Now we will fit the electrode that goes behind the participant's right ear. 

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If the electrode is positioned too low beneath the boney area, the heartbeat in the fleshy part of the neck may cause interference, so try to stick the electrode down directly in the middle of the prepared area on the 'bone bump' behind the participant's right ear.

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Insert this electrode into the A2 port of the headbox (3rd in from the front left).