Shift in stimulus range and the exponent of the power function for loudness
| العنوان: | Shift in stimulus range and the exponent of the power function for loudness |
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| المؤلفون: | Richard Ahlström, John C. Baird |
| المصدر: | Perception & Psychophysics. 46:603-607 |
| بيانات النشر: | Springer Science and Business Media LLC, 1989. |
| سنة النشر: | 1989 |
| مصطلحات موضوعية: | medicine.medical_specialty, Communication, business.industry, Loudness Perception, Auditory Threshold, Experimental and Cognitive Psychology, Audiology, Stimulus (physiology), Power law, Sensory Systems, Loudness, medicine, Exponent, Psychophysics, Humans, Attention, Power function, Psychology, business, General Psychology, Psychoacoustics |
| الوصف: | The exponent of the power function for loudness was tracked over the course of 60 trials with one stimulus range and compared to the exponent over the course of 60 subsequent trials with a different stimulus range. Three stimulus sets were used: (1) weak, a short range of relatively soft tones (45-55 dBA); (2) strong, a short range of relatively loud tones (64-74 dBA); and (3) complete, a longer range of soft to loud tones (40-90 dBA). All pairs of stimulus sets were tested, together with three control conditions in which no shift in range occurred. Ten subjects were run in each of the nine groups. For preshift trials, the mean exponent was lowest for the strong stimulus series, highest for the weak series, and at an intermediate value for the complete series. These differences were all significant. Following a shift in stimulus range, the weak series still yielded the highest exponent, but the exponents were not reliably different for the complete and strong series. Postshift exponents also depended significantly on the preshift range experienced by the subjects. These effects were not confined to the period immediately following the shift in range, but persisted for up to 60 trials. |
| تدمد: | 1532-5962 0031-5117 |
| DOI: | 10.3758/bf03208158 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::db84100939408924734eff15c9c3938f https://doi.org/10.3758/bf03208158 |
| Rights: | CLOSED |
| رقم الانضمام: | edsair.doi.dedup.....db84100939408924734eff15c9c3938f |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15325962 00315117 |
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| DOI: | 10.3758/bf03208158 |