Loss of Alertness under Cognitive Fatigue Using EEG Synchronization

A drop in alertness is likely to be induced by continuous and repetitive performance of cognitive tasks. EEG has been identified as a significant marker of changes in alertness during performance of a repeated task set. The present paper analyses the drop in alertness of subjects due to increase in fatigue levels using the variation in parameters of brain networks formed from synchronization values of EEG recorded during the performance of an Auditory Response Test. The results show the efficacy of using EEG records to reflect rise in fatigue levels of subjects with increase in cognitive loading.