To establish correlations between the variability of the neuronal data and the variability of the behavior, Fano factors were calculated using three, five or seven consecutive trials, allowing us to increase the resolution of the variability measures.
Our trials allow us to show that the differences between values calculated with and without QoD are always representatively small and bounded.
Horizontal eye movement recordings during VOR trials allowed us to calculate the velocity of retinal image motion on each VOR trial.
In the ANT task, responses to spatial cued trials are subtracted from responses to center cued trials, allowing us to measure the efficiency of the orienting network (Costa et al 2008).
Lastly, it is important to note that the event-related design and data analyses that segregated correct from error trials allowed us observe the neural correlates of remembering and forgetting, regardless of the overall performance.
At the behavioral level, our study has shown that global behavioral performance is improved after erroneous trials, allowing us to propose a relationship between WS processing and behavioral performance adjustment.
First, our study spans a larger range of processing times, encompassing very short as well as longer times, at which stimulus sensitivity reaches asymptotic levels; and second, each participant in our study completed a substantially larger number of experimental trials, allowing us to assess the adequacy of alternative models to fit individual participant data.
We created a design matrix in which for each of the four conditions we modelled the cue-period (consisting of the cue and the stimulus set), the delay period, the probe period (including the button press for the response), and the inter-stimulus-interval separately for correct and incorrect trials, allowing us to look at the different stages of a trial for each condition separately.
These error-clamp trials allowed us to measure the anticipatory forces produced by subjects.
These latter two categories of trials allowed us to estimate the distance effect.
