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dc.contributor.authorWallaert, Nicolasen
dc.contributor.authorMoore, Brianen
dc.contributor.authorLorenzi, Christianen
dc.date.accessioned2018-06-06T13:42:50Z
dc.date.available2018-06-06T13:42:50Z
dc.identifier.issn1520-8524
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/276667
dc.description.abstractFrequency modulation (FM) and amplitude modulation (AM) detection thresholds were measured at 40 dB sensation level for young (22-28 yrs) and older (44-66 yrs) listeners with normal audiograms for a carrier frequency of 500 Hz and modulation rates of 2 and 20 Hz. The number of modulation cycles, N, varied between 2 and 9. For FM detection, uninformative AM at the same rate as the FM was superimposed to disrupt excitation-pattern cues. For both groups, AM and FM detection thresholds were lower for the 2-Hz than for the 20-Hz rate, and AM and FM detection thresholds decreased with increasing N. Thresholds were higher for older than for younger listeners, especially for FM detection at 2 Hz, possibly reflecting the effect of age on the use of temporal-fine-structure cues for 2-Hz FM detection. The effect of increasing N was similar across groups for both AM and FM. However, at 20 Hz, older listeners showed a greater effect of increasing N than younger listeners for both AM and FM. The results suggest that ageing reduces sensitivity to both excitation-pattern and temporal-fine-structure cues for modulation detection, but more so for the latter, while sparing temporal integration of these cues at low modulation rates.
dc.description.sponsorshipN.W. was supported by a grant from Neurelec Oticon Medical. C.L. was supported by two grants from ANR (HEARFIN and HEART projects). This work was also supported by ANR-11-0001-02 PSL* and ANR-10-LABX-0087.
dc.languageengen
dc.publisherAcoustical Society of America
dc.subjectspeechen
dc.subjectinformation integrationen
dc.subjectauditory systemen
dc.subjectaudiometryen
dc.subjectfrequency modulationen
dc.subjectdata analysisen
dc.subjectacoustic sensingen
dc.subjectinformation processingen
dc.titleComparing the effects of age on amplitude modulation and frequency modulation detection.en
dc.typeArticle
prism.number3088en
prism.publicationNameJournal of the Acoustical Society of Americaen
prism.volume139en
dc.identifier.doi10.17863/CAM.14699
dcterms.dateAccepted2016-05-10en
rioxxterms.versionofrecord10.1121/1.4953019en
rioxxterms.versionVoR*
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2016-05-10en
dc.contributor.orcidMoore, Brian [0000-0001-7071-0671]
dc.identifier.eissn1520-8524
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idEuropean Commission (39297)
pubs.funder-project-idEPSRC (EP/M026957/1)
cam.issuedOnline2016-06-08en


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