CGX Dev Kit Manual
  1. Manuals
  2. Brands
  3. CGX Manuals
  4. Medical Equipment
  5. Dev Kit
  6. Manual

CGX Dev Kit Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
CGX A Cognionics Company
Dev Kit
This manual contains general operating instructions, precautionary measures,
maintenance instructions, and information for use of the CGX Dev Kit.
Please read this manual carefully and familiarize yourself with the controls and
accessories before using the product.
Note
This is an investigational device designed for research and development efforts.
•
It is not an FDA-approved medical device.
•
There are no known side effects from the use of this product.
•
Description
The Dev Kit is a portable development-
oriented, dry EEG system. The kit
includes an 8-channel amplifier and
individual leads terminating in snap
connectors. Also included are Drypad,
Flex, and HydroFlex sensors, and
a fabric headband for aid in sensor
placement.
Wireless technology allows the subject
to move about while real-time data is
collected and displayed.
EEG channels are sampled at a time
resolution of 500Hz and converted to
digital data at 24 bits of resolution.
The Dev Kit provides research-grade
signal quality and is ideally suited
for general-purpose EEG and ERP
research in laboratory and field
environments.

Advertisement

Table of Contents
loading

Related Manuals for CGX Dev Kit

Summary of Contents for CGX Dev Kit

  • Page 1 CGX A Cognionics Company Dev Kit This manual contains general operating instructions, precautionary measures, maintenance instructions, and information for use of the CGX Dev Kit. Please read this manual carefully and familiarize yourself with the controls and accessories before using the product.
  • Page 2 • Using accessories other than those supplied if exposed to ionizing radiation • with your Dev Kit system may result in in oxygen-rich environments (concentration • damage or diminished efficacy of the system. > 25% at 1 atm)
  • Page 3 — of scalp surface electrical potentials arising make an effective dry EEG from activity in the cortex. system. The Dev Kit is flexible and adaptable to a wide variety Conventional wet systems of custom EEG experiments. The eight sensor leads rely on electrolytic gels...
  • Page 4 Device Overview The Package Contains 1 Passive Ground Lead Wire 30 Skintact Sensors The Following Items 9 Active Lead Wires Headband 10 Flex Sensors Wall Charger Dev Kit Amplifier 10 Drypad Sensors Carrying Case Bluetooth Dongle 10 HydroFlex Sensors Manual Dev Kit with Headband Amplifier Active Lead Wires...
  • Page 5 Device Overview Amplifier Bluetooth Dongle Active Lead Wires Passive Ground Lead Wire Wireless amplifier High-speed receiver Active lead wire Passive lead collects signals dongle plugs into (3.5mm connector) wire (touchproof and transmits to your computer’s for EEG channels. connector) for Bluetooth Dongle. USB port. Ground. Drypad Sensor Flex Sensor HydroFlex Sensor Drypad sensors...
  • Page 6 Input The software will create a shortcut on your desktop. • 2. Charge the Internal Battery Amplifier Allow your Dev Kit to fully charge before each use. The device has a charging indicator light: Power Status Power Button Light The charging status light is red when the battery is •...
  • Page 7 CGX Dev Kit Discovered Devices. If you do not see the name CGX Dev Kit, remove and re-insert the dongle and restart the software. 1. First, click the device name in this window to select the Dev Kit 2. Then click Connect.
  • Page 8 Note: Reference and Ground contacts are essential to the functioning of the device. 5. Connect as many leads as desired to the Dev Kit and attach the sensor of your choosing to the end of each lead. It may require extra pressure to insert a sensor due to 6.

  • Page 9: Donning Instructions

    After properly positioning the sensors on the subject, obtain direct contact on all sensors before recording. Acceptable Bring up the impedance check in the CGX Data Acquisition software under the Channels tab. The impedance check presents a color-coded map of the sensors on the device,...

