Reports an experiment with tasks involving memory search for a given probe word with respect to a set of semantic category labels for subjects in a word comparison task and a set of semantic category labels for subjects in the categorization task. The memory search process is fundamentally different in categorization and comparison tasks. (CLK)

Two experiments tested a set of predictions regarding category definitions and categorization latencies. Neither prediction was supported by the experiment results, leading to the formulation of an alternative feature-based model of category definitions using the notion of a polymorphous concept. (Author/AM)

Reports on two experiments conducted to test the hypothesis that the spacing effect in free recall results from greater semantic-feature variability across distributed repetitions than massed repetition. (AM)

Reports on a study designed to show that Tulving's theory of encoding specificity and Bahrick's theory of associative continuity are not contradictory, rather complementary. (CLK)

This article describes an experiment which explores the relationship between the interval between the two occurrences of the repeated item to be recalled and the memory for the repeated item, and argues that both spacing and lag effects are dependent upon factors associated with study-phase retrieval. (CLK)

Reports on research on the effect of various encoding and retrieval conditions on sentence recall. (AM)

Examines in some detail Richard Semon's analysis of human memory, places this analysis in its historical context, and discusses some reasons why this work is virtually unknown today. (Author/AM)

Describes a process model for sentence verification, including sentences expressing the implications of their antecedents. The model's distinctive features are the assumption that verification is based upon a focal element in the test sentence, and the comparison of this element with information corresponding to it in the antecedent…

States that recall of items given spaced repetitions is generally superior to recall of items given immediate repetitions. Reports on a test of Jacobi's hypothesis that this spacing effect is explained by the distinction between problem solving and remembering. Suggests that the effect cannot be explained solely by this distinction. (Author/MES)

Two experiments explored how memory for new information is affected by awareness of parallels to pre-experimental knowledge. Results suggest that the benefit of prior knowledge derives from the more elaborate encodings that analogy promotes. (Author/AM)

A series of three experiments investigated repetition effects on recall with homographic responses. It was concluded that the repetition increment was mediated solely by commonality of surface features and that semantic features played no role. (Author/AM)

Presents a series of four experiements designed to test the view that the process where a spoken suffix impairs retention of a sequence's last item has a different basis from that producing impairment of the retention of an earlier item. (AM)

Examines the reasons for differences in conclusions about the way conditional sentences are comprehended. (AM)

Reports on an experiment in which performance on abstract and concrete sentences was compared in a sentence meaning classification task and in a free recall task. Results show that concrete sentences were classified significantly faster than abstract ones. (CLK)

Presents a computer simulation testing semantic networks and spreading activation models of human memory. Describes how a sentence is encoded by building a working memory structure from its words and from semantic memory concepts related to its meaning. Retrieval processes use cue words or sentences to locate working memory structures. (Author/MES)