There has long been recognition of the limitations of hierarchical file systems, particularly when people need collections of files, email and web pages for a new task. An associative file access mechanism offers promise in addressing these limitations. Such a mechanism is particularly appealing for personal file access at pervasive interaction devices, such as tabletops, providing an excellent...

conditioning in the isolated nervous system is attenuated in presence of the NMDA receptor antagonist APV. This finding is consistent with the results of Lin and Glanzman (1994), which indicated that the influx of calcium through NMDA receptors in the postsynaptic neu-ron is necessary for facilitation, and suggests that a Houston, Texas 77030 Hebbian mechanism is important for classical conditi...

Early work on spatial navigation evaluated what stimuli (kinesthetic or extra-maze) support small-scale navigation and the nature of the underlying learning (place versus response) process. Contemporary research has focused primarily on how cues interact to determine spatial search. This review covers three general findings from research on landmark-based spatial search in vertebrates. First, p...

Associative recognition—the ability to discriminate between studied and novel associations—has been attributed to the operation of a recall-like process that is not engaged during recognition of single items. An alternative mechanism for associative recognition is the formation of a compound memory cue that incorporates relational information between the two elements of the association. These a...