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NuAmps : The NuAmps is a 40 channel
monopolar digital amplifier, which connects to the computer via USB.
It was designed as a portable system that obtains power from a
laptop computer. Computers powered by the AC wall power supply
require the optional isolation transformer to meet FDA patient
safety guidelines for leakage current. The NuAmps is designed to
work with Sintered Electrodes which provide the highest quality and
most durable electrical interface.
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The NuAmps has 40 monopolar channels
for recording, these can be accessed via the high density cap
connector or the individual Touch Proof connectors on the face of
the amplifier. The SCAN software is capable of computing bipolar
derivations and different referencing schemes. Reference and ground
channels are included in the count of the 40 channels. In additional
to EEG and ERP, other physiological measure can be recorded such as
ECG, EMG and EOG. NuAmps are a DC amplifier with a maximum sampling
rate of 1000 Hz.
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The NuAmps has an 8 bit stimulus and
a 4 bit response input that allows integration of the STIM2 system
triggers for recording ERPs. The NuAmps does not have the facility
to support high level signals from external devices. Only TTL inputs
are supported.
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The NuAmps are a digital amplifier
and does not need to be calibrated; however, the optional Pocketrace
signal generator can be used to verify calibration.
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SCAN Software: The SCAN software
included with the SCAN NuAmps Express package is a fully functioning
version of the SCAN software. However, due to the dramatic price
reduction of SCAN for this package, the NuAmps must be connected
during the operation of the software and no software key is
provided. The SCAN license has the same warranty and upgrade
policies as any other SCAN license. Other promotions and pricing
specials do not apply to the SCAN license packaged with the Express
system.
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STIM2 Software: The STIM2 Software
Only is provided with this package. STIM2 runs under the Windows XP
Professional OS and its timing and accuracy is subject to the
limitations of the Windows operating system. Neuroscan makes no
claims as to the accuracy of stimulus presentation, trigger timing
and audio calibration of the STIM2 Software Only system. For details
about the capabilities of the STIM2 software, please see the STIM2
section of our webpage. |
