EEG Headsets
Clean. Fast. Mobile
DSI-Hybrid-EEG+fNIR
The DSI-Hybrid EEG + fNIR headset is a complete, research-grade, combined wireless EEG and fNIR system designed for synchronized recording of the brain’s electrical activity and its hemodynamic response or blood-oxygen-level dependent (BOLD) response. The EEG and fNIR sensors are arranged to allow simultaneous and superimposed recordings at locations distributed on the scalp.
Active dry electrode EEG sensor with 2 stage amplification and digitization in
headset delivers research-grade EEG signal (>90% correlation with
conventional wet electrode systems)
Triple frequency ultra-bright LED emitters and amplified detectors offer
reliable through hair fNIR
fNIR optodes arranged around dry electrode EEG sensors for co-registered
measurement of EEG and BOLD
Patented artifact resistant electro-mechanical designs enable ambulation in
naturalistic environments
Short- and Long- light paths fNIR measurements empower integrated
algorithms for regression of Mayer wave artifact
Description
Practical EEG and fNIR
Fully integrated and synchronized, complete EEG and fNIR system in a single device
Ideal for combined hemodynamic and electrophysiological research
Autodetection of optimal emitters and detectors to use for each fNIR location
Raw fNIR signals converted to changes in concentration of oxygenated and deoygenated hemoglobin (BOLD)
Rapid set-up and clean-up time
Adjustable to fit a wide range of head sizes (52-62 cm)
Powerful Options
8 channel locations with combined EEG and fNIR for concomittant measurement of EEG and fNIR
Provides excellent temporal precision from EEG combined with spatial precision from fNIR.
Wireless triggering for synchronization of multiple devices (hyper-scanning) and ambulatory ERPs
Bluetooth or wired-USB transmission
Adjustable power settings for each emitter LED wavelength
Applications
The DSI-Hybrid-EEG+fNIR’s practicality, portability, and high signal quality opens the door to taking numerous applications that were previously limited to lab environments to more naturalistic settings. Such applications include:
Neuroscience research
Neurovascular Coupling
Neurofeedback
Neuromarketing
Biomarkers
Synchronized Interfaces
Eye-tracking
Motion capture
NeuroGuide / BrainSurfer
EEGLAB / ERPLAB /BCILAB
Mensia Neuro RT / OpenVibe
TEA Ergo CAPTIV
BCI2000
E-Prime
Inquisit
Presentation
Intuitive Software Included
DSI-Streamer
Signal quality metrics
Montages
ERPs
File formats: EDF, CSV (filtered and raw)
Streaming via TCP/IP socket
C-based API for Windows/Mac/Linux
LSL streaming
Product specifications
| fNIR emitters and detectors |
4 pairs per sensor |
| Emitter Frequencies |
760, 808, 850 nm |
| fNIR Sampling Rate |
15 Hz |
| fNIR Bandwidth |
40 nm |
| Sensor Locations |
8 sensors at 10-20 locations: Fp1, Fp2, C3, C4, T7/T3, T8/T4, , O1, O2, A1, A2 |
| Common-Mode-Follower |
Pz is default reference (can be changed to LE in software) |
| Ground |
Fpz |
| Amplifier/Digitizer |
16 bits, 8 channels |
| Analog/Digital Resolution |
0.317 uV referred to input |
| 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) |
<1 uV peak-peak |
| Digital Inputs |
8-bit input |
| Run-time |
4h |
| Wireless |
Bluetooth |
| Wireless Range |
10 m |
| Headset weight |
~513 g |
| Headsize Fit |
52-62 cm circumference |
| Notice |
* Specifications subject to change, please contact us to obtain latest specifications |
