Phenotypic and genetic associations between gray matter covariation and tool use skill in chimpanzees (Pan troglodytes): Repeatability in two genetically isolated populations. - Michele M. Mulholland; Steven J. Schapiro; Chet C. Sherwood; William D. Hopkins (NeuroImage, 2022)

Gray matter volume and asymmetry in Broca's and Wernicke's area homologs in chimpanzees (Pan troglodytes) using a probabilistic region of interest approach. - William D. Hopkins; Muhammad A Spocter; Michele M. Mulholland; Chet C. Sherwood (NeuroImage, 2025)