Final answer:
MST neurons are selective for complex motion stimuli, including the speed and direction of moving objects, in addition to patterns like radial, circular, or spiral motion.
Step-by-step explanation:
MST neurons, which stand for Medial Superior Temporal neurons, display selectivity for complex types of motion stimuli. These neurons are vital for processing the movement of objects in visual space and are particularly attuned to the speed and direction of moving stimuli, as well as more complex patterns like radial, circular, or spiral motion. MST neurons are part of the dorsal stream of the visual system, which is involved in the processing of visual motion and the control of action.