Dissociable Effects of Reward on P300 and EEG Spectra Under Conditions of High vs. Low Vigilance During a Selective Visual Attention Task
Liu, J., Zhang, C., Zhu, Y., Liu, Y., Sun, H., Ristaniemi, T., Cong, F., & Parviainen, T. (2020). Dissociable Effects of Reward on P300 and EEG Spectra Under Conditions of High vs. Low Vigilance During a Selective Visual Attention Task. Frontiers in Human Neuroscience, 14, Article 207. https://doi.org/10.3389/fnhum.2020.00207
Published inFrontiers in Human Neuroscience
Liu, Jia |
DisciplineTietotekniikkaMonitieteinen aivotutkimuskeskusMathematical Information TechnologyCentre for Interdisciplinary Brain Research
© 2020 Liu, Zhang, Zhu, Liu, Sun, Ristaniemi, Cong and Parviainen
The influence of motivation on selective visual attention in states of high vs. low vigilance is poorly understood. To explore the possible differences in the influence of motivation on behavioral performance and neural activity in high and low vigilance levels, we conducted a prolonged 2 h 20 min flanker task and provided monetary rewards during the 20- to 40- and 100- to 120-min intervals of task performance. Both the behavioral and electrophysiological measures were modulated by prolonged task engagement. Moreover, the effect of reward was different in high vs. low vigilance states. The monetary reward increased accuracy and decreased the reaction time (RT) and number of omitted responses in the low but not in the high vigilance state. The fatigue-related decrease in P300 amplitude recovered to its level in the high vigilance state by manipulating motivation, whereas the fatigue-related increase in P300 latency was not modulated by reward. Additionally, the fatigue-related increase in event-related spectral power at 1–4 Hz was sensitive to vigilance decrement and reward. However, the spectral power at 4–8 Hz was only affected by the decrease in vigilance. These electrophysiological measures were not influenced by motivation in the state of high vigilance. Our results suggest that neural processing capacity, but not the timing of processing, is sensitive to motivation. These findings also imply that the fatigue-related impairments in behavioral performance and neural activity underlying selective visual attention only partly recover after manipulating motivation. Furthermore, our results provide evidence for the dissociable neural mechanisms underlying the fatigue-related decrease vs. reward-related increase in attentional resources. ...
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Related funder(s)Academy of Finland
Funding program(s)Academy Project, AoF
Additional information about fundingThis work was supported by the National Science Foundation of China (No. 91748105, No. 61703069), the Fundamental Research Funds for the Central Universities in Dalian University of Technology in China (DUT2019), the Academy of Finland grant (No. 295076), and the scholarships from China Scholarship Council (No. 201600090044; No. 201600090042). Open access funding was provided by the University of Jyväskylä (JYU). ...
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