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• Acknowledgments
• How to use your book
• Online resources
• 1 Introduction
• 1.1 Creating experiments
• 1.2 Building versus coding
• 1.3 Pros and cons of open-source software
• 1.4 PsychoPy and Pavlovia: An open-source funded hybrid
• 1.5 Understanding your computer
• 1.6 What is PsychoPy?
• 1.7 Getting started
• 1.8 Going further
• 1.9 Conventions of this book
• PART I FOR THE BEGINNER
• 2 Building your first experiment
• 2.1 The Builder interface
• 2.2 Building the Stroop task
• 2.3 Define your conditions
• 2.4 Defining the trial structure
• 2.5 Adding a loop to repeat trials
• 2.6 Varying your stimuli on each trial
• 2.7 Add some instructions
• 2.8 Add a thank-you slide
• 2.9 Changing your info dialog
• 2.10 Analyze your data
• 3 Using images: A study into face perception
• 3.1 Accuracy versus reaction time
• 3.2 Testing face recognition
• 3.3 Image sizes in different units
• 3.4 Comparing inverted and correctly oriented faces
• 3.5 Additional options for images
• 3.6 Present a movie instead of an image
• 4 Timing and brief stimuli: Posner cueing
• 4.1 Presenting brief stimuli precisely
• 4.2 Posner cueing
• 5 Running studies online
• 5.1 Getting started online
• 5.2 Launching your study online
• 5.3 Using touch screen devices
• 5.4 Debugging your study online
• 5.5 Recruitment online
• 5.6 Potential issues with online studies
• 6 Creating dynamic stimuli (revealing text and moving stimuli)
• 6.1 What does dynamic mean and why is it useful?
• 6.2 Inserting code into parameters
• 6.3 Example 1: Revealing text gradually
• 6.4 Example 2: Spinning, expanding images
• 6.5 Example 3: Change colors through the rainbow
• 6.6 Example 4: Make a heart that has a pulse
• 6.7 Going further
• 7 Providing feedback: Simple code components
• 7.1 Providing feedback
• 7.2 Updating the feedback color
• 7.3 Reporting the reaction time
• 7.4 Ideas for useful code snippets
• 7.5 Reporting performance over the last five trials
• 7.6 Using different ‘code types’
• 8 Collecting survey data using forms
• 8.1 Setting up a form in PsychoPy
• 8.2 Categories, Likert or continuous ratings
• 8.3 Free text responses
• 8.4 Adding a button to submit form answers
• 8.5 Feedback: using responses from forms
• 9 Using sliders
• 9.1 The Müller–Lyer illusion
• 9.2 Basic Slider settings
• 9.3 Using sliders to grow/shrink stimuli
• 10 Randomizing and counterbalancing blocks of trials: A bilingual Stroop task
• 10.1 Blocking trials
• 10.2 The bilingual Stroop task
• 10.3 Build a blocked version of the Stroop task
• 11 Using the mouse for input: Creating a visual search task
• 11.1 Getting spatial responses
• 11.2 Visual search
• 11.3 Implementing the task
• 11.4 Introducing the Mouse Component
• 11.5 Control stimulus visibility from a conditions file
• 11.6 Control stimulus positions using code
• 11.7 Responding to mouse clicks spatially
• 11.8 Selectively skipping a Routine
• 11.9 Making smooth trial transitions
• 11.10 Pointing rather than clicking
• PART II FOR THE PROFESSIONAL
• 12 Implementing research designs with randomization
• 12.1 How can we assign subjects to conditions or groups?
• 12.2 Understanding loop ordering options
• 12.3 Summary
• 13 Coordinates and color spaces
• 13.1 Coordinate systems
• 13.2 Color spaces
• 13.3 Phase of textures
• 14 Understanding your computer timing issues
• 14.1 Does PsychoPy have sub-millisecond precision?
• 14.2 Understanding screen refresh rates
• 14.3 Testing your stimulus timing
• 14.4 Timing by screen refresh
• 14.5 Images and timing
• 14.6 Response-time precision
• 14.7 Timing in online studies
• 15 Monitors and Monitor Center
• 15.1 Computer display technology
• 15.2 Monitor Center
• 15.3 Monitor calibration
• 15.4 Spatial calibration
• 15.5 Gamma correction
• 15.6 Color calibration
• 16 Debugging your experiment
• 16.1 Warnings and alerts
• 16.2 Errors
• 16.3 Common mistakes without errors
• 16.4 How to debug an experiment
• 16.5 Writing a better query to the forum
• 17 Pro tips, tricks and lesser-known features
• 17.1 Adding a readme file to your experiment
• 17.2 Expand or shrink the flow and routine
• 17.3 Copying and pasting routines and components
• 17.4 Online repositories for sharing your experiments
• 17.5 Using variables from the dialog box in your experiment
• 17.6 Controlling names of your data files and folders
• 17.7 Running in windowed mode
• 17.8 Re-creating your data files
• 17.9 Skipping a part of your experiment
• 17.10 Turn tips back on
• PART III FOR THE SPECIALIST
• 18 Psychophysics, stimuli and staircases
• 18.1 Gratings and Gabors
• 18.2 Smooth-edged masks (Gaussian and raised cosine)
• 18.3 Using images as masks
• 18.4 Element arrays
• 18.5 Random dot kinematograms
• 18.6 Staircase and quest procedures
• 19 Building an fMRI study
• 19.1 Detecting trigger pulses
• 19.2 Non-slip timing
• 19.3 How to calibrate a monitor for fMRI
• 20 Building an EEG study
• 20.1 What is special about eeg studies?
• 20.2 Sending EEG triggers
• 20.3 Communicating by parallel port or usb
• 20.4 Sending EEG triggers by network connections
• 20.5 Using custom libraries
• 21 Add eye tracking to your experiment
• 21.1 Eye tracking in Builder
• 21.2 Calibration
• 21.3 Tracking gaze position
• 21.4 Using regions of interest
• 21.5 Data storage via ioHub
• 21.6 Saving image and movie stimuli to disk
• Appendix A Mathematics refresher
• A.1 Sine and cosine
• A.2 Rescaling and changing start points
• A.3 Pythagoras’ theorem
• Appendix B Exercise solutions
• References
• Index