Sentence examples for coherence trials from inspiring English sources
In the coherence trials (3/7 of all trials), a subset of the dots started moving coherently to the left or right, with the strength of this coherence increasing at a rate of 1% per second.
The hemodynamic time courses of the coherence trials were either stimulus- or response-locked.
We investigated this possibility by measuring the effect of speed-accuracy instructions on brain activity in the 'baseline' (0% motion coherence) trials.
There was greater pre-response activity with the accuracy condition than there was with the speed condition when the motion coherence signal was present (coherence trials).
Specifically, we measured the correlation between the accuracy-speed differences in c with the accuracy-speed differences in hemodynamic activity during the coherence trials.
However, the pLPFC activation difference between speed and accuracy conditions during coherence trials did correlate with the difference between speed and accuracy in the decision criterion, c.
Statistical tests between condition-by-coherence trials i and j were based on paired differences between the same bootstrapped samples.
For high-coherence trials, the strong sensory evidence dominated the decision process, yielding >90% accuracy within 500 ms following the final change in direction irrespective of the rate of preceding direction changes.
Accuracy levels for the easy trials (20%and40%40 % coherence) were higher for the visual than for the auditory task (note that the 80 %-coherence trials were discarded from the DDM analyses, as participants made very few incorrect choices for this stimulus strength).
As shown in Figure 4, there was a gradual increase in theta spike-LFP coherence across trials that matched the time course of the behavioral improvement during learning.
Principal cells that exhibited significant spike-phase coherence during correct trials (Correct Trials Only and All Trial categories) are shown in red, while cells that exhibited significant spike-phase coherence during Incorrect Trials Only are shown in black.
