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Transformation and alignment in similarity

Hodgetts, Carl J., Hahn, Ulrike and Chater, Nick 2009. Transformation and alignment in similarity. Cognition 113 (1) , pp. 62-79. 10.1016/j.cognition.2009.07.010

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This paper contrasts two structural accounts of psychological similarity: structural alignment (SA) and Representational Distortion (RD). SA proposes that similarity is determined by how readily the structures of two objects can be brought into alignment; RD measures similarity by the complexity of the transformation that “distorts” one representation into the other. We assess RD by defining a simple coding scheme of psychological transformations for the experimental materials. In two experiments, this “concrete” version of RD provides compelling fits of the data and compares favourably with SA. Finally, stepping back from particular models, we argue that perceptual theory suggests that transformations and alignment processes should generally be viewed as complementary, in contrast to the current distinction in the literature.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Psychology
Subjects: B Philosophy. Psychology. Religion > BC Logic
B Philosophy. Psychology. Religion > BF Psychology
Uncontrolled Keywords: Similarity; Transformation; Structural alignment; Mapping; Representations; Feature binding
Publisher: Elsevier
ISSN: 0010-0277
Last Modified: 04 Jun 2017 04:00

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