The variables of cueing condition (hand-cued, finger-cued, baseline), preparation interval (100 ms vs. 500 ms), and fixation condition (free vieweing vs. remain fixated) were manipulated intraindividually.
Under the fixation condition (Figure 1 D, E), the observers viewed moving bar arrays while fixating on the central stationary point and detected a similar color change.
The performance of the classical P300 speller, however, declines noticeably in the gaze fixation condition.
The DCM column rows behave as long piles with a fixation condition when Pr/H > 3.5, where H is the excavation depth.
However, perceived smear was substantially greater in the fixation condition for stimulus durations that were longer than the period of dot motion.
In the fixation condition, a small bright target was presented for a duration of 50 200 ms in rightward or leftward motion, while the observer remained stationary and maintained fixation.
In the fixation condition, the bright dot moved right or left at 50, 100, or 200° s−1 while the observer viewed a stationary target and, thereafter, remained stationary.
A model where a contact condition was assumed for the implant and artificial mandible (a contact model) was constructed, as was a model where a fixation condition was assumed (a fixation model).
In the fixation condition, differences are much smaller between mid and post-reversal gaze positions.
A monoclonal can be specific on whole mounts under one fixation condition, but not under another.
For the fixation condition, we excluded trials in which the RMSE >0.2 deg.
