Categorization of Sounds

The authors conducted 4 experiments to test the decision-bound, prototype, and distribution theories for the categorization of sounds. They used as stimuli sounds varying in either resonance frequency or duration. They created different experimental conditions by varying the variance and overlap of...

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Bibliographic Details
Published in:Journal of experimental psychology. Human perception and performance 2006-06, Vol.32 (3), p.733-754
Main Authors: Smits, Roel, Sereno, Joan, Jongman, Allard
Format: Article
Language:English
Subjects:
Acoustics
Analysis of Variance
Audition
Auditory Discrimination
Auditory Perception
Auditory Stimulation
Auditory Stimuli
Biological and medical sciences
Classification
Decision Making
Discrimination Learning
Experimental Psychology
Frequencies
Fundamental and applied biological sciences. Psychology
Human
Humans
Logistic Models
Models, Psychological
Netherlands
Novelty (Stimulus Dimension)
Pattern Recognition, Physiological
Perception
Phonetics
Psychoacoustics
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Sound
Speech Perception
Stimulus Parameters
Theories
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Summary:The authors conducted 4 experiments to test the decision-bound, prototype, and distribution theories for the categorization of sounds. They used as stimuli sounds varying in either resonance frequency or duration. They created different experimental conditions by varying the variance and overlap of 2 stimulus distributions used in a training phase and varying the size of the stimulus continuum used in the subsequent test phase. When resonance frequency was the stimulus dimension, the pattern of categorization-function slopes was in accordance with the decision-bound theory. When duration was the stimulus dimension, however, the slope pattern gave partial support for the decision-bound and distribution theories. The authors introduce a new categorization model combining aspects of decision-bound and distribution theories that gives a superior account of the slope patterns across the 2 stimulus dimensions.
ISSN:0096-1523
1939-1277
DOI:10.1037/0096-1523.32.3.733