Multichannel Systems NeuroExplorer User Manual

Page 47

Advertising
background image






2.1.7. Continuously Recorded Data


The continuous data type is used in NeuroExplorer to store the data that has been continuously
recorded (digitized).


The following figure shows continuous variable AD01 together with the spike train sig001a:


Continuous data may not be imported by default from the data files created by the data acquisition
systems. Use View | Data Import Options menu command to specify which data types
NeuroExplorer will import from the data files.


Continuous variables can be used in the following analyses:

Rate Histograms
Rasters
Perievent Histograms (instead of PST, NeuroExplorer calculates the spike-triggered average for
a continuous variable)
Perievent Rasters (NeuroExplorer shows the values of continuous variable using color)
Spectral Densities
Correlations with Continuous Variable
Coherence Analysis

Limitations


Internally, each data point of the continuous variable is stored as a 2-byte integer. The maximum
number of values (in each continuous variable) in NeuroExplorer is 2,147,483,647. In reality, the
limiting factor is the amount of virtual memory on your machine, since all the values should fit into
virtual memory.

Viewers


You can view continuous variables in the graphical display ( View | 1D Data Viewer menu command,
see figure above).


Numerical values of the continuous variables are shown in the Continuous sheet of the Data view.

Page 45

Advertising