Table 2.
Mean number of available trials after processing and percentage of data discarded per session per participant.
| Number of trials collected | Percentage of trial discarded (%) | Number of available trials after artifact rejections | |||
|---|---|---|---|---|---|
| (SD, range) | (SD, range) | (SD, range) | |||
|
Older adult study
(N = 50) |
Oddball task | Target trials | 30 | 64.2 (26.5, 0–100) |
10.7 (7.9, 0–30) |
| Flanker task | Correct trialsa | 126.2 (4.8, 64–134) |
73.9 (21.8, 6.5–100) |
32.6 (27.4, 0–117) |
|
| Error trialsa | 6.7 (4.1, 1–24) |
61.9 (36.4, 0–100) |
2.5 (2.8, 0–16) |
||
|
Younger adult study (N = 30) |
Oddball Task | Target trials | 30 | 43 (23.4,0–100) |
17.1 (7, 0–30) |
| Flanker task | Correct trialsa | 117.8 (9.6, 85–136) |
59.3 (18.7, 4.7–100) |
47.5 (21.9, 0–104) |
|
| Error trialsa | 20.2 (13.3, 1–64) |
40 (24.7, 0–100) |
11.3 (8.2, 0–39) |
||
|
Wet EEG dataset [N = 40; Kappenman et al. (62)] |
Oddball task | Target trials | 40 | 23.69 (21.2, 0–87.5) |
30.5 (8.5, 5–40) |
| Flanker task | Correct trialsb | 352.1 (36.2, 182–398) |
4.5 (7.3, 0–34.9) |
337 (46.2, 151–390) |
|
| Error trialsb | 42 (22.4, 2–83) |
4.3 (7.2, 0–33.3) |
40.1 (21.4, 2–80) |
||
The number of trials passing quality control were computed at the Pz electrode for the Oddball task, and at the FCz electrode for the Flanker task. The wet EEG tasks lasted about 10 min. The gamified Oddball and Flanker lasted about 12 and 7 min, respectively.
a
150 trials were presented and could be answered correctly or incorrectly.
b
400 trials were presented and could be answered correctly or incorrectly.