jvs:fscan:manual:chapter1:threshold_and_overlay
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jvs:fscan:manual:chapter1:threshold_and_overlay [2011/08/01 19:18] – voyvodic | jvs:fscan:manual:chapter1:threshold_and_overlay [2024/06/21 15:44] (current) – external edit 127.0.0.1 | ||
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== Threshold and Overlay == | == Threshold and Overlay == | ||
- | //Threshold// | + | **Threshold** |
- | After opening an activation map in fScan using the behavioural and functional files (see how [[jvs: | + | See Also [[Thresholding]] |
- | /-r run1list.txt delay 4.5 -ttest 1 2 | + | After opening an activation map in fScan using the behavioral and functional files (see how [[jvs: |
+ | |||
+ | *-r run1list.txt delay 4.5 -ttest 1 2 | ||
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In this case it is **1**. | In this case it is **1**. | ||
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The green indicates all the additional activation of the second task in the command (**2**) which does not overlap with the first. | The green indicates all the additional activation of the second task in the command (**2**) which does not overlap with the first. | ||
- | //Overlay// | + | **Overlay** |
+ | |||
+ | The next step in analysing the behavioral data is to overlay the activation map over the anatomical rendition of the subject. Opening the anatomical image, select the ' | ||
+ | |||
+ | **Multiple Overlays** | ||
+ | |||
+ | A useful tool in comparing scans, a multiple overlay involves some manipulation of the color and threshold of the activation map. A single overlay can show the comparison between two tasks in the same scan. To compare with other tasks from different scans, it is necessary to make certain adjustments. | ||
+ | |||
+ | Open two activation maps from two different scans involves the same process as seen [[jvs: | ||
+ | |||
+ | **See Also:**\\ | ||
+ | |||
+ | |||
+ | [[jvs: | ||
+ | [[jvs: | ||
+ | [[jvs: | ||
+ | [[jvs: | ||
- | The next step in analysing the behavioural data is to overlay the activation map over the anatomical rendition of the subject. Opening the anatomical image, select the ' |
jvs/fscan/manual/chapter1/threshold_and_overlay.1312226330.txt.gz · Last modified: 2024/06/21 15:41 (external edit)