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The Alpha Lab Pro is a complete
electrode recording system nicely integrated into a
single workstation that includes the following
modules:
- Electrode Micropositioning module
- Signal Amplifications and conditioning module
- Data acquisition module for Spike, LFP and
other analog and digital signals
- Real time spike sorting module
- Offline spike sorting module
- Offline Data analysis module
The unique hardware architecture and innovative
software design allow the user to customize the
system to fit the researcher’s unique experimental
requirements. Furthermore, the software gives the
user complete control over the entire experiment
from a single computer interface. |
Right click to download/save
Alpha-Lab Presentation
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| Modules Key Features
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Micro Positioner
Signal Conditioning
Data Acquisition and Logging
Online Sorting
Offline Sorting
Offline Analysis
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| Micro Positioner
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| The motors are coupled to electrode
microdriving terminal (MT) via flexible shafts. This
allows great flexibility and endless design options.
Furthermore, the use of flexible shafts to connect
the motors insures electrode stability and protects
the animal from injury caused by small head
movements.
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| Signal
Conditioning
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Flexible high pass and low pass
filters - the high pass filter can be set to any of
65 different values from DC to 1KHz. The low pass
filter can be set to any of 57 values from 100Hz to
10KHz.Flexible gain selection - each channel can be
amplified at a different gain. With the Alpha Omega
Head Stage Pre-amplifiers, this gain can range from
x1 to 63,750. Many different gain values are
possible within this range. Audio mixer control –
software control for selecting individual or
multiple channels.Stimulus control – software
controls the relays on the Head Stage to switch
easily between recording and stimulation.
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| Data Acquisition
and Logging |
4 different data acquisition modes
– continuous mode, level mode, external trigger mode
and window discriminator mode.Variety of logging
options – external trigger control, file size
control, file time control and manual
control.Sampling rate – the user can control the
sampling rate for each input individually.
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| Online Sorting
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Template matching algorithm – up to
3 templates and one level window for each channel.
The algorithm runs continuously (sample by sample)
for each template with the option of online
modification.Other Features - Double match
detection, Firing Rates continuous display,
undetected spikes display, adaptive template mode,
and additional Window Discrimination option (two per
template).Statistical Tools - Peri Stimulus
Histogram, Raster display, ISI Histogram and Firing
Rate Tachogram for every channel and template.
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| Offline Sorting
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Principal Components Analysis
algorithm - Represents spikes in a two dimensional
space, which also conserves a large part of the
information about the shape of the original signal.
It also provides different statistical tools to
verify the accuracy of the sorting.
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| Offline Analysis
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Neurophysiological data analysis
software package (NeuroExplorer ) - A complete set
of spike train analysis options, such as standard
histogram and rasters, autocorrelograms,
crosscorrelograms, burst analysis, joint PSTH,
spectral densities, and various activity displays.
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| Alpha Lab Diagram
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