Appetitive learning requires the alpha1-like octopamine receptor OAMB in the Drosophila mushroom body neurons.
Kim YC, Lee HG, Lim J, Han KA. Appetitive learning requires the alpha1-like octopamine receptor OAMB in the Drosophila mushroom body neurons. J Neurosci. 2013 Jan 23; 33(4):1672-7.