Mr. Baucus said that he, too, wanted a simple stimulus plan.
We found interesting patterns within our experimental exploration with a simple stimulus, task, and condition structure.
In a simple stimulus detection experiment, subjects are presented several stimuli with varying amplitudes to which the corresponding responses (i.e., detected or not detected) are recorded.
By using a particularly simple stimulus (as compared to complex stimuli in studies [10] and [19]) and a task directly measuring brightness perception (as compared to an indirect task in [20]), we hope to clarify the issue.
This area is thought to be involved in speech processing [80], [81], perhaps as part of a computational hub for discerning complex spectrotemporal auditory objects and their locations [82], [83], and may thus have been less likely to be activated by our relatively simple stimulus type (i.e. tonal sweep).
First, models that rely on information loss through insufficient resolution of the attentional spotlight [ 13 15] predict little to no systematic target changes, contrasting with the strong percept elicited by our simple stimuli.
17 Similarly, for binocular rivalry, von Helmholtz 17 states that he could exert attentional control to keep one pattern dominant an "arbitrary" amount of time for a simple line stimulus and by performing a task (e.g., counting) with the respective percept for more complex patterns.
Indeed, 5 % perturbation in a stimulus is undetectable by a simple graphical inspection of the spike trains (bottom panels in the figure), but the finer statistical analysis can detect the difference between the models.
Depending on if a correct answer was given or not, the following stimulus was adjusted by a simple up-and-down procedure (2 dB/step).
This therefore allows us to parametrically manipulate the visibility of a simple visual stimulus.
