Table 2 Median and (IQR) of eye tracking metrics for neutral, positive and negative valence
All trials | Correct trials | Incorrect trials | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Neutral | Positive | Negative | p | Neutral | Positive | Negative | p | Neutral | Positive | Negative | p | |
Fixation count | 3.1 (1.0) | 3.3 (1.6) | 2.8 (1.4) | 0.8357 | 1.9 (0.8) | 1.8 (0.6) | 1.5 (1.0) | 0.3320 | 1.2 (1.0) | 2.0 (1.6) | 1.1 (1.0) | 0.0705 |
Fixation duration (ms) | 70.0 (45.0) | 94.3 (48.2) | 83.0 (36.2) | 0.7408 | 50.4 (18.3) | 47.2 (17.1) | 56.3 (22.7) | 0.9048 | 33.4 (13.2) | 40.4 (23.3) | 57.9 (21.8) | 0.0536 |
Saccade count | 27.4 (26.8) | 22.1 (14.1) | 27.1 (25.8) | 0.0092 | 26.9 (23.7) | 22.1 (11.6) | 23.9 (13.2) | 0.1319 | 46.3 (33.8) | 40.4 (25.5) | 42.6 (13.6) | 0.0183 |
Saccade duration (ms) | 357.6 (35.3) | 388.1 (107.7) | 352.7 (59.5) | 0.1225 | 358.6 (45.3) | 394.1 (94.3) | 352.9 (60.6) | 0.1225 | 345.2 (23.4) | 353.4 (44.0) | 323.8 (46.4) | 1.0000 |
Smooth pursuit count | 29.3 (27.2) | 24.5 (12.3) | 27.7 (26.0) | 0.0136 | 29.0 (25.1) | 23.7 (10.2) | 25.1 (14.8) | 0.1225 | 47.3 (32.7) | 38.8 (24.4) | 43.5 (16.1) | 0.0622 |
Smooth pursuit duration (ms) | 274.4 (33.1) | 303.2 (59.1) | 269.1 (43.4) | 0.2725 | 274.3 (36.8) | 308.8 (57.7) | 275.4 (53.6) | 0.3012 | 267.5 (29.6) | 263.4 (107.6) | 251.6 (35.7) | 0.6514 |
Trajectory length (px) | 273.3 (49.6) | 263.4 (58.1) | 265.8 (41.1) | 0.6703 | 255.5 (63.8) | 263.2 (56.7) | 259.3 (25.3) | 0.6703 | 372.8 (63.8) | 237.4 (183.3) | 303.3 (70.8) | 0.0183 |
Trajectory Std (px) | 162.4 (30.2) | 148.9 (29.0) | 149.7 (29.5) | 0.4066 | 152.6 (28.4) | 152.8 (26.8) | 149.5 (51.2) | 0.9048 | 204.6 (23.8) | 185.1 (79.6) | 142.6 (58.6) | 0.0498 |