9.12.2020 What happens in our brain after working long hours? (Liu)
‘’Although mental fatigue is a ubiquitous phenomenon in our daily life, its mechanism lacks an agreement theoretical framework. There are some debates on whether mental fatigue relates to overload tasks, underload tasks, or motivation. It is still unknown whether the effect of mental fatigue is task-specific or not”, says Jia Liu.
Jia Liu’s dissertation explores the effects of mental fatigue on behavioral and brain activities during prolonged selective and sustained attention tasks. Her dissertation also extracts useful neural markers for the detection of mental fatigue and verifies the theoretical frameworks of mental fatigue.
“We find that mental fatigue impairs brain activities in two different types of attentional tasks. The performance deteriorations in these two tasks support that mental fatigue is associated with energetical costs and motivation control”, Jia Liu tells.
Taken together, these results from this dissertation derives efficient neural markers indicating the state of fatigue and provide evidence for the theoretical framework of mental fatigue. The findings help us better learn the mechanism of mental fatigue and might be implications in avoiding serious consequences resulted from a long period of work.
M.Eng. Jia Liu defends her doctoral dissertation in Software and Communications Engineering "Electrophysiological brain activity fluctuations during a long period of task engagement" December 9 starting at 9 am. Opponent Professor Chin-Teng Lin (University of Technology Sydney, Australia) and Custos Senior Reseacher, Docent Zheng Chang (University of Jyväskylä). The doctoral dissertation is held in English.
The audience can follow the dissertation online.
Link to the Zoom Webinar (Zoom application or Google Chrome web browser recommended): https://r.jyu.fi/dissertation-liu-091220
Phone number to which the audience can present possible additional questions at the end of the event (to the custos): +358 40 8054143
