Handy programs to visualize NIRS data (2): plotTopoMap

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Often you need to view the spatial pattern of activation as in the example below. plotTopoMap allows you to do that. It probably only works for Hitachi devices where the spatial relationship between channels are known.


In the above example, the activation pattern of a 24-channel patch is plotted. The white number indicates the channel number. Color indicates the signal intensity. This map is smoothed. You can immediately tell that what areas are activated. You can also rotate the patch in case the orientation is not correct. You can also hide the channel numbers.

Here is an example on how to use this function:

figure; plotTopoMap(randn(24,1),'4x4');

The 2nd parameter is the patch configuration. It can be ‘4×4’, ‘3×11’, ‘3×5’ or ‘3×3’.

And here is the source code of the function.
plotTopoMap.m. Type help plotTopoMap in MatLab to see how to use it.

Note. This script is adopted from the topo program made by Hitachi.

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546个被试的大型实验是怎么做的?近红外超扫描技术如何揭开群体冲突的神经机制?北京时间2020年5月29日周五上午11点,北京师范大学的马燚娜教授(Yina Ma)将为大家讲解她们组刚刚在Nature Neuroscience发表的文章。 欢迎大家参加并参与讨论。 时间: 北京时间2020年5月29日周五上午11点 地点: https://zoom.com/j/84320310196房间号: 843 2031 0196 密码: 600516 她要讲的文献如下: Within-group synchronization in the prefrontal cortex associates with intergroup conflict....
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