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The platinum standard for brain-activity recordings

The NeuroPort™ system is a highly configurable, easy to use, multichannel data acquisition system used for recording and monitoring brain electrical activity. It can record both high-frequency (action potentials) and low-bandwidth (EEG) signals simultaneously, while also providing clinicians with the tools to analyze them.

The system’s Neural Signal Processor provides real-time processing for up to 128 electrodes, 16 auxiliary analog channels and individual TTL or strobed-word experiment events. Multiple systems can be synchronized for more channels. The Front-End Amplifier in turn amplifies, filters and digitizes neural signals before converting them to a single, multiplexed optical output.


NeuroPort™ System benefits

Hardware benefits

  • Compatible with traditional surface EEG/EMG/EKG electrodes, ECoG grids (macro and micro), individual metal microelectrodes, microelectrode arrays and planar silicon probes

  • Ability to record and monitor signals from high-impedance electrodes

  • Fiber-optic link for reduced system noise

  • Real-time processing of spikes, field potentials and other physiological signals

  • Scalable up to 512 channels

  • Flexible I/O options for synchronizing with behavior, stimulus and video systems

Software benefits

  • Continuous recording of spikes and EEG signals (16 bit, 30 kHz)

  • Per-channel selection of digital filter and sampling rate

  • Digital noise cancellation

  • Interface to NeuroExplorer, Spike2, MATLAB, C/C++ and other third-party software

  • Adaptive spike detection and 3D spike sorting

  • Remote control of data acquisition and storage


NeuroPort™ System setups

The NeuroPort System is used in a wide variety of research settings involving human patients including:
Brain-Machine Interface (BMI)
Epilepsy monitoring with ECoG
Epilepsy monitoring with microelectrodes


Compatible products


NeuroPort™ System specifications

NeuroPort™ System Front-End Amplifier/Digitizer

Number of inputs 32 to 128 electrodes in banks of 32
Differential configuration Each input amplified with respect to the common reference in each bank
AC input range ± 8.191 mV
AC input conversion 16-bit resolution at .25 μV/bit
Common mode rejection input range ± 3.0 V between inputs and ground
Common mode rejection >90 dB at 50/60 Hz
High pass filter 1st-order 0.3 Hz (full-bandwidth mode)
Low pass filter 3rd-order Butterworth 7.5 kHz
Input referred noise < 3.0 μVrms (14 μVp-p) at full bandwidth
Input impedance >10 GΩ || 3 pF
Input bias/leakage ± 5 pA typical, +/- 20 pA max
Channel crosstalk < 1 LSB for all combinations
Maximum input voltage ± 5.0 V between inputs and ground
Input connection 34-pin 2 mm male header for each bank
Ground connection 4.4 banana jack/binding post
Output connection MTRJ digital fiberoptic port
Headstage power output ± 5.0 V, up to 150 mA for powering optional headstages
Power supply Five-channel external power supply with sequencing, 120 VAC/60 Hz input or 220 VAC/50 Hz input
Dimensions 110 mm (H) x 42 mm (W) x 186 mm (L)

Neural Signal Processor with Experiment I/O

Digital signal processing Adaptive noise cancellation and sixth-order high/band/low pass digital filtering; separate digital filters for simultaneous field potential and spike processing for up to 144 channels
Front-end input MTRJ digital fiber optic port
Experiment analog inputs Sixteen ± 5.0 V, 16-bit analog inputs for experiment or neural signals (BNC)
Experiment analog outputs Four ± 5.0 V, 16-bit analog outputs (BNC); two line-level audio outputs (BNC + 3.5 mm)
Experiment TTL and strobed-word inputs One 16-bit input port (DB-37) with individual or strobed-word event detection
Experiment digital outputs Four single-bit digital outputs (BNC), synchronization TTL output (BNC)
Experiment serial input RS 232 port (DB-(9M), 115 kbps)
PC interface 1 Gigabit Ethernet
Power supply Three-pin PC power connector (110-240 VAC, 50-60 Hz)
Dimensions 88 mm (H) x 325 mm (W) x 425 mm (L)
Weight 6.8 kg
Mounting options Table-top rubber feet or 2 U slot in 19-inch instrument rack


Minimum computer requirements (not included)

2 GHz Intel® Core™ 2 Duo or equivalent AMD® processor; gigabit Ethernet port; 250 GB hard drive; 4 GB RAM; Windows 7 (32- or 64-bit)

Instruction Manual


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