Inhibition (using Hsap\KCNJ2UAS.cUa.EGFP) of a subset of Scer\GAL4VT058487 cells (restricted using Scer\GAL80tsh-GAL80) in adults results in significantly smaller optomotor head movements in response to visual stimuli, compared to controls, with small non-significant reductions in wing steering responses at higher visual motion speeds.