## 3 Experimental Results
### Event-Related Potential (ERP) Analysis  
The descriptive statistics for P200 mean amplitude and peak latency are shown in Table 4. A 2(fatigued, non-fatigued) \(\times\) 3(simple task interruption, complex task interruption, pause interruption) repeated-measures ANOVA revealed that fatigue state significantly \begin{table}
\begin{tabular}{c c c c c} \hline
**Anova** & \multicolumn{2}{c}{**Reaction Time (RT)**} & \multicolumn{2}{c}{**Accuracy (ACC)**} \\ \hline Effect & \(F\) & \(p\) & \(F\) & \(p\) \\ Fatigue State & 11.646 & \textless{}0.01 \({}^{*}\) & 28.385 & \textless{}0.01 \({}^{*}\) \\ Interruption Type & 3.944 & 0.059 & 0.009 & 0.926 \\ Trial Type & 5.292 & 0.023 \({}^{*}\) & 67.743 & \textless{}0.01 \({}^{*}\) \\ Fatigue State \(\times\) Intervention Type & 5.389 & 0.002 \({}^{*}\) & 13.939 & 0.675 \\ Fatigue State \(\times\) Trial Type & 4.255 & 0.049 \({}^{*}\) & 49.231 & 0.03 \({}^{*}\) \\ Interruption Type \(\times\) Trial Type & 4.676 & 0.004 \({}^{*}\) & 34.516 & \textless{}0.01 \({}^{*}\) \\ Three-Way Interaction & 3.848 & 0.356 & 40.757 & 0.256 \\ \hline \end{tabular} Note. \({}^{*}\) indicates that the effect is significant, i.e., \(p\) < 0.05.  
\end{table} 
Table 2: Results of 2 \(\times\) 3 \(\times\) 2 three-way ANOVA analysis for behavioral performance. \begin{table}
\begin{tabular}{c c c c c} \hline
**Anova** & \multicolumn{2}{c}{**Reaction Time (RT)**} & \multicolumn{2}{c}{**Accuracy (ACC)**} \\ \hline Effect & \(F\) & \(p\) & \(F\) & \(p\) \\ Fatigue State & 2.726 & 0.102 & 42.193 & \textless{}0.01 \({}^{*}\) \\ Task Interruption Type & 6.151 & 0.015 \({}^{*}\) & 2.486 & 0.118 \\ Trial Type & 67.821 & \textless{}0.01 \({}^{*}\) & 99.002 & \textless{}0.01 \({}^{*}\) \\ Fatigue State \(\times\) Task Interruption Type & 3.078 & 0.031 \({}^{*}\) & 15.578 & \textless{}0.01 \({}^{*}\) \\ Fatigue State \(\times\) Trial Type & 76.848 & \textless{}0.01 \({}^{*}\) & 129.311 & \textless{}0.01 \({}^{*}\) \\ Task Interruption Type \(\times\) Trial Type & 106.703 & \textless{}0.01 \({}^{*}\) & 26.864 & \textless{}0.01 \({}^{*}\) \\ Three-Way Interaction & 6.043 & 0.245 & 9.353 & 0.511 \\ \hline \end{tabular} Note. \({}^{*}\) indicates that the effect is significant, i.e., \(p\) < 0.05.  
\end{table} 
Table 3: Results of 2 \(\times\) 2 \(\times\) 3 three-way ANOVA analysis for behavioral performance. affected P200 mean amplitude in the frontal (\(F(1,446)=50.225\), \(p<0.01\), \(\eta_{p}^{2}=0.101\)), central (\(F(1,446)=28.275\), \(p<0.01\), \(\eta_{p}^{2}=0.060\)), and parietal regions (\(F(1,446)=48.817\), \(p<0.01\), \(\eta_{p}^{2}=0.099\)). Interruption type significantly increased P200 amplitude in the frontal region (\(F(2,429)=4.817\), \(p=0.009\), \(\eta_{p}^{2}=0.022\)), while no significant effects were observed in the central (\(F(2,445)=2.813\), \(p=0.114\)) or parietal regions (\(F(2,429)=2.867\), \(p=0.058\)). A significant interaction between fatigue state and interruption type was observed in all three regions, highlighting the modulation of cognitive resource allocation under fatigue conditions. For P200 peak latency, fatigue state significantly affected the frontal region (\(F(1,446)=5.979\), \(p=0.015\), \(\eta_{p}^{2}=0.021\)), but had no significant effects in the central (\(F(1,446)=16.529\), \(p=0.784\)) or parietal regions (\(F(1,446)=0.985\), \(p=0.322\)). To analyze the differences in the mean amplitude and peak latency of the P200 component under varying fatigue states and interruption task types across different trial types, a 2(fatigued, non-fatigued) \(\times\) 3(simple task interruption, complex task interruption, pause interruption) \(\times\) 3(pre-interruption trials, interruption trials, recovery trials) repeated-measures ANOVA was conducted for the frontal, central, and parietal regions. The trial type significantly affected the intensification of the mean amplitude of P200 in the frontal region, but the main effects were not significant for the central region (\(F(2,445)=2.813\), \(p=0.114\)) or the parietal region (\(F(2,445)=1.585\), \(p=0.206\)).