1887
banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
Time course of speech changes in response to unanticipated short-term changes in hearing state
Rent:
Rent this article for
USD
10.1121/1.2642349
/content/asa/journal/jasa/121/4/10.1121/1.2642349
http://aip.metastore.ingenta.com/content/asa/journal/jasa/121/4/10.1121/1.2642349

Figures

Image of FIG. 1.
FIG. 1.

Schematic of the experimental procedure. The squares represent individual two-word utterances (e.g., “Dun shed”), presented as a function of time. The vertical lines represent the switching of hearing state at postvoicing onset in some utterances. Unfilled squares represent foils that were included to make the timing of the switches unpredictable, but were not analyzed; the number of foils varied from one to seven. Filled squares represent the utterances that were entered into the analysis. Results from the three utterances immediately prior to each switch (hatched squares) were averaged to obtain a pre-switch base line. For the three trials following a switch (solid black squares numbered from one to three) results were analyzed separately for each of the three postswitch utterances.

Image of FIG. 2.
FIG. 2.

Schematic illustrating how graphs of results were generated. The example shown here is for the /ɑ/ in Don occurring as the second utterance after a switch in hearing status from prosthetic hearing blocked to restored. As in Fig. 1 , each square represents an individual two-word utterance (e.g., Don sad). Solid filled boxes represent utterances of Don (followed by either sad or shad). Only the black (not the gray) utterances contribute to the data point shown in the graph at the right side of the figure. Hatched squares represent utterances of Dun followed by said or shed. In order to generate the single data point shown in the graph at the right, values were averaged across all 15 utterances of Don occurring during the second utterance after the switch in hearing status from hearing blocked to hearing restored. The vertical ellipsis indicates that not all 15 switches in hearing state are pictured here; the utterances shown would have been scattered in time throughout the experimental session.

Image of FIG. 3.
FIG. 3.

The effects on vowel contrast distance of blocking (top) and restoring (bottom) prosthetic hearing, as a function of utterance relative to a switch in hearing state, for vowels in the first word (left) and vowels in the second word (right). The vertical dashed lines represent the relative timing of the switches (which actually occurred at the beginning of the vowel in the first of the two words in an utterance; the line has been shifted for clarity). The symbols immediately to the left of these lines represent the average over three utterances immediately prior to the switch. Vertical pairs of dotted lines represent the variable intervals in which foils were presented.

Image of FIG. 4.
FIG. 4.

The effects on sibilant contrast distance of blocking (upper panels) and restoring (lower) prosthetic hearing, as a function of utterance relative to a switch in hearing state. For details, see the caption for Fig. 2 .

Image of FIG. 5.
FIG. 5.

The effects on vowel duration of blocking (left panel) and restoring (right panel) prosthetic hearing, as a function of utterance relative to a switch in hearing state. Vowels in the first word are represented by round symbols; vowels in the second word are represented by square symbols. Within an utterance, the vowel /ɑ/ was always followed by the vowel /æ/; the symbols for these vowels are both filled; the vowel /ʌ/ was always followed by the vowel /ε/; the symbols for these vowels are both unfilled. For further details, see caption for Fig. 2 .

Image of FIG. 6.
FIG. 6.

The effects on vowel SPL of blocking (left panel) and restoring (right panel) prosthetic hearing, as a function of utterance relative to a switch in hearing state. For further details, see captions for Figs. 2 and 5 .

Image of FIG. 7.
FIG. 7.

The effects on vowel of blocking (left panel) and restoring (right panel) prosthetic hearing, as a function of utterance relative to a switch in hearing state. For further details, see captions for Figs. 2 and 5 .

Tables

Generic image for table
TABLE I.

Subject Characteristics. Male speakers are indicated by M, female, F. All but one of the subjects (FK) have participated in other studies in this laboratory. Subject identifiers are consistent across publications to facilitate comparisons across studies. (L designated left ear, R right.)

Generic image for table
TABLE II.

Vowel contrast distances when prosthetic hearing is blocked and restored for the contrasts/ɑ-ʌ/ and /æ-ε/ All contrasts are significant at except where (not significant) is noted.

Generic image for table
TABLE III.

Sibilant contrast distances when prosthetic hearing is blocked and restored in the vowel environments /æ/ and /ε/. All contrasts are nonsignificant at .

Generic image for table
TABLE IV.

Changes in vowel duration when prosthetic hearing is blocked and restored. All contrasts are significant at .

Generic image for table
TABLE V.

Changes in vowel SPL when prosthetic hearing is blocked and restored. All contrasts are significant at except where noted; .

Generic image for table
TABLE VI.

Changes in vowel fundamental frequency when prosthetic hearing is blocked and restored. All contrasts are significant at except where nonsignificant (ns) is noted. .

Loading

Article metrics loading...

/content/asa/journal/jasa/121/4/10.1121/1.2642349
2007-04-01
2014-04-18
Loading

Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Time course of speech changes in response to unanticipated short-term changes in hearing state
http://aip.metastore.ingenta.com/content/asa/journal/jasa/121/4/10.1121/1.2642349
10.1121/1.2642349
SEARCH_EXPAND_ITEM