Table 2.
Group averaged binary classification accuracy along the task-relevant dimension
| Left hemisphere |
Bilateral |
Right hemisphere |
|||||||
|---|---|---|---|---|---|---|---|---|---|
| STC | Voice | STC − Voice | STC | Voice | STC − Voice | STC | Voice | STC − Voice | |
| Speaker task | |||||||||
| Boy–girl | 0.53 (0.02) | 0.51 (0.01) | 0.54* (0.02) | 0.52 (0.01) | 0.50 (0.02) | 0.51 (0.01) | 0.50 (0.02) | 0.48 (0.01) | 0.49 (0.02) |
| Boy–male | 0.58*** (0.03) | 0.56* (0.03) | 0.55 (0.03) | 0.61*** (0.02) | 0.57* (0.03) | 0.57* (0.03) | 0.60** (0.03) | 0.59*** (0.02) | 0.58*** (0.02) |
| Girl–male | 0.62*** (0.02) | 0.58*** (0.02) | 0.59** (0.03) | 0.64*** (0.04) | 0.63*** (0.03) | 0.59* (0.03) | 0.62** (0.04) | 0.61*** (0.03) | 0.57* (0.03) |
| Vowel task | |||||||||
| /a/–/i/ | 0.52 (0.02) | 0.50 (0.02) | 0.53 (0.03) | 0.53 (0.02) | 0.50 (0.02) | ||||
| /a/–/u/ | 0.56* (0.03) | 0.52 (0.03) | 0.59*** (0.02) | 0.57* (0.03) | 0.57* (0.02) | ||||
| /i/–/u/ | 0.56** (0.02) | 0.54** (0.01) | 0.52 (0.02) | 0.50 (0.02) | 0.53 (0.02) | ||||
Mean (SE) classification accuracy for binary speaker/vowel comparisons in the speaker/vowel task. Accuracy is shown for each of the ROIs showing significant three-way classification (Figs. 5A, 6). STC: sound responsive superior temporal cortex, Voice: voice localizer.
*p < 0.05,
**p < 0.01,
***p < 0.005.