The low locomotive mobility of mice in group 4 (Fig. 1) was appeared to be derived from disruption of hypothalamic motor networks, since pathological changes were discretely localized at the circumventricular structures (Fig. 2) and their muscle strength was normal. Several animal experiments have highlighted the importance of the hypothalamus for motor command, and indicate that hypothalamic command signals are primarily responsible for the driving of locomotion and that locomotor stepping is mediated by the perifornical and lateral hypothalamus22,23,24, while flight-directed locomotion and escaped jumps are mediated by medial hypothalamus25. The hypothalamus has also an important role in integration of neuronal circuitry for motor regulation, with connections to cingulate motor cortex in the limbic system, which project to the spinal cord and red nucleus, and have premotor functions26. Since low mobility of the body on locomotive movements can be also seen frequently in patients suffering from HANS, we hypothesize that locomotive impairments in both murine motor phenotype and human HANS are linked to disrupted hypothalamic motor areas.