The conditions for serial search are described. A multiple target search methodology (Thornton & Gilden, 2007) is used to home in on the simplest target/distractor contrast that effectively mandates a serial scheduling of attentional resources. It is found that serial search is required when (a) targets and distractors are mirror twins, and…

Three experiments report additional evidence that it is a mistake to account for all interletter effects solely in terms of sensory variables. These experiments attest to the importance of structural variables such as retina location, array size, and ordinal position. (Author/PN)

A system of precategorized acoustic storage has accounted for the recency effect obtained in the immediate serial recall of sequences of digits, consonants, or syllables. Four experiments in recall of word sequences investigated fit to this model. A system of postcategorical lexical storage was concluded to explain the results. (Author/RD)