This article reviews the status of similarity as an explanatory construct with a focus on
similarity judgments. For similarity to be a useful construct, one must be able to specify the …

The relation between similarity and categorization has recently come under scrutiny from
several sectors. The issue provides an important inroad to questions about the contributions …

An alternative analysis of geometric models of proximity data, based on a feature-matching
model, leads to the coincidence hypothesis that the dissimilarity between objects that differ …

A new theory of similarity, rooted in the detection and recognition literatures, is developed.
The general recognition theory assumes that the perceptual effect of a stimulus is random …

The question of “What makes things seem similar?” is important both for the pivotal role of
similarity in theories of cognition and for an intrinsic interest in how people make …

In 1959, Oliver Selfridge proposed a model of letter perception, the Pandemonium model, in
which the central hypothesis was that letters are identified via their component features …

The mental representations of perceptual and cognitive stimuli vary on many dimensions. In
addition, because of quantal fluctuations in the stimulus, spontaneous neural activity, and …

The Psychology of Reading provides a fair and coherent overall picture of how reading is
done and how it is best taught. It aims to relate reading to writing systems, analyze the …

By adding the same component (eg, glasses) to two stimuli (eg, schematic faces) or to one
stimulus only, it is possible to assess the impact of that component as a common or as a …

In order to distinguish between the effects of low-level sensory mechanisms and those of
higher level factors on eye-movement control processes, a simple letter search task was …