Betabot: Improving page with detailed specifications, history, features, and references

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{{Device Infobox
|name = NextMind Dev Kit
|image =
|VR/AR = [[Virtual Reality]] / [[Augmented Reality]] Accessory
|Type = [[Brain-Computer Interface]]
|Subtype = [[Neural Interface]], [[BCI Dev Kit]]
|Platform = Windows, macOS, VR/AR headsets
|Creator = [[NextMind]]
|Developer = [[NextMind]]
|Manufacturer = [[NextMind]]
|Announcement Date = CES 2020 (January 2020)
|Release Date = December 2020
|Price = $399
|Website = https://www.next-mind.com/ (defunct - acquired by Snap)
|Versions = NextMind Dev Kit
|Requires = Windows 10, macOS, or compatible VR/AR headset
|Predecessor = None
|Successor = None (company acquired by Snap Inc. 2022)
|Operating System = Windows 10, macOS
|Chipset = Custom neural processing
|CPU = N/A (host-processed)
|GPU = N/A (host-processed)
|HPU =
|Storage = N/A
|Memory = N/A
|SD Card Slot = No
|Display = N/A (input device)
|Subpixel Layout = N/A
|Peak Brightness = N/A
|Resolution = N/A
|Pixel Density = N/A
|Refresh Rate = N/A
|Persistence = N/A
|Field of View = N/A
|Horizontal FoV = N/A
|Vertical FoV = N/A
|Average Pixel Density = N/A
|Peak Pixel Density = N/A
|Foveated Rendering = N/A
|Optics = N/A
|Ocularity = N/A
|IPD Range = N/A
|Adjustable Diopter = N/A
|Passthrough = N/A
|Tracking = Visual cortex neural tracking
|Tracking Frequency = Real-time
|Base Stations = N/A
|Eye Tracking = No (brain-based)
|Face Tracking = No
|Hand Tracking = No
|Body Tracking = No
|Rotational Tracking = No
|Positional Tracking = No
|Update Rate = Real-time
|Tracking Volume = N/A
|Play Space = Seated/standing
|Latency = Low latency neural decoding
|Audio = N/A
|Microphone = N/A
|3.5mm Audio Jack = N/A
|Camera = N/A
|Connectivity = USB, Bluetooth
|Ports = USB (charging/data)
|Wired Video = N/A
|Wireless Video = N/A
|WiFi = N/A
|Bluetooth = Yes
|Power = Rechargeable battery
|Battery Capacity = Internal
|Battery Life = Hours
|Charge Time = USB charging
|Dimensions = Back-of-head form factor
|Weight = Lightweight
|Material = Flexible sensor array
|Headstrap = Clip-on (hat/headband/VR headset)
|Haptics = N/A
|Color = White
|Sensors = 8 dry EEG electrodes
|Input = Visual cortex neural signals
|Compliance = Consumer electronics
}}

The '''NextMind Dev Kit''' was a non-invasive [[brain-computer interface]] (BCI) device developed by Paris-based startup [[NextMind]], announced at CES 2020 and shipping from December 2020 at $399. Representing a breakthrough in consumer-accessible neural interface technology, the NextMind sensor used eight dry EEG electrodes positioned at the back of the head to detect neural activity from the visual cortex, translating the user's active visual focus into real-time digital commands through machine learning algorithms. Unlike traditional EEG systems requiring conductive gel, NextMind used dry electrodes requiring only skin contact, making it practical for everyday use. The device was designed to fit into the back of a hat, headband, or clip onto VR/AR headsets including Oculus, HTC Vive, and HoloLens, enabling mind-controlled interaction in virtual environments. The Dev Kit included the NextMind Sensor, NextMind Engine (real-time ML algorithms), and NextMind SDK with Unity resources, tutorials, and demo applications. Through a calibration process tracking visual engagement, the system learned to recognize when the user's brain was engaged in "active, visual focus" on specific on-screen elements, enabling hands-free selection and control. In March 2022, NextMind was acquired by [[Snap Inc.]] (Snapchat's parent company), with the team reportedly working on future AR projects; following the acquisition, the NextMind Dev Kit is no longer available for purchase.

== History and Development ==

=== NextMind Origins ===
Company background:
* Founded Paris, France
* Neurotechnology startup
* Consumer BCI focus
* Visual cortex specialization

=== CES 2020 Announcement ===
Product reveal:
* January 2020 debut
* $399 price point
* Developer targeting
* Industry attention

=== December 2020 Shipping ===
Commercial release:
* Dev Kit availability
* Developer orders fulfilled
* Global shipping
* SDK access

=== March 2022 Snap Acquisition ===
Company acquisition:
* Snap Inc. purchase
* AR integration plans
* Team transition
* Product discontinuation

== Design Philosophy ==

=== Non-Invasive BCI ===
Brain interface approach:
* External sensor
* No surgery required
* Wearable device
* Consumer-safe

=== Dry Electrodes ===
Usability innovation:
* No conductive gel
* Skin contact only
* Practical daily use
* Quick setup

=== Visual Cortex Focus ===
Neural targeting:
* Occipital lobe sensing
* Visual processing area
* Consistent signals
* Reliable detection

=== VR/AR Integration ===
Platform compatibility:
* Headset mounting
* Hands-free control
* Immersive integration
* Enhanced interaction

== Technology ==

=== EEG-Based Sensing ===
Neural detection method:
* '''Type''': Electroencephalogram
* Non-invasive
* Voltage fluctuation measurement
* External skull reading

