According to ACNS guidelines, what are the recommended filter performance specifications?

The correct specification according to the ACNS guidelines for filter performance in electroencephalography (EEG) is a low-frequency filter (LFF) of 0.5 Hz and a high-frequency filter (HFF) of 70 Hz. This range is considered optimal for standard EEG recordings to allow for adequate detection and representation of both low and high-frequency brainwave activity, which is crucial for accurate interpretation of the data.

Setting the low-frequency filter at 0.5 Hz enables the detection of significant slow wave activity that may be present in conditions such as sleep or various pathologies. Meanwhile, the high-frequency filter at 70 Hz helps to minimize high-frequency noise, including muscle artifacts and other non-brain signal interference, while still capturing the relevant high-frequency brain activity, such as gamma oscillations.

This specification supports the core objective of maintaining the integrity of neurological data while ensuring the clarity and quality of the EEG recordings for effective analysis and diagnosis. Thus, option B aligns perfectly with these recommended guidelines, ensuring the appropriate balance is struck for clinical and research applications.