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Paper: PS-1B.36
Session: Poster Session 1B
Location: H Fl├Ąche 1.OG
Session Time: Saturday, September 14, 16:30 - 19:30
Presentation Time:Saturday, September 14, 16:30 - 19:30
Presentation: Poster
Publication: 2019 Conference on Cognitive Computational Neuroscience, 13-16 September 2019, Berlin, Germany
Paper Title: Cognitive Effort Modulates Frontal Effective Connections
Manuscript:  Click here to view manuscript
License: Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 Unported License.
Authors: Katharina Wegner, Ghent University, Belgium; Charlie Wilson, Emannuel Procyk, Inserm U1028, France; Karl Friston, UCL Wellcome Centre for Human Neuroimaging, United Kingdom; Daniele Marinazzo, Ghent University, Belgium
Abstract: Frontal beta band power has been shown to increase both as a consequence of elevated task demands and with time on task. Beta band power may thus be a neural correlate of cognitive effort. The present study report effective connections between the prefrontal and premotor cortex, areas known to be involved in cognitive control, and shows that these effective connections change in line with frontal beta band power. The changes in frontal connections, however, are unrelated to signs of mental fatigue. The interactions between task-relevant brain areas may thus be related to cognitive effort and not mental fatigue.