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产品名称Plexon OmniPlex软件

CategoryPlexon OmniPlex神经数据采集系统
技术参数

  The OmniPlex® Neural Recording Data Acquisition Systems rely on two important software programs: PlexControl, which is the main user interface, and OmniPlex Server, known as the system’s “software engine”. Together, they are referred to as the OmniPlex Software

Product description
Parameters
产品概要
技术参数

OmniPlex Server

  The OmniPlex Server visually displays each of the various hardware devices (e.g., headstages, amplifier) and software modules (e.g., spike and LFP separators, thresholding, sorting) of the system. It acquires data from the OmniPlex chassis and amplifiers, sends commands to those devices, and implements the software digital signal processing (DSP) for OmniPlex’s filtering, spike detection and spike sorting functions. OmniPlex Server is based on a modular, extensible framework – or topology – hardware and software devices, which are interconnected in a dataflow topology that utilizes a topology wizard to enable users to easily define custom configurations without tedious low-level editing.

PlexControl

  PlexControl is the powerful online spike sorting software for the OmniPlex System that has a flexible and customizable main user interface. The software represents the next generation in signal visualization and easy-to-use spike waveform classification methods, and allows the researcher to interact with the system. It features easy-to-use signal visualization, spike detection and sorting algorithms. Many spike sorting methods are available including: box, template, line, band sorting in time/voltage space and contour sorting in PCA feature space. A spike waveform snapshot of user-defined size is automatically acquired on each channel by the PlexControl program, and may be viewed at any time to revise spike sorting parameters as necessary. Units can be defined based on either snapshots of the live data or by “drawing” directly on the live data in real time. Each method may be used to sort single electrodes, stereotrodes and tetrodes online

  Continuous spike, field potential and wide-band signals are conveniently displayed in PlexControl’s flexible, customizable user interface along with detected spike waveform segments and their associated two-dimensional (2D) and three-dimensional (3D) feature space clusters for online spike sorting. Additionally, all three data types, as well as thresholded spike waveform segments and digital event data, may be recorded to disk on a per-channel basis

  The OmniPlex System is a compact, flexible platform for high performance data acquisition and powerful online spike sorting.  It offers low latency, superior common-mode rejection amplification and is well known for its user-friendliness. The OmniPlex System is a combination of the OmniPlex chassis, OmniPlex Software, and for new OmniPlex systems purchased today, a Digital Headstage Processor (DHP) subsystem – all described below. Other versions of the OmniPlex system could utilize an OmniAmp or DigiAmp A/D device.

  The compact OmniPlex chassis houses cards for synchronization and timing between system components, acquisition subsystem links, digital inputs for 64 channels and 32 auxiliary analog inputs for non-neural experiment signals.

  The OmniPlex System Controller operates the OmniPlex Software consisting of OmniPlex Server, the “software engine” for neural signal processing, and PlexControl, which is the main user interface providing data visualization and the user interface for interacting with the system.

  The Digital Headstage Processor (DHP) for use with digital headstages is Plexon’s most advanced subsystem. The DHP now enables up to 512 channels of neural recording, decreased sensitivity to ambient electrical noise, and lighter headstage cables with fewer wires for greater freedom of animal movement. Further, it offers real-time upsampling to 40KHz and adjustment of multiplexer timing offsets (equivalent to simultaneous sampling) for improved sorting quality, trodal acquisition and software referencing  – unlike other digital headstage based systems. Alternatively, the predecessor to the DHP is Plexon’s DigiAmp™ subsystem for analog headstages. The DigiAmp Digitizing Amplifier is available in two sizes: the MiniDigi™ for 16, 32, 48 and 64 channels, and the DigiAmp for 64, 128, 192 and 256 channels. This subsystem is recommended when using analog headstages. Both provide 16-bit A/D conversion at 40kHz per channel for acquisition of the complete wide-band signal. Flexible digital filtering supports a wide variety of filter types (Bessel, Butterworth, Elliptic, 2-12 poles, plus adaptive power line noise filter) and cutoff frequencies, for extracting spikes and field potentials from the wide-band signal and for noise removal.

  The DHP and the DigiAmp digitizing amplifier are both electrically isolated.
Sorted spike and continuous data acquired by the OmniPlex System is available to external clients (developed through the C/C++ or MATLAB® software development kits (SDKs)) as soon as 1-2 milliseconds after acquisition. This figure is the actual end-to-end latency through the entire OmniPlex System from spike detection input to hardware output, including an online user client program.
 
  The DigiAmps and all modules in the chassis are synchronized via a high-resolution master timing module.  The same master timing module can be extended to synchronize timestamps with compatible equipment such as Plexon’s CinePlex® Behavioral Research System.

  The OmniPlex® Neural Recording Data Acquisition Systems rely on two important software programs: PlexControl, which is the main user interface, and OmniPlex Server, known as the system’s “software engine”. Together, they are referred to as the OmniPlex Software

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 支持的文件类型:

 Plexon (.PLX,.DDT),NeuroExplorer (.NEX),Alpha Omega (.MAP,.MPX),Axion Biosystems (.SPK,.RAW),Cyberkinetics/Blackrock Microsystems (.NEV),CED Spike-2 (.SMR),DataWave (.UFF,.DAT,.CUT,.ACT),Neuralynx (.NTT,.NST,.NCS,.NVT),MultiChannel Systems (.MCS,.MCD),Panasonic (.MED), Neuroshare (.NSN),generic binary continuous data等

 
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