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. Author manuscript; available in PMC: 2014 Feb 15.
Published in final edited form as: J Neurosci Methods. 2012 Dec 20;213(1):123–131. doi: 10.1016/j.jneumeth.2012.12.012

Figure 1.

Figure 1

Coordinate systems and transformations. Three coordinate systems are defined. The MRI axes (M subscripts and red lines), the chamber axes (C subscript and blue lines) and the user view axes (V subscript and pink lines). Two transformations between the coordinate systems are also defined. TC represents the transformation from the chamber coordinates to the MRI coordinates (green arrow) while TV represents the transformation between the MRI reference frame and the user view coordinate system (purple arrow).