What is the sensitivity setting recommended for EEG channels with normal amplitude?

The sensitivity setting recommended for EEG channels with normal amplitude is typically set at 7uV/mm or 70uV/cm. This setting allows for adequate visualization of the brain's electrical activity without overwhelming the recording with excessive detail or noise. Sensitivity determines how well small amplitude changes can be detected and displayed on the EEG, so setting it at this level ensures that significant brain waves can be recorded while still allowing for clearer analysis of the data.

In general, more sensitive settings (such as 5uV/mm or 50uV/cm) might be used in specific circumstances where detecting very low amplitude activity is crucial. Similarly, higher sensitivity settings (like 10uV/mm or 100uV/cm, or even 15uV/mm or 150uV/cm) could lead to oversaturation of the display and make it challenging to interpret key features within the EEG data, like spikes or specific waveforms during an event. Thus, the choice of 7uV/mm or 70uV/cm is established in practice as a balanced standard for normal amplitude EEG recordings.