A STC file (STC = "slice time course") contains the functional data (time series) of one slice of an experimental run. An FMR project links to the STC file with an "STC Prefix". If the name of the FMR project is, for example, "CG_OBJECTS.FMR", the STC prefix will be "CG_OBJECTS-" after project creation. The STC prefix changes when the data is preprocessed to reflect the applied preprocessing steps, but it can also be changed to any desired name.
Each data element (intensity value) is represented in 2 bytes (unsigned short). The data is organized in loops:
NrOfSlices
NrOfVolumes
NrOfRows
NrOfColumns