| Scan
NuAmps Express |
Base Configuration Description:
The SCAN NuAmps Express is a fully functional research grade 40
channel digital EEG and ERP recording system, which utilizes the
full power and capabilities of SCAN. This system will allow you
to record EEG and conduct spectral analysis, coherence and
topographic mapping. Evoked potentials (EP) and event related
potentials (ERP) can be recorded, averaged and processed in
real-time. Event related spectral analysis, coherence and time
frequency measures can be computed. Amplitude and latency
measures, peak detection and comparative statistics are
provided. Additionally, SCAN provides a full research grade data
proceeding tool to remove noise and artifacts or decompose
complex signals. Please see the SCAN Features and Transform list
for the full capabilities of SCAN.
SCAN allows for automation of acquisition and data processing.
Real time scalp impedance measurement is included, ensuring fast
and simple set up times. All acquired data can be exported for
subsequent analysis and a direct import to MatLab is provided. |
| Specifications: |
- 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.
- 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.
- 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.
- 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.
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| Configuration: |
SUPPLIED COMPONENTS:
Scan
Acquisition and Analysis Software
NuAmps
40 Channel DC Amplifier
STIM2Acquisition
Software
Hardware/Computer Requirements
Cable/Electrode Connections:
The SCAN NuAmps Express system requires two computers to be
fully operational, one for SCAN and the NuAmps and the other for
the STIM2 system. These computers are not included in the
SCAN NuAmps Express Package price, but may be purchased
separately. In typical configurations these computers will be
laptops running under the Windows XP Professional operating
system. Minimum specifications for the computers are Pentium 4
processors, 256 MB RAM, and 64 MB video RAM. The computer must
support USB and USB2 connections.
The connections to the equipment are as follows: The laptop
running SCAN connects to the NuAmps via a USB connection. The
STIM2 computer connects to the NuAmps via a DB25 pin connector
and pigtail converter cable. All of the above cables are
included with the SCAN NuAmps Express Package. If the computers
are connected to the AC wall outlet, an isolation transformer
is required to meet the FDA requirements for leakage current
of patient connected devices.
The NuAmps amplifier is designed to record from Sintered Ag/AgCL
electrodes. Either individual or cap based electrode systems can
be used. Electrodes are sold separately. |
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+ 55 11 3662-0762
+ 55 11 3825-7311
