The effect does not seem to reflect task difficulty, since no increased activation in left IPL/IPS was found when the task was simply made more difficult without a corresponding change in saliency [27] [28].
The second analysis assessed the 'effective connectivity' as a function of the task versus rest: The raw timeseries data were multiplied by +1 for signal reflecting task periods (i.e., delayed by 6 s), and −1 for signal related to rest periods.
This may well reflect task differences.
Letter strings elicited an intermediate response (7.24 μV), probably still reflecting task difficulty.
This means that one can identify activation reflecting task rules wherever it is.
The significant discrimination performance by session interaction reflected task acquisition (F 7,119) = 27.4, P < 0.001).
Iowa Gambling Task (IGT) findings are inconsistent in ADHD, possibly reflecting task sensitivity to disrupted working memory and learning (3,4).
We believe that the post-decision signals reported in our study are not simply oculomotor responses reflecting task difficulty.
Low-demand network activity may reflect task- and performance monitoring that minimizes executive requirements for guidance of behavior.
In the second step, passive listening to number words was contrasted to passive listening to pseudowords to isolate activation reflecting task irrelevant automatic magnitude processing.
