A growing body of research based on such invasive recordings indicates that cortical oscillations at various frequencies, especially in the gamma range (40 to 150 Hz), can provide efficient markers of task-related neural network activity.
The results revealed strong and varied effects of between-task competition on EEG markers of global task preparation a frontal contingent negative variation (CNV), a posterior slow positive wave, and oscillatory activity in the alpha band (8 12 Hz) over posterior scalp sites.
c-Fos is one of the immediate early genes that are induced by calcium influxes resulting from cell excitation[21] and thus is considered to be a marker of task-related neural activation [22], [23], [24], [25], [26], [27], [28], [29], [30].
These modulations were restricted to markers of global task preparation the CNV, slow posterior positivity, and oscillatory alpha power over posterior scalp sites and were absent in EEG measures of motor-specific preparation.
Specifically, we assessed whether EEG markers of general task preparation (CNV, slow posterior positivity, and parieto-occipital alpha power) and motor-specific preparation (LRP, mu-MRAA, and beta-MRAA) are sensitive to the asymmetrical costs and biases that are associated with switching between tasks differing in their relative strength.
As predicted markers of performance, for task fMRI, we used behavioral data obtained while performing the VWM and SFM tasks in the scanner.
The application of DNA‐based markers toward the task of discriminating among alternate salmon runs has evolved in accordance with ongoing genomic developments and increasingly has enabled resolution of which genetic markers associate with important life‐history differences.
The present study investigated the impact of task difficulty on EEG markers of intentional preparation in voluntary task switching.
