Development of a fast method for determining sensitivity to temporal fine structure.
Recent evidence suggests that sensitivity to the temporal fine structure (TFS) of sounds is adversely affected by cochlear hearing loss. This may partly explain the difficulties experienced by people with cochlear hearing loss in understanding speech when background sounds, especially fluctuating ba...
| Publicado en: | International Journal of Audiology Vol. 48; no. 4; pp. 161 - 172 |
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| Autores principales: | , |
| Formato: | equations & formulas research tracings Journal Article |
| Publicado: |
Taylor & Francis Ltd
Apr2009
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=105512466&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 105512466 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 14992027 JW2 jtl: International Journal of Audiology issn: 14992027 maglogo: Y pubinfo: dt: Apr2009 vid: 48 iid: 4 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 105512466 2010260829 10.1080/14992020802475235 NLM19085395 105512466 ppf: 161 ppct: 11 formats: fmt: @attributes: type: P tig: atl: Development of a fast method for determining sensitivity to temporal fine structure. aug: au: Moore BCJ Sek A affil: Department of Experimental Psychology, University of Cambridge, Downing Street, Cambridge, UK. bcjm@cam.ac.uk sug: subj: Auditory Perception Basilar Membrane Physiology Hearing Loss, Sensorineural Diagnosis Neuropsychological Tests Sensitivity and Specificity Evaluation Signal Transduction Acoustic Stimulation Analysis of Variance Audiometry, Pure-Tone Auditory Threshold Cues Data Analysis Software Descriptive Statistics Female Funding Source Hypothesis Information Resources Instrument Construction Instrument Validation Learning Male Noise Perceptual Masking Pitch Perception Reference Values Simulations Sound Spectrography Speech Discrimination Tests T-Tests Task Performance and Analysis Time Factors United Kingdom Waveforms World Wide Web Human Female Male ab: Recent evidence suggests that sensitivity to the temporal fine structure (TFS) of sounds is adversely affected by cochlear hearing loss. This may partly explain the difficulties experienced by people with cochlear hearing loss in understanding speech when background sounds, especially fluctuating backgrounds, are present. We describe a test for assessing sensitivity to TFS. The test can be run using any PC with a sound card. The test involves discrimination of a harmonic complex tone (H), with a fundamental frequency F0, from a tone in which all harmonics are shifted upwards by the same amount in Hertz, resulting in an inharmonic tone (I). The phases of the components are selected randomly for every stimulus. Both tones have an envelope repetition rate equal to F0, but the tones differ in their TFS. To prevent discrimination based on spectral cues, all tones are passed through a fixed bandpass filter, usually centred at 11F0. A background noise is used to mask combination tones. The results show that, for normal-hearing subjects, learning effects are small, and the effect of the level of testing is also small. The test provides a simple, quick, and robust way to measure sensitivity to TFS. pubtype: Academic Journal doctype: equations & formulas research tracings Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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