  • Page 10: Disposal Instructions

    Immediately turn off the system out and let the amplifier dry completely before resuming use. Disposal Instructions To protect the environment, always follow local law, rules, and policies regarding electronic and battery disposal. You may also return the device to CGX for proper disposal.
  • Page 11 Obtaining Clean EEG Data The most important aspect of EEG recording is that output data is only as good as the recording input. While algorithms exist to remove artifacts, poorly recorded data cannot be fixed in post processing. Recording good EEG data requires preparation of the participant for optimal sensor contact: 1.
  • Page 12 Understanding Readings Clean Data At Default Scale Traces are thin and deviate minimally from the axis. Blinks Eye blinks will generate muscle artifacts in the frontopolar locations (Fp1 and Fp2) and less so in frontal sensors (F3/F4, F7/F8), overshadowing brain activity in EEG recordings. Eye Movement Moving the eyes will generate muscle artifact in the forehead and front of the head.
  • Page 13 Understanding Readings Muscle Artifact: Jaw Clench Jaw clenching may affect most or all channels, especially if clenching hard. Light jaw clenching or tightness can be observed in F7/F8, T3/T4. Take note of any temporomandibular joint disorders: these can cause artifact without typical clenching. Muscle Artifact: Tongue Movement The tongue is a large polarized muscle, with the tongue’s tip negative with...
  • Page 14 Understanding Readings Muscle Artifact: Neck Tension Neck tension may affect channels on the back of the head, predominantly O1/O2, but also in parietal sensors (Pz/P3/P4, P7/P8). Subjects should be comfortably seated, with appropriate bracing at the back and neck. Avoid slouching. Headset Or Electrode Disruptions: Sensor Pops Brief disruptions in contact between sensor and scalp may cause “sensor pops”...
  • Page 15 To avoid power line artifacts, have subjects sitting at least 3 feet from power cords, plugged-in devices, and lighting or overhead fluorescent lights. The Dev Kit shields the sensors from environmental noise, but issues can still occur with poor skin contact.
  • Page 16 Understanding Readings Improper Setup: No Connected Reference There are a multitude of recording errors when the A1 reference earclip is not connected to the subject. The most common are: • Impedances match or nearly match at a low value but do not appear on the display or in the impedance head map.
  • Page 17 Understanding Readings Improper Setup: Reference Contact When the reference channel is touched or jostled, all channels will be affected. Avoid disrupting the Reference position during use. Improper Setup: Reference Disruption When the reference is disconnected, all channels will disconnect as well. Improper Setup: Ground Disruption If the ground has poor contact, all channels will be impacted.
  • Page 18 • Device Configuration information; changing the settings will not change the configuration of the device. If you need to change device configuration, contact support at CGX. Data Recording Click to open a file dialog. Select the desired • Record location, file name, and file type. (CSV files have a time stamp built in).

  • Page 19: Software Reference

    Software Reference Display Tab Scaling: Headset The display tab controls scaling and other viewing sets the x axis time window. By default, it is set to 2 • Time parameters for the signals. seconds. sets the y axis vertical gain for the EEG • Scale (EEG) channels on the head.

  • Page 20: Channels Tab

    Software Reference Channels Tab The bottom half is a graphical map of sensor contact The top half of the Channels tab contains a table quality. Red circles indicate poor contact, whereas light displaying information about green circles indicate acceptable contact. Dark green each channel in the system circles indicate ideal contact.
  • Page 21 Software Reference Markers Tab Received Triggers The box shows all of the received triggers chronologically. • If no trigger is in range, value received will be 47831 (in • hex: 0xBAD7). This button will clear all of the triggers in the • Clear History box.

  • Page 22: Status Tab

    (not applicable) • AIM Sensors Battery status is displayed at the bottom of • Battery Level this tab. The Dev Kit only uses Batt: A.

  • Page 23: Specifications

    0-131 Hz with true DC Export data to EDF, BDF, or Bandwidth coupling. Data Export CSV. Store in provided carrying Compatible case in temperature CGX Wireless Stimtrigger. With Storage and humidity controlled environments. Internal Li-Ion Battery Battery Type 3-axis accelerometer Battery Life 8 hour battery life.
  • Page 24 San Diego, CA 92121 CGX A Cognionics Company 8445 Camino Santa Fe, #104 Imported By: San Diego, CA 92121 Brain Products GmbH 858-864-9400 Zeppelinstrasse 7 Sales@CGXSystems.com 82205 Gilching, Germany www.brainproducts.com Covered by Patents issued and/or pending under license from Cognionics, Inc US9314183B2, US9615761B2, US9935726B2, US8798710B2, and International patents. © 2020 CGX, LLC. Doc: DK080120...

Table of Contents