Physiology & Behavior ( IF 2.9 ) Pub Date : 2021-09-11 , DOI: 10.1016/j.physbeh.2021.113591 Hiago Murilo Melo 1 , Lucas Martins Nascimento 2 , Ana Cristina de Bem Alves 3 , Roger Walz 4 , Emílio Takase 5
Mental fatigue alters cognitive performance and autonomic regulation. The neurovisceral model proposes that forebrain structures associated to cognitive control abilities influences heart rate variability. Parasympathetic mediated heart rate variability indices reduction during mental fatigue experience is well-described in previous studies, but the contribution of heart-brain axis to cardiac autonomic adaptation remains unknown. This study investigates the association between root mean square of successive differences between RR intervals (rMSSD) and N2 event-related potential component during visual prolonged odd/ball task (≅ 60min.). The comparison between task blocks shows that rMSSD (p = 0.004) and N2 (p = 0.04) decreased with time on task. Pearson correlation shows that ΔrMSSD is associated with ΔN2 (p = 0.007). Our results support the neurovisceral integration model showing that cognitive control contributes to cardiac autonomic tone adaptation during mental fatigue experience.
中文翻译:
N2事件相关电位成分与精神疲劳时的心脏自主神经张力调节有关
精神疲劳会改变认知能力和自主神经调节。神经内脏模型提出与认知控制能力相关的前脑结构会影响心率变异性。在先前的研究中,副交感神经介导的心率变异指数降低在精神疲劳经历中得到了很好的描述,但心脑轴对心脏自主神经适应的贡献仍然未知。本研究调查了视觉延长奇数/球任务(≅ 60 分钟)期间 RR 间隔 (rMSSD) 和 N2 事件相关电位分量之间连续差异的均方根之间的关联。任务块之间的比较表明,rMSSD ( p = 0.004) 和 N2 ( p = 0.04)随着任务时间的增加而减少。Pearson 相关性表明 ΔrMSSD 与 ΔN2 ( p = 0.007) 相关。我们的结果支持神经内脏整合模型,该模型表明认知控制有助于在精神疲劳体验期间的心脏自主神经张力适应。