=== Eight Electrodes ===
Sensor array:
* '''Electrodes''': 8 prong-like sensors
* Visual cortex coverage
* Brain wave detection
* Signal acquisition

=== Dry Electrode Technology ===
Contact method:
* No gel required
* Direct skin contact
* Hair penetration design
* Practical deployment

=== Visual Cortex Decoding ===
Neural target:
* Occipital lobe focus
* Visual processing signals
* Attention detection
* Focus recognition

== System Components ==

=== NextMind Sensor ===
Hardware device:
* 8-electrode array
* Back-of-head placement
* Secure positioning
* Free movement

=== NextMind Engine ===
Processing system:
* Real-time ML algorithms
* Neural signal transformation
* Command generation
* Low latency processing

=== NextMind SDK ===
Developer resources:
* Unity integration
* Tutorials included
* Demo apps
* Code building blocks

== How It Works ==

=== Calibration Process ===
Setup:
* Watch on-screen animation
* System learns individual signals
* Visual engagement baseline
* Personal optimization

=== Active Visual Focus ===
Interaction model:
* Focus on target element
* Brain engagement detected
* Neural pattern recognition
* Command triggered

=== Mind Control Interaction ===
Use pattern:
* Look at selection target
* Engage visual attention
* System detects focus
* Action executed

== Platform Compatibility ==

=== Operating Systems ===
Supported platforms:
* '''Windows''': 10+
* '''macOS''': Supported
* Desktop/laptop use
* Cross-platform

=== VR/AR Headsets ===
Compatible devices:
* Oculus (Quest, Rift)
* HTC Vive
* Microsoft HoloLens
* Other major headsets

=== Mounting Options ===
Wearing configurations:
* Back of hat
* Headband mount
* VR headset clip
* Flexible positioning

== Applications ==

=== VR Interaction ===
Virtual reality:
* Hands-free selection
* Menu navigation
* Object manipulation
* Immersive control

=== Gaming ===
Entertainment:
* Mind-controlled games
* Alternative input
* Accessibility gaming
* Novel interaction

=== Accessibility ===
Assistive technology:
* Motor impairment aid
* Alternative input method
* Hands-free computing
* Inclusive technology

=== Research ===
Scientific use:
* BCI development
* Neuroscience research
* HCI studies
* Academic applications

== Developer Kit Contents ==

=== Included Items ===
Package contents:
* NextMind Sensor
* Mounting accessories
* USB cable
* Documentation

=== SDK Resources ===
Software included:
* Unity plugin
* Tutorials
* Demo applications
* Code examples
* API documentation

== Snap Inc. Acquisition ==

=== March 2022 ===
Acquisition details:
* Snap Inc. purchase
* Team transition
* Technology acquisition
* AR integration plans

=== Post-Acquisition ===
Current status:
* Dev Kit discontinued
* Team working on AR
* Technology integrated
* Future Snap products

== Comparison with Neural Interfaces ==

{| class="wikitable"
|-
! Feature !! NextMind !! Emotiv Insight !! Muse 2 !! OpenBCI
|-
| Type || Visual cortex BCI || Multi-channel EEG || Meditation EEG || Open-source EEG
|-
| Electrodes || 8 (dry) || 5 (semi-dry) || 4 (dry) || 8-16 (gel/dry)
|-
| Target Area || Visual cortex || Full brain || Frontal/temporal || Configurable
|-
| Primary Use || Mind control || Research/wellness || Meditation || Research
|-
| VR Compatible || Yes || Limited || No || Limited
|-
| SDK || Unity || Multiple || Mobile || Open-source
|-
| Price || $399 || $299-$499 || $249 || $200-$500
|-
| Status || Discontinued || Active || Active || Active
|}

== Strengths and Limitations ==

=== Strengths ===
* Non-invasive brain-computer interface
* Dry electrodes (no gel required)
* Real-time neural decoding
* VR/AR headset compatible
* $399 accessible price point
* Unity SDK with tutorials
* Windows + macOS support
* Visual focus-based control
* Low latency response
* Consumer-practical form factor

=== Limitations ===
* Discontinued (Snap acquisition)
* Visual cortex only (limited commands)
* Calibration required per user
* Signal reliability varies
* Learning curve for users
* Limited command vocabulary
* Environmental interference
* Hair type affects contact
* Developer kit only (not consumer product)
* No longer available for purchase

== Technical Specifications Summary ==

{| class="wikitable"
|-
! Specification !! Details
|-
| Type || Non-invasive brain-computer interface
|-
| Technology || EEG (electroencephalogram)
|-
| Electrodes || 8 dry electrodes
|-
| Target Area || Visual cortex (occipital lobe)
|-
| Platforms || Windows 10, macOS
|-
| VR/AR || Oculus, Vive, HoloLens compatible
|-
| SDK || Unity (tutorials + demos)
|-
| Connection || USB, Bluetooth
|-
| Price || $399
|-
| Status || Discontinued (acquired by Snap 2022)
|}

== See Also ==
* [[NextMind]]
* [[Brain-Computer Interface]]
* [[EEG]]
* [[Neural Interface]]
* [[Snap Inc.]]

== References ==
{{Reflist}}

[[Category:Devices]]
[[Category:Brain-Computer Interface]]
[[Category:Neural Interface]]
[[Category:VR Accessories]]
[[Category:NextMind]]
[[Category:Snap Inc.]]
[[Category:Discontinued Products]]
[[Category:2020s Wearables]]

NextMind - Revision history

Betabot: Improving page with detailed specifications, history, features, and references