Is preparation needed before an EEG recording?

Preparing the Patient

Before starting an EEG recording, the patient should be prepared to support reliable data acquisition.

• The patient should be seated comfortably.
• The patient should be instructed to remain relaxed and minimize movement during the recording.
• The patient should relax the face, jaw, neck, and shoulders to help reduce muscle-related artifacts.

EEG Cap Preparation

Proper preparation of the EEG cap is essential before recording begins.

• Ensure all adapter cables are connected to the correct electrode positions on the EEG cap.
• Moisten the sponge inserts with 0.9% saline solution.
• Position the EEG cap correctly and comfortably on the patient's head.
• Attach the reference and ground electrodes securely to the ear lobes.
• Insert and secure all sponge holders in the cap.

Signal Quality Check

Before starting the recording, signal quality should be reviewed in the SAM software.

• Review signal quality for all channels.
• Confirm that all channels show acceptable and stable signal quality.
• If signal quality is not stable, address the issue before proceeding with the recording.

Notes

• Patient preparation, EEG cap setup, and signal quality verification should be completed before recording begins.
• EEG acquisition includes both eyes-open and eyes-closed recording conditions.
• Recording should only begin once signal quality is stable.