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Effects of cochlear hearing loss on perceptual grouping cues in competing-vowel perception
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10.1121/1.2031975
/content/asa/journal/jasa/118/4/10.1121/1.2031975
http://aip.metastore.ingenta.com/content/asa/journal/jasa/118/4/10.1121/1.2031975

Figures

Image of FIG. 1.
FIG. 1.

Amplitude spectra of two competing vowels (left column: æ and right column: /i/) for each of the four experimental conditions (first row: normal condition; second row: swapped condition; third row: F2-5-same condition; fourth row: F1-same condition). In each panel (1–8), the values in parentheses correspond to the ’s of the first formant-frequency region and the higher formant-frequency region, respectively.

Image of FIG. 2.
FIG. 2.

Percentage of trials in which both vowels were correct is shown as a function of for each of the experimental conditions in the NH group. Error bars represent ± one standard error of the mean.

Image of FIG. 3.
FIG. 3.

Percentage of trials in which both vowels were correct is shown as a function of for each of the experimental conditions in the HI group. Error bars represent ± one standard error of the mean.

Image of FIG. 4.
FIG. 4.

Percentage of trials in which both vowels were correct is shown as a function of for each of the experimental conditions in individual listeners with hearing loss. In each panel the values in parentheses correspond to the listener’s average thresholds at 500, 1000, and and the age of the listener, respectively.

Tables

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TABLE I.

Following Culling and Darwin (1993), the availability of cues in the low and high formant-frequency regions, respectively, associated with an experimental condition. The presumed effect of condition on across-formant grouping is also presented. Note: The experimental labels are from the current study. The corresponding conditions in Culling and Darwin (1993) are labeled: normal; -swapped; same for F2-5; and same for F1, respectively.

Generic image for table
TABLE II.

Audiometric thresholds (in dB HL) for listeners with hearing loss. Note: Asterisks indicate test ear; NR indicates no response.

Generic image for table
TABLE III.

Formant frequencies (in Hz) for vowels. Note: Values in parentheses represent formant bandwidths (in Hz).

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TABLE IV.

Differences in fundamental frequency between the two constituent vowels.

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TABLE V.

Summary of repeated-measures ANOVA for arc-sine transformed percent-correct scores. Shown are the main effects.

Generic image for table
TABLE VI.

Summary of repeated-measures ANOVA for arc-sine transformed percent-correct scores. Shown are the within- and between-subject effects for each of the four conditions.

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/content/asa/journal/jasa/118/4/10.1121/1.2031975
2005-10-01
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Effects of cochlear hearing loss on perceptual grouping cues in competing-vowel perception
http://aip.metastore.ingenta.com/content/asa/journal/jasa/118/4/10.1121/1.2031975
10.1121/1.2031975
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