Dr. Boris Hyle Park BIEN 175A Group F Joseph Steven Fletcher Ryan Alan LaCroix Gary Matthew Stroup Kenneth Gerard Sugerman March 15, 2010

 Produce a two dimensional EEG controller for widespread application  Mechanical arm  Hands free light for Dentist  Wheel Chair Adapted from Adapted from Purpose

Off Med High Off Med High  Training Time  <15 minutes  Output  Continuous Signal  25 ft control range  2 independent axes Specifications

 Reverse Engineer Force Trainer and Mindflex  Forcetrainer  Disassemble  Characterize Components  Mindflex  Disassemble  Characterize Components  Projected Completion date  March 14, 2010  End of the Quarter Timeline

 Determine Electrode Placement  Research possible locations  Test and analyze locations  Projected Completion Date  May 16, 2010  Demonstration Device  Tank like RC Car  Mimic wheelchair control  Projected Completion Date  June 4, 2010 Timeline Adapted from

Gantt Chart

Force TrainerMindflex NeuroSky Circuitry from Force Trainer Adapted from Consumer Products

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 Fan Modulation  Duty Cycle  Oscillating Signal  ~470 Hz  DC Drift  Peak Height Fan High Fan Medium Fan Off Previous Results

 Fan Modulation  Duty Cycle  Oscillating Signal  ~470 Hz  DC Drift  Peak Height Fan High Fan Medium Fan Off Previous Results

 Design Specification  Continuous  Three levels  Integrator Circuit  Electronically performs integration  RC Time constant Previous Results

 Design Specification  1000ms Response time  3 Levels of Control Previous Results

 Continuous control  Integrator  DC Drift  High Pass Filter  Peak Height  Threshold Circuit (Clamp)  AC to DC  Rectifier Fan High Fan Medium Fan Off Solutions

 Circuitry Design High Pass Current Progress

Adapted from

Damaged circuits in the Force Trainer 2 nd Force Trainer Components Analyzed without disassembly Current Progress

 Used FGEN to input a sine wave  45 Hz-300 Hz (5 Hz increments)  10 mV amplitude  Summation Circuit

 Used FGEN to input a sine wave  45 Hz-300 Hz (5 Hz increments)  10 mV amplitude  Summation Circuit

Adapted from

 Characterization of Mindflex and Force Trainer  Built and characterized an Integrator Circuit  Begun Work on Additional Circuit Components  Researched possible electrode placement  Analyzed Useable Signal Frequencies with a Function Generator Work Completed

 Continue design of a circuit to differentiate between medium and high signal  High Pass Filter  Threshold Circuit  Continue Troubleshooting of Circuit Components  Rectifier  Further Examine readings made by Mind Flex and Force Trainer  Summation Circuit  Continue Testing of Electrode Placements Future Work

Flatley, Joseph L. “G-Tec Intendix brain-computer interface ready for consumers.” ready-for-consumers-vid/ Galan, F. et al. “Continuous Brain-Actuated Control of an Intelligent Wheelchair by Human EEG”. ftp://ftp.idiap.ch/pub/papers/2008/galan-grazBCI pdf. Murph, Darren. “Thought-control research brings mental channel changing ever closer.” channel-changing-ever-clo/?icid=engadget-iphone-url Dr. Hyle Park Assistant Professor, Bioengineering A211 Bourns Hall, Riverside, CA Patel, Nilay. “Mattel Mindflex hack shocks you into serenity.” serenity/ Dr. Aaron Seitz, Assistant Professor, Psychology 3101 Psych, Riverside, CA Phone: Provost, Sheldon, J. Lucas McKay. “A real-time EEG Based Remote Control of a Radio -Shack Car”. Hong Xu, Development Engineer in Bioengineering at UCR A217 Bourns Hall, Riverside, CA Phone: The Local. “Scientists develop helmet to control toy cars via brain waves”. Science & Technology. 19 Jun References

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