A notched-noise precursor affects both diotic and dichotic notched-noise masking
The present study investigates how diotic and dichotic masked thresholds, in a notched-noise masking paradigm, are affected by activation of the Medial OlivoCochlear (MOC) reflex. Thresholds were obtained for a 500-Hz pure tone diotic or a dichotic signal, S (S0 or Sπ respectively), in the presence...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2021-01-01
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| Series: | Acta Acustica |
| Subjects: | |
| Online Access: | https://acta-acustica.edpsciences.org/articles/aacus/full_html/2021/01/aacus200081/aacus200081.html |
| _version_ | 1827838751253987328 |
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| author | Dymel Felix Kordus Monika Yasin Ifat Verhey Jesko L. |
| author_facet | Dymel Felix Kordus Monika Yasin Ifat Verhey Jesko L. |
| author_sort | Dymel Felix |
| collection | DOAJ |
| description | The present study investigates how diotic and dichotic masked thresholds, in a notched-noise masking paradigm, are affected by activation of the Medial OlivoCochlear (MOC) reflex. Thresholds were obtained for a 500-Hz pure tone diotic or a dichotic signal, S (S0 or Sπ respectively), in the presence of a simultaneous or forward diotic masker (bandpass noise with no notch or a 400-Hz notch). A diotic precursor sound (bandpass noise with a 400- or 800-Hz notch) was presented prior to the signal and masker to activate the MOC reflex. For simultaneous- and forward-masking conditions, the decrease in masked thresholds as a notch was introduced in the masker was larger for the diotic than for the dichotic condition. This resulted in a reduced binaural masking level difference (BMLD) for the masker with a notch. The precursor augmented these two effects. The results indicate that the effect of the precursor, eliciting the MOC reflex, is less pronounced when binaural cues are processed. |
| first_indexed | 2024-03-12T07:10:46Z |
| format | Article |
| id | doaj.art-0566e7c0c7fd44809d63104e2cd209cf |
| institution | Directory Open Access Journal |
| issn | 2681-4617 |
| language | English |
| last_indexed | 2024-03-12T07:10:46Z |
| publishDate | 2021-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | Acta Acustica |
| spelling | doaj.art-0566e7c0c7fd44809d63104e2cd209cf2023-09-02T23:05:05ZengEDP SciencesActa Acustica2681-46172021-01-0154310.1051/aacus/2021035aacus200081A notched-noise precursor affects both diotic and dichotic notched-noise maskingDymel Felix0Kordus Monika1Yasin Ifat2Verhey Jesko L.3https://orcid.org/0000-0002-2742-9187Department of Experimental Audiology, Otto von Guericke UniversityDepartment of Experimental Audiology, Otto von Guericke UniversityDepartment of Computer Science, University College LondonDepartment of Experimental Audiology, Otto von Guericke UniversityThe present study investigates how diotic and dichotic masked thresholds, in a notched-noise masking paradigm, are affected by activation of the Medial OlivoCochlear (MOC) reflex. Thresholds were obtained for a 500-Hz pure tone diotic or a dichotic signal, S (S0 or Sπ respectively), in the presence of a simultaneous or forward diotic masker (bandpass noise with no notch or a 400-Hz notch). A diotic precursor sound (bandpass noise with a 400- or 800-Hz notch) was presented prior to the signal and masker to activate the MOC reflex. For simultaneous- and forward-masking conditions, the decrease in masked thresholds as a notch was introduced in the masker was larger for the diotic than for the dichotic condition. This resulted in a reduced binaural masking level difference (BMLD) for the masker with a notch. The precursor augmented these two effects. The results indicate that the effect of the precursor, eliciting the MOC reflex, is less pronounced when binaural cues are processed.https://acta-acustica.edpsciences.org/articles/aacus/full_html/2021/01/aacus200081/aacus200081.htmlbinauralmaskingsuppressionauditory frequency selectivity |
| spellingShingle | Dymel Felix Kordus Monika Yasin Ifat Verhey Jesko L. A notched-noise precursor affects both diotic and dichotic notched-noise masking Acta Acustica binaural masking suppression auditory frequency selectivity |
| title | A notched-noise precursor affects both diotic and dichotic notched-noise masking |
| title_full | A notched-noise precursor affects both diotic and dichotic notched-noise masking |
| title_fullStr | A notched-noise precursor affects both diotic and dichotic notched-noise masking |
| title_full_unstemmed | A notched-noise precursor affects both diotic and dichotic notched-noise masking |
| title_short | A notched-noise precursor affects both diotic and dichotic notched-noise masking |
| title_sort | notched noise precursor affects both diotic and dichotic notched noise masking |
| topic | binaural masking suppression auditory frequency selectivity |
| url | https://acta-acustica.edpsciences.org/articles/aacus/full_html/2021/01/aacus200081/aacus200081.html |
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