Model DSI 7 - Dry Electrode EEG Headset
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 the 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 300 Hz, Rechargeable Li-ion batteries allow continuous operation, 4-bit digital trigger input, Adjustable to fit a wide range of head sizes, 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)
- Neurofeedback
- Neuroergonomics
- Neuroeconomics / Neuromarketing
- Augmented cognition
- Brain-computer interfaces
- Biometrics
- Cognitive stress or workload monitoring
- Psychological Research
- Sports Peak-Performance training
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 cm 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 ear clips.
| Sensor Locations | 7 sensors at 10/20 locations (default): F3, F4, C3, C4, Pz, P3, P4 + Linked Ears - See customization options |
| Common-Mode-Follower | Pz is default reference (can be changed to LE in software) |
| Ground | 1 ground electrode |
| Amplifier/Digitizer | 16 bits, 7 channels |
| Analog/Digital Resolution | 10 m |
| Analog/Digital Converter | 16 bits |
| Sample | 300 Hz |
| Bandwidth | 0.003-150 Hz |
| Gain | 60 |
| Common Mode Rejection Ratio | >120 dB |
| Channel Cross-Talk | < -70 dB with sensors |
| Input Impedance (1Hz) | 47 Gohm |
| Input Bias Current | <25 pA |
| DC Offset Tolerance | +/-200 mV |
| Maximum Input Range | 10mV pk-pk |
| Noise (1-50Hz) | <3 uV peak-peak |
| Digital Inputs | 4-bit input |
| Run-time | >12 Hours |
| Wireless | Bluetooth |
| Wireless Range | 10 m |
| Headset weight | ~350 g |
| Headsize Fit | 52-62 cm circumference |
| Headset | Fixed sensors on spring-loaded arms and pods for sensor support |
| Notice | * Specifications subject to change, please contact us to obtain latest specifications |