EEG

besa软件中添加和修改marker

Besa hands on

Posted by 陈锐CR on September 7, 2021 | 阅读

How to add and edit markers in BESA

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BESA Research is the most widely used software for source analysis and dipole localization in EEG, MEG, Evoked Potentials and ERP research.——from official website

How to use the besa software, you can see the articles.

https://7988888.xyz/besa/

today,I talk about how to add and edit markers in the software.

First of all, I need to say that this is the operation after the experiment collection.

For different parameter modification methods of marker in besa, please refer to the following:

Event Codes

The event code Code must be one of the following integers:

Code Event/Trigger Type
1 Trigger
2 Comment
3 Marker
11 Pattern1
12 Pattern2
13 Pattern3
14 Pattern4
15 Pattern5
21 Artifact on
22 Artifact off
31 Epoch on
32 Epoch off
41 New segment
42 Average segment

Here are a couple of typical examples:

1) Simple trigger file
Tms Code TriNo Comnt
100.234 1 3 Trigger: 3
2300.456 1 1 Trigger:1
4500.21 1 1 Trigger:1
9800.47 1 7 Trigger:7
12500.78 1 2 Trigger:2
21237 1 1 Trigger:1
2) Trigger file with reaction code and reaction time
Tms Code TriNo RTsec RCode
100.234 1 3 0.23 1
2300.456 1 1 1.11 2
4500.21 1 1 0.15 1
9800.47 1 7 0.87 0
12500.78 1 2 2.1 2
21237 1 1 3 1
3) Event file without triggers
Tmu Code Comnt
10000.234 3 Marker
230000.456 12  
450000.21 14  
980000.47 12  
1250000.78 3 Marker
2123700 2 Comment
2534100.567 15  
4) File including triggers and events
Tms Code TriNo RTsec RCode Comnt
100.234 2 0 0 0 CommentSet
2300.456 1 2      
4500.21 1 1 0.15 1  
9800.47 11        
12500.78 3        
21237 2 0 3 1 Comment
25341.567 15        
5) New Segments
Tms Code TriNo Comnt
0 41 2010-04-26T15:30:20.31 Start recording
21000 41 2010-04-27T09:17:00.0 Next day

The new segment at the time 0 overrides the start time in the file. A second segment at 21 s starts a new data block one day later at 9:17.

6) Average Segments
Tms Code TriNo Comnt
0 42 100000 Cond 1: 25 avs
1100 42 200000 Cond 2: 201 avs

The file contains two average segments. The first, with a prestimulus interval of 100 ms, has a duration of 1100 ms. The second, with a prestimulus interval of 200 ms, has a length up to the end of the data file.

Reference website:

http://wiki.besa.de/index.php?title=Event_File_Format

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谢谢大家观看,如有帮助,来个喜欢或者关注吧!


本文作者:陈锐

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版权声明:本文由 陈锐CR 在 2021年09月07日发表。本博客文章作者为陈锐CR时均采用属于个人原创撰写,未经许可,禁止在任何媒介以任何形式复制、发行本文章,如需转载,请查看About联系方式,非商业转载请注明出处,不得用于商业目的。
文章题目及链接:《besa软件中添加和修改marker》



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