What is the advantage of the 24 bit resolution?
Around 1985-1990 the industry standard was 8 bit. That provided about 250 steps of digital information for EEG, Respiration, Temperature etc. Soon after that the industry stepped up to 10 and 12 bit. (around 1990-1995) Back then, the best systems had somewhat higher resolution like 13 or 14 bit. That was 10 years ago. Although most people now agree that 16 bit resolution is sufficient for most physiological signals, the NeXus engineers have taken it one step further. With 24 bit you will probably not run out of bandwidth for the next 5-10 years to come. NeXus can detect extremely small physiological changes , such as less than 1/10000th degree of skin temperature or 1/10000th microseconds of skin conductance. This has clinical relevance. Where other systems go flat-line, NeXus still detects real physiological activity. Once you have seen it in action, you probably do never want to go back to 14 bits, 12 bits or less.
