The structure of choice. - Ronaldo Vigo; Charles A. Doan (Cogn. Syst. Res., 2015)

On the learning difficulty of visual and auditory modal concepts: Evidence for a single processing system. - Ronaldo Vigo; Karina-Mikayla C. Doan; Charles A. Doan; Shannon Pinegar (Cogn. Process., 2018)

On unifying the mind through multimodal neural representations. - Charles A. Doan (Cogn. Syst. Res., 2020)

Raising the Bar for Theories of Categorisation and Concept Learning: The Need to Resolve Five Basic Paradigmatic Tensions. - Ronaldo Vigo; Jay Wimsatt; Charles A. Doan; Derek E. Zeigler (J. Exp. Theor. Artif. Intell., 2022)