Table 1. Wilcoxon sign test performed separately for MCS and UWS patients, to test whether the global and local effects as measured from HERs and ERPs come from a distribution with median different to zero.

Bold indicates significance reached at α=0.05/8=0.0063, according to Bonferroni correction for multiple comparisons.

Patients	HERs		ERPs
	Global effect	Local effect	Global effect	Local effect
MCS	Z=2.7805 p=0.0054	Z=3.2175 p=0.0013	Z=3.7529 p=0.0002	Z=5.0311 p<0.0001
UWS	Z=–1.9759 p=0.0482	Z=–2.9840 p=0.0028	Z=–1.9624 p=0.0497	Z=2.9033 p=0.0037

HERs: heartbeat-evoked responses, ERPs: auditory event-related potentials, MCS: minimally conscious state, UWS: unresponsive wakefulness syndrome.