The ability of AVP and ADr (especially together) to increase myogenic contractions is consistent with AVP‐induced EGG tachygastria (Caras et al., 1997), a role for catecholamines in inducing tachygastria during motion sickness (Chen et al., 1993) and with electrical tachygastria during nausea (Koch, 1997). Here, AVP is linked to motion sickness.