Comparison of consumer brain–computer interfaces

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bt This is a comparison of brain-computer interface devices available on the consumer market.

Comparison[edit]

Device Price Electrodes ADC bits Sensors Interpret: Peripheral SDK Released Producer Interface Notes
Aurora Dream Headband $199[1] 1 8 frontal EEG/EOG sensor, open SDK, embedded 4-stage sleep tracking, 2 LEDs near the eyes Yes Yes July 2015 iwinks Bluetooth Low Energy / USB / SD Card Consumer Sleep Device
Melon Headband $149 4  ? L+R hemisphere prefrontal EEG Yes Nov 2014 Melon Bluetooth Low Energy A headband and mobile app to measure your focus
iFocusBand $500[2] 1  ? 8 mental states, facial tension, eye movement & quiet eye [3] Yes Yes October 2014 iFocusBand Bluetooth Soft woven sensors, audio feedback.
MindWave $99.95 [4] 1[5] 12 2 mental states (based on 4 brainwaves), eyeblinks[6] Yes Yes[7][8] 21 March 2011; 5 years ago NeuroSky
Mindflex (Uses NeuroSky chips) $50 [9] 1[10] 12 1 mental state No No 21 December 2009; 6 years ago Mattel (Neurosky partner[10]
Emotiv EPOC+ $799 [11] 14[12] 16 3 mental states (based on brainwaves), 13 conscious thoughts, facial expressions, head movements (sensed by 2 gyros)[13] Yes Yes[14][15] 21 December 2009; 6 years ago Emotiv
Emotiv Insight $299 [16] 5[17] 14 Yes Yes August 2015; 12 months ago Emotiv Bluetooth 4.0 LE.[17]
Star Wars Force Trainer (based on NeuroSky chips) $45 [18] 1 [10] 12 1 mental state No No 21 June 2009; 7 years ago Uncle Milton (Neurosky partner[10] Discontinued
MindSet $199 [19] 1[20] 12 2 mental states (based on 4 brainwaves), eyeblinks[6] Yes Yes[21] March 2007; 9 years ago NeuroSky
Mindball $20,000 [22] 1[23]  ? 1 mental state No No 21 March 2003; 13 years ago Interactive Productline
XWave headset (uses NeuroSky chips) $90 [24] 1 12 8 EEG bands Yes Yes 5 January 2011; 5 years ago (Windows and iOS apps available now, Android app available soon[25]) PLX Devices Bluetooth Designed to look like a normal sports headband, no longer available
XWave Sonic (uses NeuroSky chips) $100 [26] 1 12  ?  ?  ? iOS apps available now PLX Devices Bluetooth Discontinued
MyndPlay BrainBand (Uses NeuroSky chips [27]) $158[28] 1 12 8 EEG bands Yes Yes 1 December 2011; 4 years ago MyndPlay Bluetooth Soft headband, uses conductive gel for ear-clip
Muse $299[29] 4 16 7 sensors; 5 front (2 active, 2 DRL, 1 reference), 2 active behind ears [30] ? Yes Shipped April 2014 InteraXon Bluetooth Comes with brain training app designed to reduce stress and improve focus.[31]
OpenBCI Ganglion Board $99[32] 4 24 EEG, EMG, EKG, and accelerometer data Yes Yes Funded via Kickstarter in late 2015. Slated to by shipped to backers in Summer 2016. OpenBCI Bluetooth 4.0 Compatible with all existing OpenBCI gear and accessories. A tDCS shield can also be added to this device to perform DIY neurostimulation.
OpenBCI 32bit Board $499[33] 8 24 EEG, EMG, EKG, and accelerometer data Yes Yes Shipped to general public Dec 2014 OpenBCI Bluetooth 4.0 Open hardware project. OpenBCI originated under a DARPA solicitation and then became a company after being funded on Kickstarter. While a tDCS shield Kickstarter was run, recent OpenBCI newsletters confirm they will not be made due to safety concerns.
OpenBCI R&D Kit $899[34] 16 24 EEG, EMG, EKG, and accelerometer data Yes Yes Shipped to general public Dec 2014 OpenBCI Bluetooth 4.0 Open hardware project. The 16-channel R&D setup consists of a 32bit Board and an 8-channel extension shield, known as the "Daisy" board.

Open-source projects[edit]

Emokit is an open-source Python library for reading out sensor data from the EPOC (Emotiv Systems) by Cody Brocious. It was built by reverse-engineering the encrypted protocol.[35] Emokit has been deprecated in favour of emokit.[36]

In 2011 Make magazine published an article on hacking NeuroSky headsets. In 2012 Hack a Day published an article on modifying NeuroSky headsets for sleep and dream research.

