Get SBI division information

Contents

Output division information in SBI _

In some experiments, SBI receives division signal from input ports with appropriate experimental protocol of SBI. The division signal can be obtained as an ascii file and used to separate MEG data into several data sets according to experimental conditions. The following procedure will be done in SBI software.

  1. Choose MEG session ID in Main window.
  2. Select menu 'Display Wave & Map' to show wave map window.
  3. In the wave map window, select menu 'View'->'Set Chart Parameters'
  4. Set repetation parameter to display all trials. Then, push 'Apply' button, followed by 'OK' button.
  5. Select menu 'Option'->'Flag Output' in the wave map window.
  6. Directory and filename, to which division information is written, is notified by a dialog.

The output file has the following format. 

1  00000000 00000000 01000000 00000001 00000000 00000000 00000000 00000000
2  00000000 00000000 01000000 00000010 00000000 00000000 00000000 00000000
3  00000000 00000000 01000000 00000011 00000000 00000000 00000000 00000000
4  00000000 00000000 01000000 00000100 00000000 00000000 00000000 00000000
5  00000000 00000000 01000000 00000001 00000000 00000000 00000000 00000000
6  00000000 00000000 01000000 00000010 00000000 00000000 00000000 00000000
7  00000000 00000000 01000000 00000011 00000000 00000000 00000000 00000000
8  00000000 00000000 01000000 00000100 00000000 00000000 00000000 00000000
9  00000000 00000000 01000000 00000001 00000000 00000000 00000000 00000000
...

In this case, the forth column represents division information for each trial. By using text filter program (e.g., awk), this information can be converted into an appropriate format.

2004-12-27 Taku Yoshioka