Highlights d Brain coding of solid shape emerges at the beginning, not end, of object processing d Early-stage area V4 processes flat and solid shape in parallel in distinct modules d Artificial deep visual networks (AlexNet) also encode solid shape in early layers

Highlights d Visual area PSS is a higher-level motion area in ferrets d PSS neurons show signatures of motion integration d PSS responses can be fit by a motion pathway model similar to ones for the primate d Complex motion processing in ferrets parallels that in primates