Builder

Building experiments in a GUI

You can now see a youtube PsychoPy tutorial showing you how to build a simple experiment in the Builder interface

Note

The Builder view is now (at version 1.75) fairly well-developed and should be able to construct a wide variety of studies. But you should still check carefully that the stimuli and response collection are as expected.

Contents:

• Builder concepts
  • Routines and Flow
  • Example 1 - a reaction time experiment
  • Example 2 - an fMRI block design
  • Demos
• Routines
• Flow
  • Adding Routines
  • Loops
• Blocks of trials and counterbalancing
  • Blocking
  • Counterbalancing
• Components
  • Aperture Component
  • Cedrus Button Box Component
  • Code Component
  • Dots (RDK) Component
  • Grating Component
  • Image Component
  • ioLab Systems buttonbox Component
  • Keyboard Component
  • Microphone Component
  • Mouse Component
  • Movie Component
  • Parallel Port Out Component
  • Patch (image) Component
  • Polygon (shape) Component
  • RatingScale Component
  • Sound Component
  • Static Component
  • Text Component
  • Entering parameters
  • How often to evaluate the variable/code
• Experiment settings
  • Settings
• Defining the onset/duration of components
  • Examples
• Generating outputs (datafiles)
• Common Mistakes (aka Gotcha’s)
  • General Advice
  • My stimulus isn’t appearing, there’s only the grey background
  • The loop isn’t using my Excel spreadsheet
  • I just want a plain square, but it’s turning into a grating
  • The code snippet I’ve entered doesn’t do anything
  • My stimulus isn’t changing as I progress through the loop
  • I’m getting the error message AttributeError: ‘unicode object has no attribute ‘XXXX’
  • The window opens and immediately closes
• Compiling a Script
• Set up your monitor properly

Future developments

The new big feature, which we’re really excited about is that Builder experiments are going to web-enabled very soon! Make sure you watch for new posts in the PsychoPy forum Announcements category so you get updates of when this is available.