Oberfeld, Daniel and Plank, Tina (2011) The temporal weighting of loudness: effects of the level profile. ATTENTION PERCEPTION & PSYCHOPHYSICS, 73 (1). pp. 189-208. ISSN 1943-3921,
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In four experiments, we studied the influence of the level profile of time-varying sounds on temporal perceptual weights for loudness. The sounds consisted of contiguous wideband noise segments on which independent random-level perturbations were imposed. Experiment 1 showed that in sounds with a flat level profile, the first segment receives the highest weight (primacy effect). If, however, a gradual increase in level (fade-in) was imposed on the first few segments, the temporal weights showed a delayed primacy effect: The first unattenuated segment received the highest weight, while the fade-in segments were virtually ignored. This pattern argues against a capture of attention to the onset as the origin of the primacy effect. Experiment 2 demonstrated that listeners adjust their temporal weights to the level profile on a trial-by-trial basis. Experiment 3 ruled out potentially inferior intensity resolution at lower levels as the cause of the delayed primacy effect. Experiment 4 showed that the weighting patterns cannot be explained by perceptual segmentation of the sounds into a variable and a stable part. The results are interpreted in terms of memory and attention processes. We demonstrate that the prediction of loudness can be improved significantly by allowing for nonuniform temporal weights.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | AUDITORY-NERVE FIBERS; TIME-VARYING SOUNDS; SHORT-TERM-MEMORY; MASKED INTENSITY DISCRIMINATION; MAXIMUM-LIKELIHOOD-ESTIMATION; REPEATED-MEASURES DESIGNS; OF-FIT TESTS; ROC CURVES; LOGISTIC-REGRESSION; PERCEPTUAL WEIGHTS; Dynamic loudness; Time-varying sounds; Intensity discrimination; Temporal perceptual weights; Perceptual weight analysis; Molecular psychophysics; Loudness model |
| Subjects: | 100 Philosophy & psychology > 150 Psychology |
| Divisions: | Human Sciences > Institut für Psychologie > Lehrstuhl für Psychologie I (Allgemeine Psychologie I und Methodenlehre) - Prof. Dr. Mark W. Greenlee |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 29 Jun 2020 12:11 |
| Last Modified: | 29 Jun 2020 12:11 |
| URI: | https://pred.uni-regensburg.de/id/eprint/21489 |
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