Screenshot from the BrainLocator

Screenshot from the Locator applet.

Coordinates can also be fed in manually (C=coronal, H=horizontal, S=sagittal). Additional features show the photographs of the section which corresponds to the popup window. Further information is provided on the DVD which accompanies the Atlas of the Human Brain.


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Why coordinates and how to enter them

The program shows the orthogonal planes to which these coordinates are common. With this tool it is possible to dial in coordinates and find out where these coordinates are located in the brain.

The 3D coordinates can be used to directly jump to a specific place in the brain or to lookup or reference a structure. The Navigator uses two coordinate systems The Atlas of the Human Brain system and the Talairach system. Both have the same origin but differ in detail. It is possible to switch between these two systems and to enter coordinates directly.

To directly enter coordinates click on the x, y or z-field and type in a new position. (Use the English numeric notation, don't use a comma). Press the Enter key or click on a different field to complete.

For this purpose a special entry form ( http://www.thehumanbrain.net) can be used together with the Navigator applet.

Click on 'Add Coordinate' to add your data to the list. Continue with additional points or click on 'Import into Navigator'. The Navigator then takes your data and shows every point as a small circle.

Try the button "Import Demo Coordinates". A large number of circles appear derived from several functional MRI studies. The red circles belong to the right hemisphere, the green circles to the left. This color code has been necessary, because in the popup window only the right hemisphere is shown. In this window the data from the left hemisphere is mirrored and shown in green. If you click on one of these circles the crosshair is adjusted to the center of the circle in all 3 views. (If you click on a circle from the demo dataset additional information about the referenced study is displayed in a separate window).