N2 event-related potential component is associated with cardiac autonomic tone regulation during mental fatigue.

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.

Early Alpha Reactivity is Associated with Long-Term Mental Fatigue Behavioral Impairments.

The quantitative analysis of electroencephalogram (qEEG) is a suitable tool for mental fatigue (MF) assessment. Here, we evaluated the effects of MF on behavioral performance and alpha power spectral density (PSD) and the association between early alpha PSD reactivity and long-term behavioral MF impairments. Nineteen right-handed adults (21.