Table 3.
Significant main effects on current density and their interactions (in Italics) of stimulus–response combinations (StimRes), brain area (BA), hemisphere (Hem: Left vs. right cerebral hemisphere) and visual articulation clarity (VisArt), in response to first utterance in the pair during 4 time periods. Numbers in Italics (e.g. 42) designate the brain areas involved in the interaction by the Brodmann area roughly corresponding to them. Rt stands for Right, Lt—for Lt, Other represent all other conditions or brain areas, Cong is short for congruent auditory‐visual articulation, Incong—for auditory‐visual incongruence, McG+ stands for effective McGurk effect and McG− represents trials in which the McGurk effect did not affect perception. Stil indicates no articulation, Blur stands for blurred mouth and Ful represents full articulation in the visual display
| P1c (30–70 msec) | N1c (100–140 msec) | P2c (170–200 msec) | N2c(200–260 msec) | |
|---|---|---|---|---|
| Stimulus–response | McG− > Other F (6,48) = 6.89; P < 0.000001 | McG− > Other F(6,48) = 10.59; P < 0.0000001 | McG+ > Other F(6,108) = 21.8; P < 0.0000001 | McG+, − > Other F(6,108) = 21.35; P < 0.000001 |
| Brain area | 42,7,21 > Other F (13,104) = 9.68; P < 0.0000001 | 42,7,21,19,22 > Other F(13,104) = 27.00; P < 0.0000001 | 42,40,7,21,19,22 > Other F(13,234) = 34.19; P < 0.0000001 | 42,7,21,19,22 > Other F(13,234) = 40.03; P < 0.000001 |
| Hemisphere | Lt > Rt F(1,8) = 5.72; P < 0.02 | Lt > Rt F(1,18) = 24.98; P < 0.000001 | Lt > Rt 42,40,22,21 F(1,18) = 18.22; P < 0.00003 | |
| StimResXBA | Seea F (78,624) = 1.83; P < 0.00003 | |||
| StimResXHem | Lt > Rt (Cong/gi/) F(6,48) = 3.2; P < 0.0005 | Lt > Rt McG+ F(6,108) = 2.51; P < 0.02 | ||
| BAXHem | Lt > Rt 21,22,40,42 F(13,104) = 1.90; P < 0.03 | Lt > Rt; but Rt > Lt19,7 F(13,104) = 5.66; P < 0.0001 | Lt > Rt 40,42,22,21; but Rt > Lt19 F(13,234) = 2.28; P < 0.006 | |
| Visual articulation | Stil/gi/,McG− > Other F(8,120) = 13.00; P < 0.00001 | Blur McG− > Other F(8,120) = 9.42; P < 0.00001 | ||
| VisArtXHem | Lt > Rt 21,22,40,42 F(13,195) = 4.72; P < 0.000001 | |||
| VisArtXBA | 22 to Stil/gi/ > Other F(104,1560) = 3.41; P < 0.0000001 |
7 > Other to McG‐; 42,45 > Other to Cong/gi/.