g.Nautilus PRO is a CE-certified and FDA cleared wearable EEG headset to record brain activity in medical and clinical environments. It’s available with prefixed 8/16/32 dry or wet EEG electrodes for faster montage. g.Nautilus PRO comes with g.SAHARA active dry EEG electrodes or g.LADYbird active wet EEG electrodes.
|g.SAHARA active dry EEG electrodes|
|g.LADYbird active wet EEG electrodes|
|8/16/32 channels wearable EEG with 3-axis accelerometer|
|24-bit accuracy at 500 Hz sampling rate|
|2.4 GHz digital transmission, range: 10 meters indoor|
|10 hours continuous recording and 2-3 hours charging|
|Internal impedance check with active electrodes for g.LADYbird electrodes|
|A new benchmark in usability|
|The only wearable headset with active EEG electrodes|
|Waterproof device with contactless charging|
|Full software environment|
|CE certified and FDA cleared medical EEG headset|
|Weight||< 110 g without electrode grid|
|Size||78 (L) x 60 (W) x 26 (H) mm|
|Color||8ch RED, 16ch PURPLE, 32ch BLUE, CSP16mB BLACK|
|Sensitivity||±2.25 V, ±1.125 V, ±750 mV, ±562,5 mV, ±375 mV, ±187.5 mV (software selectable)|
|Interface||Wireless 2.4 GHz ISM band|
|Digital inputs||8 digital trigger inputs at Base Station|
|Supply||Built-in lithium ion battery, runtime > 10 h with 32 channels, inductive charging according to the QI standard of the Wireless Power Consortium|
|Amplifier type||Real DC coupled|
|32 × ADC||24 Bit (1.024 MHz internal sampling per channel)|
|Noise level||< 0.6 µV RMS between 1 and 30 Hz (at highest input sensitivity)|
|Input channels||32 mono-polar / 16 bi-polar channels with GND and REF (software selectable)|
|Input impedance||DC > 100 MOhm|
|Certification and Standards||CE certified and FDA cleared medical device IEC60601-1 3rd, IEC60601-1-2, IEC62304, IEC60601-2-26, ISO 14971 10993-1, 62366, 2010-2012 IEEE Recommended Practice for Neurofeedback Systems|
REHABILITATION OF THE BRAIN
g.Nautilus PRO can be used for stroke rehabilitation, where patients perform different movements (e.g. hand movement, leg movement, …). Therefore, it is very important to record artifact-free EEG signals from the headset. Active EEG electrodes are mounted in a g.GAMMAcap already to quickly start recording brain activity. Studies have shown that BCI performance in experiments performed with active electrodes is superior to passive electrodes.
MEASURING EMOTIONAL RESPONSE
Dolby Laboratories is widely known for producing great sound in cinemas. Within their research, Dolyb Labs use g.Nautilus PRO wearable EEG device to study emotional responses of their audiences while they are watching videos. The scientists at Dolby Labs try to better understand what makes the audience engaged, what makes their skin blush, increase their heart-rate or give them goose bumps.
RECORDING EEG DURING TMS AND TDCS
Brain activity can be recorded with g.Nautilus PRO while tDCS stimulation is applied. Also, TMS stimulations can be done during EEG recordings. A post-processing artifact removal algorithm integrated in g.BSanalyze software robustly eliminates the discharge artifact of TMS and tDCS within a few milliseconds.
Patients who suffer from disorders of consciousness (DOC) usually lay in bed. They mostly are unresponsive or do sudden movements. For these reasons, a wireless and wearable EEG headset such as g.Nautilus PRO is easier to mount than a wired EEG recording device. This reduces the risk of pulling on the EEG electrodes and degrading both EEG quality and the clinical assessment. g.tec’s studies with DOC patients have shown that wearable EEG headsets reduce data loss due to artifacts. This is important where clean brain signals are very difficult to acquire. g.Nautilus PRO are available with 8/16/32 active EEG electrodes and can be mounted pretty fast. Therefore, the headset is a perfect match for brain assessments with DOC or ADHD patients who have limited brain recording time.
UNLIMITED POSSIBILITIES OF WEARABLE EEG
Wearable EEG headsets are becoming increasingly important in medical and clinical environments because more and more studies are conducted in the field. For these reasons, g.tec developed different versions of g.Nautilus wearable EEG headsets. Their designs are tiny, lightweight, wireless and set a new standard of usability. The EEG amplifier is attached to g.GAMMAcap which allows completely free movements. In combination withg.SAHARA active dry or g.GAMMAsys active wet EEG electrode technology, researchers get top quality recordings.
“We have several ongoing studies. One of these studies is to extend human arm control to new approaches that control more than two arms with the help of brain-computer interfaces.”Hiroshi Ishiguro, PhD - Intelligent Robotics Laboratory, Japan
“g.Nautilus wireless EEG amplifiers allow us to investigate freezing of gait in Parkinson’s disease, a dangerous symptom for the aging population as it can lead to falls. We can synchronize the EEG signals with VICON motion capture data seamlessly, without adding extra burden on our patients such as backpacks, or wired in hardware following them.”Aysegul Gunduz, PhD - University of Florida, USA
“We have used the g.USBamps for approximately four years now and the quality of the signals surpasses our greatest expectations. Last year we also invested in the g.Nautilus system and have been able to move from the more stringent laboratory conditions to the real world settings where BCIs find their applications. I would highly recommend both for anyone involved in BCI research.”Natalie Mrachacz-Kersting, PhD - Aalborg University, Denmark