Table 2.
Results of the laterality index calculations (using the LI toolbox in SPM; Wilke and Schmithorst, 2006) for main effects of Gaze Direction and Auditory Clarity, and for the directional contrasts of 3 Channels>2 Channels and Direct>(Averted and Downward). All weighted means were significantly left lateralized (i.e. exceeding the conventional LI threshold of 0.2; Seghier et al., 2008).
| Model | Contrast | Trimmed Mean | Min | Max | Weighted Mean |
|---|---|---|---|---|---|
| 3×2 within-subjects ANOVA | Main Effect of Gaze Direction | 0.4 | 0.18 | 0.65 | 0.62 |
| Main Effect of Auditory Clarity | 0.44 | 0.29 | 0.62 | 0.5 | |
| 3 Channels > 2 Channels | 0.25 | 0.03 | 0.52 | 0.42 | |
| Direct > (Averted & Downward) | 0.24 | 0.08 | 0.58 | 0.49 | |
| One-way within-subjects ANOVA | Direct > (Averted & Downward) | 0.25 | 0.2 | 0.38 | 0.44 |
| (2 Channels) | |||||
| One-way within-subjects ANOVA | Direct > (Averted & Downward) | 0.05 | −0.01 | 0.09 | −0.09 |
| (3 Channels) | |||||