Effects of mental workload and fatigue on the P300, alpha and theta band power during operation of an ERP (P300) brain–computer interface

Käthner, Ivo; Wriessnegger, Selina; Müller-Putz, Gernot; Kübler, Andrea; Halder, Sebastian

doi:10.1016/j.biopsycho.2014.07.014

Cited by 250 publications

(239 citation statements)

References 81 publications

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“…In the FFG, a brain area known for object recognition and reading (37), the P3b-amplitude decreased in time, while the P3b-latency increased in time during the Stroop task in the present study. Käthner et al (14) and Hopstaken et al (11) both studied the P3b on the Pz-electrode (=an electrode in the parietal region ) during a mentally fatiguing task and also found a decrease in P3b amplitude with increasing self-reported mental fatigue and time-on-task. Polich suggested (27) that the P3b is related to temporal-parietal activity, an area where dense norepinephrine inputs are found (27).…”

Section: A C C E P T E Dmentioning

confidence: 99%

“…dorsolateral prefrontal cortex (DLPFC), anterior prefrontal cortex (APFC) and somatosensory association cortex (SAC)). Specific changes in brain-activity in this part of the cortex have frequently been associated with an impaired cognitive performance and mental fatigue (2,11,14,36).…”

Section: A C C E P T E Dmentioning

confidence: 99%

“…We hypothesized mental fatigue would be induced in the heat, characterized by subjective (higher ratings of mental fatigue (4,17,33)), neurophysiological (lower P3b-amplitude (11,14) and higher fronto-parietal theta ( )-and alpha ( )-activity (2, 36) due to mental fatigue) and behavioral measures (decreased accuracy and increased reaction time (RT) in time due to mental fatigue (17,33)). Mental fatigue would subsequently negatively affect performance on the endurance task in the heat.…”

Section: A C C E P T E Dmentioning

confidence: 99%

“…Before the incremental test the position on the cycle ergometer was adjusted for each subject, and settings were recorded and reproduced at each subsequent visit. Subjects were also given standard instructions for overall RPE using the 15-point scale (6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20) developed by Borg (3). During the incremental exercise test, the scale low and high anchor points were established.…”

Section: Experimental Protocolmentioning

confidence: 99%

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Effects of Mental Fatigue on Endurance Performance in the Heat

Cutsem

Pauw

Buyse

et al. 2017

Medicine &Amp; Science in Sports &Amp; Exercise

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Purpose: Mental fatigue is a psychobiological state caused by prolonged periods of demanding cognitive activity and has been observed to decrease time-trial (TT) endurance performance by ~3,5% in normal ambient temperatures. Recently it has been suggested that heat may augment the negative effect of mental fatigue on cognitive performance, raising the question whether it may also amplify the effect of mental fatigue on TT-performance. Methods: In 30 °C and 30% relative humidity, ten endurance-trained male athletes (Age: 22 ± 3 y; W max : 332 ± 41 W) completed two experimental conditions: intervention (I; 45-min Stroop task) and control (C; 45-min documentary). Pre and post intervention/control, cognitive performance was followed up with a 5-min Flanker task. Thereafter subjects cycled for 45 min at a fixed pace equal to 60%-W max , immediately followed by a self-paced TT in which they had to produce a fixed amount of work (equal to cycling 15 min at 80%-W max ) as fast as possible. Results: Self-reported mental fatigue was significantly higher after I compared to C (P<0.05). Moreover electroencephalographic measures also indicated the occurrence of mental fatigue during the Stroop (P<0.05). TT-time did not differ between conditions (I: 906 ± 30 s, C: 916 ± 29 s).Throughout exercise, physiological (heart rate, blood lactate, core and skin temperature) and perceptual measures (perception of effort and thermal sensation) were not affected by mental fatigue. Conclusion: No negative effects of mild mental fatigue were observed on performance and the physiological and perceptual responses to endurance exercise in the heat. Most plausibly mild mental fatigue does not reduce endurance performance when the brain is already stressed by a hot environment.

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Section: A C C E P T E Dmentioning

confidence: 99%

Section: A C C E P T E Dmentioning

confidence: 99%

Section: A C C E P T E Dmentioning

confidence: 99%

Section: Experimental Protocolmentioning

confidence: 99%

See 2 more Smart Citations

Effects of Mental Fatigue on Endurance Performance in the Heat

Cutsem

Pauw

Buyse

et al. 2017

Medicine &Amp; Science in Sports &Amp; Exercise

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“…[3][4][5] After comparing the characteristics of electroencephalogram (EEG), electrocardiogram (ECG) and electrooculogram (EOG), the authors analyzed EOG signals of operator's. Features of EOG signals contain eye blink rate, eye blink amplitude, closing time, eye blink variability, etc.…”

Section: Introductionmentioning

confidence: 99%

Electrooculogram Signals Analysis for Process Control Operator Based on Fuzzy c-Means

Song¹,

Wang²,

Zhang³

et al. 2015

ijacsa

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Abstract-Biomedical signals of human can reflect the body's task load, fatigue and other psychological information. Compared with other biomedical signals, electrooculogram (EOG) has higher amplitude, less interference, and is easy to detect. In this paper, the EOG signals of operator's were analyzed. Wavelet transform was used to remove the highfrequency artifacts. Then fuzzy c-means was adopted to detect the eye blink peak points of EOG. After that, eye blink interval (EBI) of operator was calculated. Four EOG features (the average of EBI, variance of EBI, standard deviation of EBI and variation coefficient of EBI) were extracted. Finally, the relationship between EOG features and operator's fatigue, effort, anxiety and task load were analyzed. The experimental results illustrate that EOG features had some relation to the operator's fatigue, effort, anxiety and task load respectively.

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