As part of a larger study on the effects of fatigue on various attentional and behavioural measures, we had participants complete a modified version of Luna et al.’s (J Neurosci Methods 306:77–87, Luna et al., J Neurosci Methods 306:77–87, 2018) ANTI-Vea task (mANTI-Vea) at the beginning and end (pre/post) of each of two 8-h testing sessions. Between these administrations of the mANTI-Vea our participants spent ~ 6 h performing an intervening task. Our intent in this project was two-fold: first, to replicate the pattern of effects reported in Luna et al.’s original presentation of the ANTI-Vea; second, to assay the impact of fatigue on vigilance and attention by observing shifts in mANTI-Vea performance as a function of time on task and before versus after the intervening task. With time-on-task (the mANTI-Vea is divided into six sub-blocks) we observed that participants became increasingly conservative in their biases to respond towards infrequent targets, showed a decline in sensitivity, and lapsed in responding in the psychomotor vigilance task with greater frequency. In the pre/post comparison, we observed an increase in the proportion of lapses, but not in participants’ response biases. Attentional network scores were found to be somewhat insensitive to our fatigue manipulations; the effect of time-on-task was only significant for orienting scores on RT, and our pre/post comparison was only significant for RT derived executive functioning scores.

作为对疲劳对各种注意和行为措施的影响的一项较大研究的一部分，我们让参与者完成了Luna等人（J Neurosci Methods 306：77-87，Luna等人，J Neurosci Methods 306：77–87，2018）在两个8小时测试会话的开始和结束（前/后）中执行ANTI-Vea任务（mANTI-Vea）。在mANTI-Vea的这些管理之间，我们的参与者花费了大约6个小时来执行干预任务。我们在这个项目中的意图是双重的：首先，复制Luna等人在ANTI-Vea的原始演示中报告的效果模式；其次，通过观察在干预任务前后以​​及干预任务前后的时间，mANTI-Vea表现的变化来分析疲劳对警惕性和注意力的影响。通过任务执行时间（mANTI-Vea分为六个子模块），我们观察到参与者在应对偶发目标时的偏见变得越来越保守，表现出敏感性下降，并且在心理运动警惕任务中的响应能力下降频率更高。在之前/之后的比较中，我们观察到失误的比例有所增加，但参与者的反应偏差却没有。发现注意力网络得分对我们的疲劳操作不敏感。任务完成时间的影响仅对定向RT的得分有意义，而我们的前后比较仅对RT得出的执行功能得分显着。并且在对心理运动保持警惕的任务中做出响应的频率更高。在之前/之后的比较中，我们观察到失误的比例有所增加，但参与者的反应偏差却没有。发现注意力网络得分对我们的疲劳操作不敏感。任务完成时间的影响仅对定向RT的得分有意义，而我们的前后比较仅对RT得出的执行功能得分显着。并且在对心理运动保持警惕的任务中做出响应的频率更高。在之前/之后的比较中，我们观察到失误的比例有所增加，但参与者的反应偏差却没有。发现注意力网络得分对我们的疲劳操作不敏感。任务完成时间的影响仅对定向RT的得分有意义，而我们的前后比较仅对RT得出的执行功能得分显着。