In the paper, we propose a multi-aspect data mining process for investigating a more whole human information process mechanism systematically. As an example to demonstrate the proposed mining process, we explain how to design the experiments of an ERP mental arithmetic task with visual stimuli for investigating human computation centric information processing mechanism, and describe how to do multi-aspect analysis in the obtained ERP data, respectively. Furthermore, we give some preliminary results to show the usefulness of our methodology and to discuss the future research directions. © 2007 IEEE.