High Performance Electrophysiology Recording & Experiment Control
Cheetah Software provides the ultimate, high performance electrophysiology recording and experiment control software available for neural signal processing, display, recording and network data distribution for customized, online experiment analysis and control. Through excellent software design and efficient CPU usage, Cheetah is able to process 512 input electrode channels.
Over the past 20 years, Neuralynx has been continually developing and enhancing Cheetah Software for Single Unit Action Potential and LFP research experiments, providing the signal and data processing features and performance required for this highly demanding aspect of neuroscience research. Cheetah enhancements support the flexibility to easily configure electrode input channel assignments and signal processing options needed for the user’s specific experiments.
One software package - Cheetah - seamlessly integrates with all of Neuralynx’s hardware acquisition subsystems, including our most recent Digital Lynx SX, FreeLynx wireless digital telemetry, and Digital Multiplexing Headstages. This extends the investment made in laboratory equipment.
Time Window features:
Smooth scrolling displays show synchronized EEG/LFP CSC channels, spikes and event records in a multi-trace oscilloscope format
Display time ranges from 100 milliseconds to 10 seconds
Individual vertical waveform zooming for quick display adjustments to view signal details
Smooth scrolling - even for channels with slower sampling rates
Display may be paused and reviewed for investigating interesting events
Acquisition Entities & Display Properties
Channel Cloning & Digital Filtering
Neuralynx’s Digital Lynx SX system eliminates channel duplication challenges by digitizing and sending the signal to Cheetah without any analog domain modification: all channels are sampled at 24-bit resolution and are full bandwidth (DC to 8 KHz). Digitizing the full bandwidth signals allows Cheetah to perform digital filtering (Digital Signal Processing (DSP) on the signal. Users can make unlimited copies, or “clones,” of each input channel and use Cheetah to perform the desired bandwidth filtering for each signal type. Changes to the settings of an acquisition entity using one of the cloned channels will not affect any other acquisition entity using other clones of that channel. Note: The most common use of channel cloning is to record a continuous version of one tetrode channel, allowing the user to filter for low frequency signals, such as Theta, while still recording the high frequency spike activity without any special connections or equipment.
Digital Reference Selection (DRS)
Cheetah manages all hardware settings “behind the scenes,” making Digital Reference Selection (DRS) set up easy. Instead of having to control each setting of the DRS hardware analog switch arrays – the interactions between the DRS functions and the input boards and with each other - the user merely sets the reference input for an acquisition entity (AE) directly in the AE property page. The Digital Lynx Combo Board combines the same DRS functions and Input Board operation into a single board while maintaining backward compatibility of the DRS Board.
Additionally, Cheetah eliminates manual programming of the references in a configuration file: the reference selection list only shows A/D Channels and dedicated references that the hardware is currently capable of using as a reference for a particular AE. Once a reference is selected, Cheetah programs the necessary hardware changes to set the reference appropriately.
Recording & Experiment Control:
High Performance: 8 to 512 channels
Signal processing for LFP/EEG/EMG and spikes
Real-time data record distribution for experiment control and analysis
High performance displays for spikes and EEG
Input channel signals may be “cloned” and processed with multiple parameters, such as different low and high frequency bands for EEG and spikes
Microwire tetrode, stereotrode and single wire spike processing
Online FFT plots improve signal evaluation
Online reference selection allows for quick reference change
64-bit Windows® 10
Audio monitoring of input signals
Unfiltered, raw data file records
Direct Wireless Acquisition
FreeLynx - 32 - 256 channel, wireless digital telemetry
LabLynx - portable, low-cost 16 - 256 channel acquisition system
Ease of Use:
Auto Threshold operations automatically set functional spike detection levels in seconds - reducing setup time
Pre-defined configuration files for easy startup
Modifiable configuration files to suit user specific needs
SpikeSort 3D - online/offline wave-to-cell classification tool (free license)
Hardware Processing Platform (HPP) for sub-millisecond signal analysis latency
Free access to extensive library of software utilities and development packages:
Video Tracking Software (VTS) supports many modes, such as multiple “targets” for position, navigation, head direction and Grid cell experiments/studies.
Distributed data analysis and experiment control are supported by our NetCom library, enabling users to focus on developing custom analysis and control programs for their experiments without being concerned about the details of data acquisition engineering.
Digital Lynx SX Firmware version 2.1.0.
Digital Lynx SX acquisition systems require Windows 10 PRO 64-bit
Intel Xeon W or Intel i7 / i9 processor (8 core)
500GB Serial ATA /M.2 SSD for Windows OS
2TB Serial ATA 3.0Gb/s 7200RPM Hard Drive for data storage