Cleaning procedure
Removing cap
Unplug everything (from amp/port), remove cap from participant head by pulling from side
Make sure to detach cords from participant’s shirt / skin
Ask them to remove electrodes you can’t access
Carry cap in one hand, cables in other hand, take to kitchen area and place on dry towel
Remove EEG battery from amplifier and take it to charge
Clean in kitchen
Use tool to remove optodes
Put tip between optode and holder and push like a staple remover
Remove all optodes and put aside
Wrap the black splitter box (EEG) in towel (has to stay dry!)
Fill bowl with water & place cap with electrodes in bowl
Optodes: (have to stay dry!)
Try to separate bundles, detangle as much as possible
Clean tips with alcohol swaps, try to get gel off the wires
When finished, place in to phantom head
Move optodes (in phantomhead) out of kitchen when done
Electrodes: (have to get wet! cannot touch metal!)
Place cap and electrodes in bowl with splitterbox wrapped in towel on the side
Use 2 fingers to slide electrodes out of holders, number labels can help
When all electrodes are removed, put cap aside to soak
Take a bundle of 4 electrodes at a time, get gel out with toothbrush, push white holder down to keep electrodes from tangling
Touch electrodes to make sure gel is completely off
Put cap under water – place each hole under water, then scrub with toothbrush
When gel is removed, put in separate bowl for disinfection
Use metricide to soak (3 sprays) 3-5 min!!
Rinse cap and gently squeeze water out
Place electrodes and cap on the drying rack in the lab
Cleaning skin conductance & heart rate sensors
Hang cleaned sensors on the rack next to the shelf in the back of the lab
Skin Conductance
Cannot get wet
Use tissue to get all gel residue off * Make sure no residue is remaining
Heart Rate
Use damp cloth to gently wipe
Use tissue / kitchen towel to dry