BrainWave

A python project which uses a Muse 2016 to make a servo-powered hand wave by using theta power as a biomarker for 'focus'.

Process chain

Users wear Muse and neural signal is sent to Windows PC through Muselsl and BlueMuse. Muselsl supports time series visualization using muselsl view. To start calibration with system, run Wave.ipynb. This will initiate a PsychoPy calibration screen which directs users to relax and focus. This trains our system to understand the users current specific theta power threshold which determines 'focused' vs 'non-focused' states.

Code Structure

Wave.ipynb : Main

psycho_tracker.py : The Calibration class and other metric collection things

data_record.py : Data record class for Calibration class to hold

utils.py : Collects data from inlet

process.py : Returns the smooth band powers given the eeg_data

metrics.py : Calculates and returns the metrics (e.g. alpha, theta, beta, delta) given the smooth band powers

PsychoPy_Code/PsychoRun.py : run_psychopy() to run the calibration visuals

PsychoPy_Code/pics : The images that PsychoPy uses

PsychoPy_Code/data : The data recoreded by PsychoPy records (not necessary)

PsychoPy_Code

• BrainWave.py contains the most up-to-date code for the PsychoPy calibration portion. To run, make sure you have PsychoPy dependencies installed https://www.psychopy.org/installation.html Workflow:
  1. Introduction click
  2. Instructions click
  3. Loop (3 times, each with a random landscape and Waldo image)
     3a) Relax cue 1s
     3b) Relax 10s w/ Landscape image
     3c) Focus cue 1s
     3d) Focus 7s w/ Where's Waldo image