Open-source Matlab toolboxes such as EEGLAB, Fieldtrip, and the Neurophysiological Biomarker Toolbox (NBT) can be used to process data from the electroencephalography. The Fieldtrip toolbox also offers a real-time plugin.[37]

OpenVibe is a LGPL software platform (C++) to design, test and use BCI.[38] The software comes with an acquisition server that is currently compatible with many EEG device including Neurosky Mindset, Emotiv EPOC (Research Edition or above) and OpenEEG. The software is developed at INRIA.

Several open-source computer programs are also available from EPFL's CNBI project.[39][40]

The openEEG project[41] has developed several open hardware EEG devices.

OpenBCI [42] ran a successful Kickstarter crowd-funding campaign in January, 2014, and shipped its open-hardware signal acquisition boards to the public (and released its open-source software) in December. They then completed a second successful Kickstarter campaign in December of 2015 to fund the development of the next version of their 3D-printable EEG headset, a $99 signal acquisition board, and a tDCS that will be compatible with all of their existing biosensing boards.

Technology[edit]

All of the devices listed use electroencephalography except the Neural Impulse Actuator which only uses electromyography. Some use both electroencephalography and electromyography, such as the BrainBand MindWave, EPOC, and MindSet.

The OpenBCI board can acquire electroencephalography (EEG, electrical activity of the brain), electromyography (EMG, electrical activity of skeletal muscles), and electrocardiography (ECG or EKG, electrical activity of the heart) data.

References[edit]

  1. ^ "iwinks one the web". iwinks. 
  2. ^ "What is the retail cost?". iFocusBand. 
  3. ^ "How many sensors does the iFocusBand have?". 
  4. ^ "MindWave Store". Store.neurosky.com. Retrieved 2012-11-01. 
  5. ^ "MindWave". Store.neurosky.com. Retrieved 2012-11-01. 
  6. ^ a b "NeuroSky Technology". Company.neurosky.com. Retrieved 2012-11-01. 
  7. ^ "NeuroSky Do It Yourself". Neurosky.com. Retrieved 2012-11-01. 
  8. ^ NeuroSky Developers open source SDK
  9. ^ "Google Products MindFlex". Google.com. Retrieved 2012-11-01. 
  10. ^ a b c d "Neurosky Partners". Neurosky.com. Retrieved 2012-11-01. 
  11. ^ "Buy Epoc". Emotiv.com. Retrieved 2014-08-15. 
  12. ^ "Emotiv headset". Emotiv.com. Retrieved 2012-11-01. 
  13. ^ "Emotive Official Website". Emotiv.com. Retrieved 2012-11-01. 
  14. ^ "Emotiv SDK". Emotiv.com. Retrieved 2012-11-01. 
  15. ^ Emokit open source SDK
  16. ^ "Insight Detail". Emotiv.com. Retrieved 2014-08-15. 
  17. ^ a b "Emotiv Insight product sheet" (PDF). 
  18. ^ "Google Products Force Trainer". Google.com. Retrieved 2012-11-01. 
  19. ^ "NeuroSky Mindset". Store.neurosky.com. Retrieved 2012-11-01. 
  20. ^ "NeuroSky MindSet". Neurosky.com. Retrieved 2012-11-01. 
  21. ^ "NeuroSky Developer". Developer.neurosky.com. Retrieved 2012-11-01. 
  22. ^ Weigel, David. "Bowling With Brain Waves". Slate.com. Retrieved 2012-11-01. 
  23. ^ "Mindball Accessories". Mindball.se. Retrieved 2012-11-01. 
  24. ^ "Products | PLX Devices Inc - USA". Plxwave.com. Retrieved 2012-11-01. 
  25. ^ "Products | PLX Devices Inc - USA". Plxwave.com. Retrieved 2012-11-01. 
  26. ^ "Products | PLX Devices Inc - USA". Plxwave.com. Retrieved 2012-11-01. 
  27. ^ "MyndPlay Ltd". 
  28. ^ "MyndPlay Ltd". 
  29. ^ "What is the retail cost?". Interaxon. 
  30. ^ "How many sensors does the Muse have?". 
  31. ^ "MUSE ™ - Meditation Made Easy". Muse: the brain sensing headband. 
  32. ^ "OpenBCI 16-channel R&D Kit". OpenBCI Online Store. 
  33. ^ "OpenBCI 32bit Board Kit". OpenBCI Online Store. 
  34. ^ "OpenBCI 16-channel R&D Kit". OpenBCI Online Store. 
  35. ^ Python library for the Emotiv EPOC headset on Github
  36. ^ daeken/Emokit has been deprecated in favour of qdot/emokit on GitHub
  37. ^ "development:realtime – FieldTrip". 6 May 2015. 
  38. ^ "OpenViBE - Software for Brain Computer Interfaces and Real Time Neurosciences". 
  39. ^ "Software - CNBI". 30 September 2015. 
  40. ^ "Nissan teams up with EPFL for BMI-assisted driving - KurzweilAI". 
  41. ^ "OpenEEG project". 
  42. ^ "OpenBCI". 

External links[edit]