The Discovery 24E is a 24-channel EEG and DC amplifier that is an evolution of the technology used in the 2E and 2EA (Atlantis) series of EEG biofeedback devices. It will be available for field testing in the Fall of 2008. It is fully compatible with QEEG systems such as NeuroGuide, Loreta, SKIL, and WinEEG, and incorporates BrainMaster training capabilities including amplitude and connectivity training, including Live Z-Score training.
The device specifications are as follows:
24 channels
Electrode cap: Standard “Lexicor” or equivalent, with Fpz and Oz optionally added
Channels 1 – 22 referenced to A1
A2 acquired separately, referenced to A1
Channels 23, 24 separate differential amplifiers with separate active and reference inputs
Channels 23, 24 connectors: “Atlantis” 2-channel connector with cable & standard touch-proof leads
A/D accuracy: 24 bits; resolution 0.01 microvolts EEG, 0.4 microvolts DC
Input range: +/- 100 millivolts EEG, +/- 4 volts DC
Input impedance > 1000GOhms
Common-mode Rejection Ratio (CMRR) > 110 dB
Amplifier bandwidth: 0.000 – 100 Hz
EEG channel bandwidth: 0.43 – 80 Hz
DC offset signal bandwidth: 0.000 – 2 Hz
Input noise < 1.0 microvolt RMS (0.43 – 60 Hz)
Sensor contact quality monitored via. offset voltage
Sampling Rate: 512 samples/second
Data rate to PC: 256 samples/second
Connection to PC: USB, optically and magnetically isolated
Software Supported (Live Acquisition) BrainMaster Discovery, NeuroGuide Live
Software Supported (Analysis via EDF Files): NeuroGuide, SKIL, WinEEG, Persyst, EDFBrowser, other
