Hopkins, W. D., Procyk, E., Petrides, M., Schapiro, S. J., Mareno, M. C., & Amiez, C. (2021). Sulcal Morphology in Cingulate Cortex is Associated with Voluntary Oro-Facial Motor Control and Gestural Communication in Chimpanzees (Pan troglodytes). Cereb Cortex.

Hopkins, William D., Emmanuel Procyk, Michael Petrides, Steven J. Schapiro, Mary Catherine Mareno, and Celine Amiez. "Sulcal Morphology in Cingulate Cortex Is Associated With Voluntary Oro-Facial Motor Control and Gestural Communication in Chimpanzees (Pan Troglodytes)." Cereb Cortex 2021.

Hopkins, William D., et al. "Sulcal Morphology in Cingulate Cortex Is Associated With Voluntary Oro-Facial Motor Control and Gestural Communication in Chimpanzees (Pan Troglodytes)." Cereb Cortex 2021.