highly significantp < 0.05
Neumayer III (sea level) versus Concordia (high altitude) The differences in NAEs and EC (AEA and 2-AG) values between the crews at Neumayer III (sea level) and Concordia (high altitude) were highly significant for all neurotransmitters and nearly throughout the whole isolation period and duration of stay in Antarctica ( AEA June p < 0.05, for all other months except the end of the stay p < 0.001. 2-AG for all months p < 0.001 except BDC.