VOLTAGE RESOLUTION in EEG refers to which aspect?

Voltage resolution in EEG typically refers to the measurement of the smallest change in voltage that can be accurately detected and represented by the system. This aspect is fundamentally linked to the capabilities of the analog to digital converter (ADC), which quantifies the continuous analog EEG signals into discrete digital values.

The voltage resolution is determined by the number of bits used by the ADC; for instance, a 12-bit ADC can distinguish 4096 different voltage levels, which directly influences the fidelity and detail of the recorded EEG data. Higher resolution allows for more precise capture of the brain's electrical activity, thereby providing a clearer and more accurate representation of the underlying neural signals.

Understanding voltage resolution is essential for ensuring that the recorded EEG can reflect subtle changes in brain activity, which is crucial for diagnosis and treatment planning in clinical practice.