Typically, heart rate (HR), respiratory rate (RR) and Galvanic Skin Response (GSR) change as a response to autonomic feedback from many emotional and physical stimuli. However, not all small differences in values picked up by Biopac measurements reflect true changes in these responses (eg. if heart rate goes from 60 to 60.1 BPM, this is unlikely a significant increase. What range in values would you consider the change to be insignificant for HR, RR and GSR data? Why?