COVID safety notes


Being prepared

Paperwork to have ready:

Important Supplies:

First Steps:

Put your phone on silent


Setting Up the Pariticipant

When the participant arrives, ask them to remove all electronics (i.e. phones, watches, earbuds, etc.) and store them in a safe space.

Give the participant the informed consent sheet and any other paperwork that needs to be done at this time.

Using the tape measure, have the participant hold the start of it in the center of their forehead, just above the eyebrows. Make sure that the bottom of the tape measure touches the tops of the ears and the inion. Write down the total number in cm (this measurement will tell you if they require a S, M, or L cap).

Have the participant hold the tape measure against their nasion and go over the top, center of their head until you reach the inion. Take 10% of that number, then measure that distance on the participant's forehead and mark it with a grease pen (this will be a reference for where the front of the cap should be placed).

[ATTACH] image at: https://sleepdata.org/datasets/cfs/pages/manuals/polysomnography/17-08-03-01-identify-landmarks.md

Guide the participant into the EEG study room and check the EEG cap log to make sure to use the least recently used cap in that size.

Have the participant brush through their hair with a disposable comb and clean off their face with a towelette (specifically on their nose and around their eyes, as electrodes will be placed there).

With the proper cap, have the participant sit still. Align the front of the cap with the grease mark using your thumbs along the front edge to hold it in place, and assure that the central electrodes are lined up with the center of their head. Pull the cap over their head using the rest of your fingers.

Have the subject hold the cap connector

Remove the backside of the sticky disc and apply each electrode

Have the participant face the monitor, and adjust the chair and the chin rest so that they are in a comfortable position. Be sure that it is a position they can stay in comfortably for an extended period of time, as we want them to be comfortable during the experiment.

When they are comfortable, connect the cap connector to amplifier and turn the amplifier on.


EEG Data Collection Checklist


"Standard" Processing Steps


Cleaning Up

Shut down computers in the following order:

Needle end of syringes should be disposed of in the biohazard container. Leave remaining gel in syringe, but pull plunger back a small bit to pull gel back from tip.

Throw out any used paper towels, swabs, and other disposable items used in the study

Put any used towels in the laundry basket.

Put measuring tape in the disinfectant bucket.

Remove the reference electrodes from the cap and throw away the sticky disks. Using the water pick, on setting 4, spray the electrode and make sure there is no remaining gel. Spray through the hole as well to make sure its clean. Then, place the reference electrodes in the disinfectant bucket.

Keeping the cap connector away from the water, gently rinse the cap in sink, try to keep its shape without stretching the material.

Turn cap inside out and using the water pick, on setting 4, spray each electrode cup to remove any gel, make sure to move the stream through the hole in the electrode.

Rinse the cap under the faucet once more to remove stray gel. Inspect each electrode and make sure no gel remains! Also clean off any gel that remains on the fabric of the cap.

Remove the measuring tape and electrodes from the disinfectant, and lay them out on paper towels to dry.

Place the cap in the disinfectant bucket for 2 minutes, again keeping the cap connector away from the liquid. Then remove and rinse well.

Cover the foam head with a few sheets of paper towels and place cap on head. Position the cap so that it sits loosely and not bunched up anywhere.

Make sure to log any technical irregularities with the net (bad electrodes, etc.) in the collaborators’ EEG net usage logbook.

If more distilled water is needed (basically if there is any less than a full supply --so probably almost always), distill another batch