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System Overview

  • Expandability. Up to 128 channel configurations
  • Online statistics. Spike raster, firing rate, PSTH and evoked potential
  • Intan. The AlphaRS is designed to work with all Intan based HeadStages
  • Integrated Recording and Stimulation in one system. Using one software to control all channel’s modes and enabling closed-loop actions with short latency timing
  • Advanced stimulation capabilities. Allowing a variety of stimulation options, patterns, and amplitudes, allowing manual or automatic control over all channel’s modes
  • Online Recording and Stimulation algorithm. An adaptive algorithm for fast recovery from stimulation artifact, the artifact deducted during stimulation enables online spike segmentation and sorting
  • Simultaneous data streaming of Raw, Spike & LFP
  • Real-time closed loop. DSP programming allowing fast response for closed-loop (>1ms)
  • Powerful DSPs. State-of-the-art Octa-core DSPs
  • SDK tool. Two-ways communication using MATLAB or C++ for streaming all data and controlling system functionality
  • Optogenetics. Built-in GUI for controlling various optogenetics systems

Complete MATLAB Control & Data Access

  • Data streaming. All data collected by the AlphaRS can be accessed online in MATLAB.
  • Full system control. From within MATLAB, commands can be sent to adjust almost all system parameters or trigger unique stimulation paradigms.
  • Closed-loop functionality. Data can be analyzed online, and results can directly trigger digital outputs or stimulation
  • Easy programming. Specially designed MATLAB toolbox and instructions make accessing data in MATLAB simple and easy.
  • Endless possibilities. Online access to data means each user can code paradigms specifically for their unique needs.

System Specifications

FeaturesSpecifications and Options
Filtering 4 Selectable software digital filtering per channel (1Hz to 10KHz)
Referencing Digital selected channel referencing
Spike sorting Up to 4 spike templates per channel using 8-point template matching, an SSQ algorithm, and optional window discriminators
Compatibility MATLAB, C++, NeuroExplorer® online link
Audio 2 stereo outputs
General purpose digital outputs 8 outputs single-bit digital outputs, Synchronization TTL output
General purpose analog outputs 4 outputs ± 5.0 V, 16-bit analog outputs
General purpose digital Inputs 4 digital input channels (TTLs) , 16-bit digital input port
General purpose analog Input 4 differential analog input channels with 16-bit resolution and dynamic range of ±5V
PC interface 1 Gbit Ethernet
Power supply 4-pin DC power connector (100-240 VAC, 50-60 Hz)
HeadStage connectivity Up to 8 HeadStages with micro HDMI connector
LED Indicators Indicating general system’s state
System size 26*18*5 cm

HeadStage Specifications

FeaturesSpecifications and Options
Dynamic Range ± 5.0 mV
A/D input conversion -16-bit resolution
Sampling Rate 30kHz per neural channel
Amplifier Inputs Single ended with one reference or differential per channel
Noise 2.4µV RMS
Hardware Filters LPF: 20mHz – 1KHz, HPF: 10Hz – 20KHz
HeadStage Configurations 16, 32, 64 or 128
HeadStage integrated Sensors 3 axis accelerometers
Impedance check Up to 5MΩ @ 1KHz, ±1nA
Size & Weight 16 CH 23 mm x 13 mm x 2.6mm and 0.79gram
32 CH 24 mm x 15 mm x 2.6mm and 0.94gram
64 CH 21mm x 14mmx 4.7mm and 1.3gram
HeadStage integrated Stimulation Flexible stimulation configuration to all channels // Up to ±2.55mA current Up to ±9 voltage compliance
Cable length 0.3-1.8 metters