What connection type is often preferred for sensitive EEG recordings?

Low impedance connections are preferred for sensitive EEG recordings because they help reduce noise and artifacts that can compromise the quality of the signal. A low impedance connection ensures that the resistance between the electrodes and the skin is minimized, which facilitates better electrical conduction. This is particularly important in EEG, where the signals being measured are very small and can easily be overshadowed by electrical interference.

In addition, low impedance connections enhance the ability to accurately capture the subtle brain wave activity that the EEG is designed to monitor. By maintaining low resistance, these connections improve signal fidelity and consistency, leading to more reliable data for interpretation. This is essential in sleep studies and other neurological assessments where precise measurements are crucial for diagnosis and treatment planning.