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The newTrial command (formerly PennController) creates a new PennController trial. You can use it in three environments: on its own to create a trial (since version 1.0), within Template to generate trials from a spreadsheet, or within the definition of the Ibex variable items to create single elements (deprecated since PennController 1.0).



What does (PennController.) mean?

  • ... :


  • (PennController.)newTrial( "label" , ... )


  • It takes a sequence of commands as its parameter, which will define the trial’s script. Optionally, you can also pass a string as the first parameter to give a label to your trial which you can refer to when defining the experiment’s sequence order in Sequence. If you pass no string for a label, the trial will be labeled unlabeled.


PennController 1.7


@    newButton("helloworld", "Hello world!")
@        .print()
@        .wait()
@Template( row => 
$    newTrial( row.Type ,
@        newButton("button", row.ButtonText)
@            .print()
@            .wait()
@    )
  • Creates one trial labeled unlabeled with a single button on the screen reading Hello world!, and generate one-button trials from a spreadsheet, assigning the text from its Type cells as their label and the text from its ButtonText cells as the button’s text (see Template).