Other neuropeptides are also responsible for modifying the activity of neural circuits related to motivation, such as neuropeptide S (NPS) and NPY, which influence arousal, stress, reward, memory, and reduce anxiety (Morgan et al., 2000; Guerrini et al., 2010; Tasan et al., 2010; Jungling et al., 2012; Cannella et al., 2013). Here, NPY is linked to Anxiety.