Following a brief interval after the cue is removed, a target stimulus, usually a shape, appears in either the left or right box.
Participants are to look for and indicate if a particular stimulus is the target stimulus.
It is then that participants are given a cue indicating the identity of a target stimulus.
These internal representations are then compared to the target stimulus, one at a time.
The P3b is typically observed around 300ms after each presentation of the target (oddball) stimulus.
This explains why search times are longer when distractors share one or more features with the target stimuli.
During this time, the person attempts to detect the appearance of a particular target stimulus.
The target stimuli consist of words with known positive or negative valence.
In the tests, a directional response (generally left or right) is made to a central target stimulus.
This method involves hiding the target auditory stimulus in some way.