DSI-7

Features

The DSI-7 * is a research-grade wireless dry electrode EEG headset designed for ultra-rapid application of 7 sensors at locations corresponding to the 10-20 International System. Its main features include:

  • Self-donned and ready to record EEG in under 1 minutes
  • Comfortable for wearing continuously over 8 hours
  • Portable design suitable for light ambulation in office or lab environment
  • 7 sensors positioned at choice of F3, F4, C3, C4, Pz, P3, P4 locations of the 10-20 International System
  • Linked-Ears earclip mounted active sensors
  • Continuous impedance monitoring
  • BlueTooth wireless transmission with sampling at 300Hz
  • Rechargeable Li-ion batteries allow continuous operation
  • 4-bit digital trigger input
  • Adjustable to fit a wide range of headsizes
  • CUSTOMIZABLE SENSOR LOCATIONS (contact us for custom requests)

* The DSI-7 replaces the DSI-6 prototype system (most information about DSI-6 and tutorial videos are applicable to DSI-7)


Applications

The DSI-7's practicality, portability, and high signal quality opens the door to taking numerous applications that require rapid and non-intrusive EEG recording. Such applications include:

  • Neurofeedback
  • NeuroErgonomics
  • NeuroEconomomics / NeuroMarketing
  • Augmented Cognition
  • Brain Computer Interfaces
  • Biometrics
  • Cognitive Stress or Workload Monitoring
  • Psychological Research
  • Sports Peak Performance Training

Child-Sized Version: DSI-7-C

The DSI-7's practicality, robustness to motion artifacts, high signal quality, and unsurpassed comfort beckoned for a version suitable for children.

And, thus, by popular demand, we have developed a smaller version of our DSI-7: The DSI-7-C, which is designed to comfortably and accurately position the dry sensors on heads 48-54 cms in circumference, thus fitting >90% of male children 3-7 years of age, and >90% of females 4-9 years old. (The DSI-7 optimally fits 54-62cm)

This unit is thus an excellent complement to a DSI-7, or can be purchased separately, as the child-sized version is a stand-alone unit, and includes its own integrated amplifiers, digitizers, and 7 sensors on the head at the International 10/20 System locations, as well as 2 earclips.

So please ask us about our special bundle pricing.

 

DSI-7 Specifications

Features and Specifications

Specifications

DSI-7
Sensor Locations Seven (7) sensors at fixed locations of theInternational 10/20 System locations:
F3, F4, Cz, C3, C4, Pz, P3, P4 + Linked Ears

Common-Mode-Follower

One (1) Common Mode Follower Sensor at Pz is default reference (can be changed to LE in software)
Ground One (1) ground electrode at the last remaining location
Headset

Easy to don, comfortable, and long-term wearable headset assembly with spring-loaded arms and pods for sensor support.
Good for easy rapid use in office or laboratory environment.

Amplifier/Digitizer

One (1) 7-channel amplifier and digitizer
Wireless BlueTooth
Run-time >12 hours
Headsize fit 52-62cm circumference
Headset weight ~350g
Wireless range: 10m
Digital Inputs: 4 bit input
Analog/Digital Converter: 16 bits
Analog/Digital resolution: 0.317 uV referred to input
Sample Rate: 300 Hz
Bandwidth: 0.003-150Hz
Gain: 60
Common mode rejection ratio: > 120dB
Channel Cross-talk: < -70dB with sensors
Input Impedance (1Hz): 47Gohm
Input bias current: <25pA
DC offset tolerance: +/-200mV
Maximum input range: 10mV pk-pk
Noise (1-50Hz): <3 uV pk-pk

* Specifications subject to change, please contact us to obtain latest specifications