Brain oscillations in cognitive control: A cross-sectional study with a spatial stroop task

“…Crucially, the magnitude of a large-scale β suppression, when a subject formed his/her decision reliably, predicted decision costs (with response time taken as a measurable proxy of this internal variable) on a single trial basis. Given multiple evidence associating the strength of β suppression with greater cognitive and attentional efforts 16–18 , this finding strongly suggests that such a choice requires additional resources to overcome the internal utility model favoring the advantageous alternative and strongly supports the hypothesis of its deliberately explorative nature 13,33 .…”

“…Crucially, the magnitude of a large-scale β suppression, when a subject formed his/her decision reliably, predicted decision costs (with response time taken as a measurable proxy of this internal variable) on a single trial basis. Given multiple evidence associating the strength of β suppression with greater cognitive and attentional efforts (Scharinger et al, 2017;Pavlova et al, 2019;Tafuro et al, 2019), this finding strongly suggests that such a choice requires additional resources to overcome the internal utility model favoring the advantageous alternative and strongly supports the hypothesis of its deliberately Time-frequency analysis of the heightened sensitivity to losses versus gains in late feedback-related anterior β-ERS after explorative LP choices. (A) Timecourses of β-band power averaged over three most significant sensors in the anterior cluster (shown in the inset at the top).…”

“…Besides the behavioural changes, we found increased Flanker task related beta activity. In the prefrontal cortex a connection of beta oscillations with WM, interference control and distraction prevention has been observed before 87 – 90 . Studies in adults suggest an activity selectivity of neurophysiological changes following tDCS combined with task performance 38 , 91 .…”