Multiple Looks in Speech Sound Discrimination in Adults.
N. F. Viemeister and G. H. Wakefield's (1991) multiple looks hypothesis is a theoretical approach from the psychoacoustic literature that has promise for bridging the gap between results from speech perception research and results from psychoacoustic research. This hypothesis accounts for sensory de...
| Publicado en: | Journal of Speech, Language & Hearing Research Vol. 48; no. 4; pp. 922 - 944 |
|---|---|
| Autores principales: | , |
| Formato: | Artículo |
| Publicado: |
American Speech-Language-Hearing Association
August 2005
|
| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=507817964&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 507817964 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 10924388 1SM jtl: Journal of Speech, Language & Hearing Research issn: 10924388 maglogo: N pubinfo: dt: August 2005 vid: 48 iid: 4 pid: 42 pub: American Speech-Language-Hearing Association artinfo: ui: 507817964 10.1044/1092-4388(2005/064) ppf: 922 ppct: 22 formats: fmt: – @attributes: type: T – @attributes: type: P size: 4.6MB tig: atl: Multiple Looks in Speech Sound Discrimination in Adults. aug: au: Holt, Rachel Frush Carney, Arlene Earley su: Audiometry Speech perception Sound Speech sug: subj: Audiometry Speech perception Sound Speech ab: N. F. Viemeister and G. H. Wakefield's (1991) multiple looks hypothesis is a theoretical approach from the psychoacoustic literature that has promise for bridging the gap between results from speech perception research and results from psychoacoustic research. This hypothesis accounts for sensory detection data and predicts that if the “looks” at a stimulus are independent and information is combined optimally, sensitivity should increase for 2 pulses relative to 1 pulse. Specifically, d' (a bias-free measure of sensitivity) for 2 pulses should be larger than a” for 1 pulse. One speech discrimination paradigm that presents stimuli with multiple presentations is the change/no-change procedure. On a change trial, the standard and comparison stimuli differ; on a no-change trial, they are the same. Normal-hearing adults were tested using the change/no-change procedure with 3 consonant-vowel minimal pairs in combinations of 1, 2, and 4 repetitions of standard and comparison stimuli at various signal-to-noise ratios. If multiple looks extend to this procedure, performance should increase with higher repetition numbers. Performance increased with more presentations of the speech contrasts tested. The multiple looks hypothesis predicted performance better at low repetition numbers when performance was near d' values of 1.0 than at higher repetition numbers and higher performance levels. Reprinted by permission of the publisher. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
|---|