Trial Commands

Trial commands are the atomic events and smallest unit of actions and are used to compose trials. The following diagram is an example of a typical event sequence and the corresponding trial commands:

Level                                            Trial Definition

                              T1                                T2

Trial             ▄▄▄▄▄▄▄▄▄▄▄▄█▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄ ▄▄▄▄▄▄▄▄▄▄▄▄▄▄█▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄
                  ▌        ▐      ▐               ▌        ▐      ▐
                  ▌        ▐      ▐               ▌        ▐      ▐

                  CS       SP RK SP              CS       SP RK SP
Trial Commands


Response Registration            --▌>>>>>>>>>>>>>                --▌>>>>>>>>>>>>>

                           ▒▒▒▒▒▒▒ ▒▒▒▒▒▒▒▒▒▒▒▒▒▒           ▒▒▒▒▒▒▒ ▒▒▒▒▒▒▒▒▒▒▒▒▒▒
Event Sequence    █▀▀▀▀▀▀▀▀█▀▀▀▀▀▀█▀▀▀▀▀▀▀▀▀▀▀▀▀▀ █▀▀▀▀▀▀▀▀▀█▀▀▀▀▀▀█▀▀▀▀▀▀▀▀▀▀▀▀▀▀

                  Pause    Fixp   Stimulus    Pause     Fixp       Stimulus
                  1000     500    1500 ms     1000      500        1500 ms

Supported event types can be clustered into the following categories:

Stimulus Presentation

Visual Presentation

Auditory Presentation

Capturing Responses

Record Key Press

Record Text Input

Wait for Key

Rate on a VAR/Likert scale

Response-dependent Actions

Feedback depending on correctness

Actions depending on key press

Staircase process

Random Mechanisms

Integrated in visual presentation

Generic random processes based on set operations

System Commands

Setting color, font, etc.