Table 3.
Summary Mixed linear effects models examining cognitive fatigue separately in the alerting, orienting and executive attention networks.
| Beta | t | 95%CI | p | |
|---|---|---|---|---|
| Alerting | ||||
| Time: 1–2 (RT decline) | 9.38 | 1.30 | −4.80 – 23.56 | 0.194 |
| Time: 1–3 (RT decline) | 9.17 | 1.27 | −4.98 – 23.33 | 0.203 |
| Time: 1–2 (RT accelerate) | 16.47 | 1.86 | −0.86 – 33.81 | 0.063 |
| Time: 1–3 (RT accelerate) | 15.37 | 1.74 | −1.93 – 32.69 | 0.082 |
| RT group | −1.70 | −0.22 | −16.76 – 13.35 | 0.824 |
| Time: 1–2 × RT group | 7.09 | 0.62 | −15.30 – 29.49 | 0.534 |
| Time: 1–3 × RT group | 6.20 | 0.54 | −16.16 – 28.56 | 0.586 |
| Orienting | ||||
| Time: 1–2 (RT decline) | 12.99 | 1.84 | −0.85 – 26.83 | 0.066 |
| Time: 1–3 (RT decline) | 24.98 | 3.47 | 10.87 – 39.10 | 0.001 |
| Time: 1–2 (RT accelerate) | 10.31 | 1.19 | −6.61 – 27.23 | 0.230 |
| Time: 1–3 (RT accelerate) | 20.66 | 2.35 | 3.40 – 37.92 | 0.019 |
| RT group | 3.02 | 0.40 | −11.64 – 17.70 | 0.685 |
| Time: 1–2 × RT group | −2.67 | −0.24 | −24.54 – 19.18 | 0.810 |
| Time: 1–3 × RT group | −4.32 | −0.38 | −26.62 – 17.97 | 0.703 |
| Executive | ||||
| Time: 1–2 (RT decline) | 12.33 | 1.52 | −3.60 – 28.27 | 0.129 |
| Time: 1–3 (RT decline) | 18.41 | 2.33 | 2.87 – 33.94 | 0.020 |
| Time: 1–2 (RT accelerate) | 5.85 | 0.59 | −13.61 – 25.35 | 0.554 |
| Time: 1–3 (RT accelerate) | −9.06 | −0.93 | −28.06 – 9.92 | 0.348 |
| RT group | 3.13 | 0.35 | −14.28 – 20.55 | 0.723 |
| Time: 1–2 × RT group | −6.47 | −0.50 | −31.64 – 18.70 | 0.614 |
| Time: 1–3 × RT group | −27.48 | −2.20 | −52.02 - −2.94 | 0.028 |
Time: 1–2 RT decline denotes time effect on attention network performance between blocks 1 and 2 for individuals whose RT declined over the course of the ANT; Time: 1–3 RT decline denotes time effect on attention network performance between blocks 1 and 3 for individuals whose RT declined over the course of the ANT; Time: 1–2 RT accelerate denotes time effect on attention network performance between blocks 1 and 2 for individuals whose RT declined over the course of the ANT; Time: 1–3 RT accelerate denotes time effect on attention network performance between blocks 1 and 3 for individuals whose RT declined over the course of the ANT; RT group denotes a two level group separating individuals whose average RT across all ANT trial types declined or accelerated between blocks 1 and 3 using 0 as the empirical cut score.
All mixed linear effects models controlled for RT group status, age, education, gender, ethnicity, medical illness, and GDS scores.