Table 2.
Correlations among pulse-rate discrimination difference limens and other non-speech and speech temporal processing measures. Spearman correlation ρ values are displayed for the following variables: difference limens (DLs) for discrimination of 100-, 200-, 300-, and 400-Hz pulse trains, gap detection thresholds (GAP DET), gap duration detection thresholds (GAP DUR), temporal interval discrimination thresholds for 100 and 600 ms (TEMPO 100 and TEMPO 600), and sentence recognition presented in 40% and 60% time compression ratio conditions (40% TC and 60% TC) and in 0.6-s reverberation time and 1.2-s reverberation time conditions (0.6-s REV and 1.2-s REV). Boldface font indicates values that are significant at an alpha level of 0.05 or better. *P < 0.05, **P < 0.01, ***P < 0.001
| DL 100 | DL 200 | DL 300 | DL 400 | GAP DET | GAP DUR | TEMPO 100 | TEMPO 600 | 40% TC | 60% TC | 0.6-s RV | 1.2-s RV | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pulse rate DLs (Near Generalization) | ||||||||||||
| DL 100 | ||||||||||||
| DL 200 | .671*** | |||||||||||
| DL 300 | .607*** | .592*** | ||||||||||
| DL 400 | .588*** | .616*** | .799*** | |||||||||
| Temporal Processing (Mid Generalization) | ||||||||||||
| GAP DET | .425*** | .433* | .522*** | .463*** | ||||||||
| GAP DUR | .196 | .137 | .233* | .231* | .313** | |||||||
| TEMPO 100 | .373** | .343** | .289* | .358** | .258* | .341** | ||||||
| TEMPO 600 | .274* | .456*** | .250* | .289* | .271* | .297* | .487*** | |||||
| Sentence Recognition (Far Generalization) | ||||||||||||
| 40% TC | -.331** | -.361** | -.587*** | -.509*** | -.458*** | -.214 | -.141 | -.201 | ||||
| 60% TC | -.392*** | -.411*** | -.729*** | -.611*** | -.433** | -.276* | -.163 | -.171 | .613*** | |||
| 0.6-s RV | -.363** | -.363** | -.610*** | -.532*** | -.298** | -.251* | -.100 | -.165 | .717*** | .662*** | ||
| 1.2-s RV | -.346** | -.433*** | -.581*** | -.496*** | -.267* | -.332 | -.174 | -.221 | .573*** | .681*** | .656*** | |