
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.. checklist::
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- [ ] Disinfect surfaces (bed, helmet), HPI-coils (gently), and earphones using disinfectant wipes.
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- [ ] Assemble bedsheet, new earphone covers, and pillow cover.
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- [ ] Place clean bedsheet, pillow cover and new earphone covers.
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- [ ] Cut 15 pieces of tape (~3-inches in length) for attaching HPI coils.
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- [ ] Switch on EyeLink and Eye-tracking computer (if applicable).
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- [ ] Test speakers, microphones, response boxes, and screen inside Magnetically Shielded Room (MSR).
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- [ ]
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- [ ] Call security to request switching off all devices until the session is completed.
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- If the participant wears hijab:
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- [ ] Request all male researchers to leave the lab for the session duration.
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- [ ] Put up the “ladies only” sign on the outside of the lab door.
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- [ ] Set up the divider near the door.
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MSR Preparation
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^^^^^^^^^^^^^^^
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.. checklist::
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- [ ] Ensure that the Marker Box is switched on.
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- [ ] Switch on the ProPixx screen from the stimulus computer.
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- [ ] Test the speaker and microphone by asking the participant if they are able to hear you.
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- [ ] Test the eye-tracker calibration (if applicable).
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- [ ] SWITCH OFF THE HEATER
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Participant Preparation
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^^^^^^^^^^^^^^^^^^^^^^^
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@@ -48,27 +63,18 @@ Participant Preparation
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- [ ] Set all devices to Airplane Mode (phones, smart watches).
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- [ ] Briefly explain the laser scan process.
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- [ ] Equip the participant with a tight-fitting cap to smooth their head shape.
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- [ ] Mark the participant's head with a felt-tip marker.
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- [ ] Place brace around participant's neck covered with paper towel for hygiene
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- [ ] Draw the Marker points on the participants head with a felt-tip marker.
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- [ ] Ask the participant to close their eyes and remain still during the laser scan.
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- [ ] Conduct the laser scan (sweeps and points).
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- [ ] Guide the participant to the MSR.
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- [ ] Explain the process of attaching HPI coils and the study setup (bed, screen, eye-tracker).
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- [ ] Attach the coils to the participant’s head using the guide on the wall and the cable labels.
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- [ ] Help the participant lie down carefully on the bed, ensuring the coils do not detach or shift.
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- [ ] Equip the participant with one earphone.
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- [ ] Equip the participant with earphones.
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- [ ] Provide the participant with the leg pillow and blanket for comfort.
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MSR Preparation
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^^^^^^^^^^^^^^^
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.. checklist::
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- [ ] Ensure that the Marker Box is switched on.
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- [ ] Switch on the ProPixx screen from the stimulus computer.
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- [ ] Test the speaker and microphone by asking the participant if they are able to hear you.
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- [ ] Test the eye-tracker calibration (if applicable).
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- [ ] Switch off the lights and shut the MSR door.
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- [ ] Switch off the heater.
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MEG Recording
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^^^^^^^^^^^^^
@@ -78,9 +84,10 @@ At the MEG Main Computer:
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.. checklist::
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- [ ] Open MEGLaboratory: click Acquire > Autotuning > OK and wait for the autotuning process to complete.
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- [ ] Click Acquire > MEG Measurement > Sensor Check and wait 1–2 minutes until signals stabilise.
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- [ ] Click Acquire > MEG Measurement > Sensor Check and perform for 30 secs to 1 minute.
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- [ ] While waiting, fill in subject details (e.g., “sub-007”).
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- [ ] Create the subject folder and copy/paste the folder path so that the data is saved correctly.
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- [ ] Disable Sensor Check button
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- [ ] Once signals are stable, click Lock.
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- [ ] Wait for Lock to complete and for the signals to stabilise again.
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- [ ] Take a marker measurement: click MEG Measurement > Marker Measurement > Start.
@@ -98,7 +105,8 @@ After MEG Session
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- [ ] Save the .con file to the participant folder.
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- [ ] Take a second marker measurement: click Acquire > MEG Measurement > Marker Measurement.
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- [ ] Once the MEG measurement is complete, click Unlock.
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- [ ] Open the MSR door. Assist the participant in sitting up and carefully remove the HPI coils.
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- [ ] Switch on the lights and open the MSR door.
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- [ ] Assist the participant in sitting up and carefully remove the HPI coils.
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- [ ] Guide the participant back to the laser scan room and instruct them to change back into their clothes and collect all belongings.
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- [ ] Switch the heater back on.
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- [ ] Provide the participant with compensation (if applicable).
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- [ ] Remove and stow used bedsheets and pillow covers in the laundry basket, and used earphone covers in the bin.
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- [ ] Disinfect MSR surfaces (bed, helmet), HPI coils (gently), and earphones using disinfectant wipes.
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- [ ] Call security to inform them that the session is complete (if finished early).
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- [ ] Replace the 15 pieces of tape - ready for the next experiment
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Saving The Data
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^^^^^^^^^^^^^^^

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