Stimuli: A single letter, tone or image shown (generally in an inquiry). Singular = stimulus, plural = stimuli.
Trial: A collection of data after a stimuli is shown. A—-
Inquiry: The set of stimuli after a fixation cross in a spelling task to gather user intent. A —- B — C —-
Series: Each series contains at least one inquiry. A letter/icon decision is made after a series in a spelling task.
Session: Data collected for a task. Comprised of metadata about the task and a list of Series.
Task: An experimental design with stimuli, trials, inquiries and series for use in BCI. For instance, “RSVP Calibration” is a task.
Mode: Common design elements between task types. For instance, Calibration and Free Spelling are modes.
Paradigm: Display paradigm with unique properties and modes. Ex. Rapid-Serial Visual Presentation (RSVP), Matrix Speller, Steady-State Visual Evoked Potential (SSVEP).