Brain Wars, A Mental Game of Tug of War

Types of Brainwaves

  • Alpha
    • 8-12 Hz
    • Relaxation, meditation
  • Beta
    • 12-38 Hz
    • Attention, problem solving
  • Gamma
    • 38-42 Hz
    • Memory, recollection

Attention and Meditation

NeuroSky has algorithms named Attention and Meditation that take a running average of Beta and Alpha waves, respectively.

System Diagram

Diagram
  • Can display multiple players or brainwave types
  • Oscilloscope uses Gnuplot
  • TicCMD used to control motor

Hardware

Brain War game dial
Neurosky mindwave headset
Servo
Oscilloscope Gnuplot output
Stepper driver

Games Modes

Versus

  • 2 Players
  • Any brainwave
  • Dial moves based on difference in brainwaves
  • Pull the dial all the way to your side to win
  • Dial becomes more sensitive after 60 secons

Carnival

  • 1 Player
  • Any brainwave
  • Hold your mind in the target brainwave to move the dial
  • Dial only moves while above a mental threshold
  • 120 seconds

Free Play

  • 1 Player
  • Balance between 'Attention' (100) and 'Meditation' (0)
  • Hold the dial at 50
  • Game over after reaching 0 or 100