Similarity Scaling and Cognitive Process Models

INTRODUCTION 25 DETERMINISTIC MULTIDIMENSIONAL SCALING APPROACHES ... . . .. ... ....... . 27 Universal Laws of Generalization and Similarity . . . . . . . . . . . . . . ........ . 27 Identification, Categorization, and Recognition 30 Same-Different Judgments and Reaction Time 37 Cognitive Processes and the Metric Axioms. . . . . ....... . . .. . . . . . . ...... . . . . . .. . . . . . ...... . . . 38 Summary....... . . . . . . . . . . . . . . . ....... . . . . .. . . ....... . . . . . . . .. ........ . . .. .. . . . . . ...... . . . 40 PROBABILISTIC MULTIDIMENSIONAL SCALING APPROACHES . .. . . . . . . . . .. .... . . 41 Probabilistic Scaling of Distance Judgments .. . .. ........ . . . . . ... ..... 41 General Recognition Theory . . . . . . 43 Multivariate Discrimination Methods ..... ... . ....... . . . . . . ......... . . 47 FUTURE DIRECTIONS 49