I've been busy playing around with different ways to effectively show the responses of Target-Selective Descending Neurons (TSDNs) to small targets in 3D clutter. Shown below are 4 examples from the same recording, with the same target position and direction but changes to the apparent motion of the background. The orange/red trace is the spike train/response of the TSDN, while the blue outline is indicative of the receptor field of this same neuron. As is shown in these examples, the responses of TSDNs to small targets are greatly affected by the direction of any background motion.