Table 3.
Intra-subject reliability statistics for all tasks and contrasts (functional ROIs and control region).
| Task | Contrast | Reliability | LAmyg ICC (95% CI) | RAmyg ICC (95% CI) | sgACC ICC (95% CI) | FFA ICC (95% CI) |
|---|---|---|---|---|---|---|
| EI | Faces>fixation | Between-day (both runs) | 0.033 (−1.122 to 0.559) | −0.382 (−2.032 to 0.370) | −0.834 (−3.025 to 0.164) | 0.547 (−0.470 to 0.804)* |
| Between-day (run 1) | 0.304 (−0.527 to 0.683) | 0.211 (−0.731 to 0.641) | −0.753 (−2.847 to 0.201) | 0.456 (−0.258 to 0.765)* | ||
| Between-day (run 2) | 0.365 (−0.393 to 0.711) | −0.124 (−1.466 to 0.488) | −0.793 (−2.935 to 0.183) | 0.180 (−0.896 to 0.645) | ||
| Within-day 1 (run 1/run 2) | −0.201 (−1.635 to 0.453) | −0.067 (−1.341 to 0.514) | 0.025 (−1.248 to 0.533) | 0.466 (−0.234 to 0.769)** | ||
| Within-day 2 (run 1/run2) | 0.172 (−0.818 to 0.622) | 0.450 (−0.206 to 0.750)* | −0.193 (−1.618 to 0.456) | 0.292 (−0.636 to 0.694) | ||
| EM | Faces>fixation | Between-day (both runs) | 0.300 (−0.492 to 0.671) | −0.502 (−2.200 to 0.295) | −0.126 (−1.399 to 0.471) | 0.830 (0.607 to 0.926)** |
| Between-day (run 1) | 0.121 (−0.872 to 0.587) | 0.176 (−0.754 to 0.613) | 0.124 (−1.394 to 0.472) | 0.856 (0.666 to 0.938)** | ||
| Between-day (run 2) | −0.478 (−2.149 to 0.306) | −0.283 (−1.733 to 0.397) | 0.302 (−0.486 to 0.672) | 0.765 (0.458–0.899)** | ||
| Within-day 1 (run 1/run 2) | −0.240 (−1.641 to 0.418) | 0.057 (−1.009 to 0.557) | 0.346 (−0.393 to 0.693) | 0.897 (0.763–0.956)** | ||
| Within-day 2 (run 1/run2) | 0.303 (−0.427 to 0.685) | 0.321 (−0.446 to 0.681) | 0.209 (−0.684 to 0.629) | 0.903 (0.775–0.958)** | ||
| GC | Faces>fixation | Between-day (both runs) | 0.418 (−0.278 to 0.735)* | 0.231 (−0.687 to 0.650) | 0.460 (−0.185 to 0.754)* | 0.896 (0.759–0.955)** |
| Between-day (run 1) | 0.213 (−0.727 to 0.641) | −0.328 (−1.914 to 0.395) | 0.473 (−0.156 to 0.760)* | 0.854 (0.662–0.937)** | ||
| Between-day (run 2) | 0.574 (0.066 to −0.806)* | 0.552 (0.018–0.796)* | 0.041 (−1.104 to 0.563) | 0.902 (0.774–0.958)** | ||
| Within-day 1 (run 1/run 2) | 0.234 (−0.681 to 0.651) | −1.190 (−3.806 to 0.002) | 0.213 (−0.727 to 0.641) | 0.855 (0.664–0.937)** | ||
| Within-day 2 (run 1/run2) | 0.671 (0.278 to 0.850)* | 0.770 (0.495–0.895)* | −0.013 (−1.222 to 0.538) | 0.948 (0.880–0.977)** |
For each functionally-defined region of interest as well as our control region (the right fusiform face area, FFA, defined using a 4 mm sphere around coordinates from a previous publication (McKeeff and Tong, 2007)), the within-subject reliability of between-day and within-day activation of each task. Between-day reliability is reported averaging across both runs, and for each run separately. Within-day reliability is reported for day 1 and day 2 separately. A negative ICC is interpreted as indicating a reliability of zero (Bartko, 1976). GC=gender classification; EI=emotion identification; EM=emotion matching; LAmyg=left amygdala; RAmyg=right amygdala; sgACC=subgenual anterior cingulate cortex; ICC=inter-class correlation coefficient; CI=confidence interval.
ICC>0.4.
ICC>0.75.