MindVoice Study Data Collection Setup

Experiment and configuration files for PsychoPy incorporating the Lab Streaming Layer (LSL) for data collection.

Pre-Requisites

• Setup the Recording Environment by following this guide
• Read through the data collection protocol for this experiment

Repository Structure

Scripts

• The scripts folder contains useful scripts for sending audio recordings over LSL and evaluating and processing the data after the recording is complete.

Stimuli

• The stimuli folder contains the words and sentences used as a stimulus for the experiment.

Experiment Configurations

• config.yaml file contains the various configurations for accommodating different modalities in the experiment and handling the timings for various routines in the experiment.
• It currently supports three configurations: eeg, fnirs, test
• Each of the configurations has the following attributes:

  baseline_duration: 30 # Duration of the baseline routine (in seconds)
  stimuli_repeats: 3 # Number of times each sound stimulus will repeat
  stimulus_duration: 3 # Duration of the stimulus routine (in seconds)
  imagine_duration: 5 # Duration of the imagine routine following the stimulus (in seconds)
  speak_duration: 5 # Duration of the speaking routine following the stimulus (in seconds)
  rest_range: [8, 12] # Duration range of the rest routine following the response (in seconds)

• Check the config.yaml file for the actual values for each configuration

PsychoPy Configuration

• Experiment files:
  • mindvoice-pt1.psyexp: Experiment file for part 1 of the experiment (using words as a stimuli)
  • mindvoice-pt2.psyexp: Experiment file for part 2 of the experiment (using sentences as a stimuli)
• Before running the PsychoPy experiment, it expects a few inputs:
  • participant: A unique ID (number) for the participant. By default, it generates a random number which can be changed.
  • run: Run number for the same participant for the same experiment if multiple recordings are needed (usually 1)
  • config: The name of the experimental configuration value defined above.
  • test_run: A single run of the experiment to ensure all the settings are configured properly. Accepts either true or false as inputs.