Figure 6.

Modulation of frontal–thalamic connections. Contextual modulation of the descending (dPFC → thalamus) and ascending (thalamus → dPFC) pathways are graphically presented. Differences from zero (denoted by *) and among means (denoted by ϕ) were Bonferroni corrected (p < 0.0033, see text). (a) There was a significant increase in the modulation of the descending (dPFC → thalamus) pathway during the 3‐digit condition compared to the 2‐digit condition, suggesting an adaptive and dynamic mechanism for ensuring the required gain related to attention demands of the task. (b) In comparison, there were no differences between conditions in the contextual modulation of the ascending (thalamus → dPFC) pathway. Error bars are ±SD. [Color figure can be viewed in the online issue, which is available at http://wileyonlinelibrary.com.]