Echavarria, Cesar, Shahin Nasr, and Roger Tootell. 2016. “Smooth versus Textured Surfaces: Feature-Based Category Selectivity in Human Visual Cortex.” eNeuro 3 (5): ENEURO.0051-16.2016. doi:10.1523/ENEURO.0051-16.2016. http://dx.doi.org/10.1523/ENEURO.0051-16.2016.