Five subjects were required to judge the loudness of pure tones that varied in intensity and duration (Experiment 1), in intensity and frequency (Experiment 2), or in duration and frequency (Experiment 3). Results of all three experiments were consistent with the respective models of sensory integration expected to underlie the various judgmental tasks (multiplicative for the first experiment, unidimensional for the latter two). Despite the use of common stimulus values across experiments and instructions to judge solely loudness, different loudness scales emerged. This outcome supports a task dependent, multirepresentative scheme for loudness.
Bibliographical noteFunding Information:
We wish to thank Lawrence Marks & Robert Melara for thoughtful discussions and helpful comments on this paper. Preparation of this paper was supported by National Institute of Health Grant NS 21326. Request reprir ts from Daniel Algomi John B. Pierce Foundation Laboratory, 290 Congress Avenue, New Haven, CT 06519.
- Loudness scales