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Vagal afferent pathway for nausea and emesis. NTS = nucleus of the solitary tract. Brain areas potentially involved in nausea are included, such as the insular cortex and amygdala, but other regions potentially play role (Vandenberghe et al. 2007; Catenoix et al. 2008; Mulak et al. 2008; Wang et al. 2008; Napadow et al. 2012).
