Builder

Survey Experiment

Background color of the canvas area behind the trial screen.

Duration of blank interval between trials.

Background color of the experiment area.

Displays a "+" prior to stimulus onset.

Duration the fixation cross before the stimulus appears.

Color of the fixation cross.

Horizontal position relative to center (negative = left, positive = right)

Vertical position relative to center (negative = up, positive = down)

How long the stimulus remains visible (0 = until response, any other value = milliseconds before disappearing).

Total number of trials for this block.

Set the minimum number of correct responses required to end the experiment (0 = no threshold). The trials will keep cycling until this threshold is reached.

Available Variables

Sequence Builder

Use square brackets for sequential groups: e.g., ['X', 'Y'], 'Z'

Use curved brackets for concurrent display: e.g., ('X', 'Y')

When checked, stimuli are selected randomly without repeating until all are shown. When unchecked, stimuli appear in the order listed.

Customize response properties for text and image stimuli separately.

The font size of the stimulus text in pixels.

The color of the stimulus text.

Key that participants press to advance to the next trial. Defaults to SPACEBAR if left empty.

Other keys that can advance trials (comma-separated). These are always accepted.

When checked, participants will receive feedback (Correct/X) on their responses.

Duration feedback remains visible.

When checked, data will be saved and available for download.