C. L. Folk, R. W. Remington, and J. C. Johnston's (1992) contingent involuntary orienting hypothesis states that a salient visual feature will involuntarily capture attention only when the observer's attentional set includes similar features. In four experiments, when the target's relevant feature was its being an abruptly onset singleton,…

Several recent theories of information processing share the common assumption that retrieval from long-term memory is governed by the operation of two distinct processes, e.g., Posner and Snyder (1975). Examines their research through two components of attention: a fast automatic inhibitionless spreading-activation process and a slow…