laine Hsiao. a postdoctoral fellow in chemistry and biology at Caltech, in this TEDx talks about various mechanisms by which microbes modulate host production of neuroactive molecules and aims to better understand how the human microbiota influences health and disease. Here she throws light on Neuroimmune mechanisms underlying the pathogenesis of neurodevelopmental disorders and uncovered a role for the commensal microbiota in regulating autism-related behaviours’, metabolism, and intestinal physiology.