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Several
modules are available or can be developed to perform online analysis
on the measured physiological data. For example modules for GSR,
FFT, respiration and force analysis are readily available.
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Our
LabVIEW programmers can deliver custom made online/off-line analysis
programs for the same price as an "off the shelf" program
with delivery times as low as several days. LabVIEW programmers
can be rented by the hour. Prices/hour for our LabVIEW programmers
can be found on the prices page.
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Example
of an online ERP module.
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This
screenshot shows 16 online calculated averages during an experiment
with a visual stimulus. Each average is updated after every stimulus
trigger. (This screenshot is after 296 sweeps. Each picture also
shows the bi-phasic average to give an indication of the noise level.
Although this version shows only 16 averages, our software is well
capable of calculating and displaying up to 144 running averages
and simultaneously saving the raw signals to disk for later additional
off-line analysis. It's always impressive to see the ERP's slowly
rise from the noise during an experiment. |
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Example
of a FFT module
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This
is an example of a custom made FFT module. This screenshot shows
online calculation and display of 16 spectra (1024 point each with
an update rate of 1 FPS). Calculating up to 144 spectra online and
simultaneously saving raw signals to disk is no problem. The spectrum
graph has a lot of additional features like: cursors, calculation
of total power, etc. |
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