NeuroMatic, data analysis and acquisition software

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Acquisition ||| Clamp | File | Notes / Log | Folders | Board | Stims | Stim Misc | Stim Time | Stim Board | Stim Pulse | Analysis | Configs |||


Stim Pulse Generator


Output Selector

Use the top drop-down menu to select the output configuration you wish to edit. For example, “DAC_0” for DAC output configuration 0. The number of pulse configurations created for that output appears below as (n = #).


Pulse Configuration

NeuroMatic allows any number of pulse configurations to be created using the New button. These configurations can then be edited via the Edit or Clear buttons. Alternatively, you can add or edit configurations using the Pulse Table. Each pulse configuration consists of the following variables:

Shape Number - (1) square, (2) ramp, (3) alpha-wave, (4) double exponential or (5) other. Use the alpha-wave or double-exponential shape to create synaptic-like waveforms. Select “other” to use your own pulse waveform shape. In this case, using Igor’s Data Browser (Data > Data Browser), you will need to place your pulse wave in the stimulus folder you are editing, which resides in the Stims Folder (root:Packages:Stims).

Wave - the stimulus output wave number to which the pulse is to be added. Stimulus output waves are numbered from zero.

Amp - peak amplitude.

Onset - pulse onset time (msec).

Width - pulse duration, or time constant of alpha pulse, or rise time constant of double-exponential pulse (msec).

Tau2 - decay time constant of double-exponential pulse (msec).

Delta - use the delta controls (D) to “copy” pulses to successive waves if there is more than one output waveform. For example, if wave = 0 and wave D = 1, then the pulse will be added to every waveform starting at waveform 0. If, in addition, amp D = 10, then the amplitude of each successive pulse will be incremented by 10. On the other hand, if you want to copy to only every other wave, then one would set wave D = 2.


Train

Select this button to create a train of pulses at fixed intervals or random intervals (Poisson distribution).


Pulse Table

Select this button to add or edit pulse configurations via a table. Your changes will be implemented once you deactivate the window by clicking off the table, or once you kill the table. In the first column of the pulse table, PG_Shape, shapes are denoted with their numeric value as defined above. Delta columns are defined as follows: (ND) wave number delta (AD) amplitude delta (OD) onset delta (WD) width delta (TD) tau2 delta.


Plot

Select this button to view your output waves. As default, all waves for the currently selected output will be displayed. To view each output wave individually, unclick the All Waves checkbox and increment through your waves using the Wave SetVariable control on the top of the plot. To view all DAC and TTL outputs at the same time, click the All Outputs checkbox true.


Use "My" Waves

If you want to use your own waves for a stimulus output, turn off the pulse generator by unchecking Use "My" Waves. Place your stim waves in the appropriate stimulus folder. Your stim waves should begin with the prefix “MyDAC_” or “MyTTL_”, followed by the configuration number, followed by the wave number. For example, if you have 3 stimulus waves (waveN = 3) for DAC configuration 0, your output waves should be named MyDAC_0_0, MyDAC_0_1 and MyDAC_0_2. These waves should have dimensions defined by Stim Time.


Misc ||| Home | Install | Links | Release Notes |||

Analysis ||| Basics | Data / Folders | Sets | Groups | Graphs | Main | Stats | Spike | Event | Fit | MyTab | Macros | Configs |||

Acquisition ||| Clamp | File | Notes / Log | Folders | Board | Stims | Stim Misc | Stim Time | Stim Board | Stim Pulse | Analysis | Configs |||


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