The purpose of this paper is to examine the "dual-process" information-processing model of Schneider and Shiffrin (Schneider, W., and Shiffrin, R. M., Psychol. Rev. 84: 1-66, 1977; see also Shiffrin, R. M., and Schneider, W., Psychol. Rev. 84: 127-190, 1977) in light of the research data that have accumulated since the model was introduced more than 20 years ago. First, a brief introduction of the basic model of automatic and controlled information processing will be given. Second, some alternatives to the basic model that were developed over the last two decades will be reviewed. Third, data from neuropsychology and cognitive neuroscience that have a bearing upon this framework will be considered. Finally, some comments on the current usefulness of the dual-process framework for neuropsychological research will be offered.