Dear all,

Have I understood correctly that the slice delay of each slice is not needed when performing slice time correction with preprocess-sess?

I am processing an open OASIS fMRI dataset. The dataset has fMRI data in nifti format and JSON files that contain information about the data.

In the instructions they say: "Slice timing is included in the JSON when available. Some original DICOM files did not have slice timing info. When slice timing information is unavailable use the ratio TR/#slices."

The data is collected with a Siemens scanner.

If the slice timing is available it seems to be interleaved:

"SliceTiming": [
        1.1025,
        0,
        1.165,
        0.059999999999999998,
        1.2250000000000001,
        0.1225,
        1.2875000000000001,
        0.1825,
        1.3474999999999999,
        0.245,
        1.4099999999999999,
        0.30499999999999999,
        1.47,
        0.36749999999999999,
        1.5325,
        0.42749999999999999,
        1.595,
        0.48999999999999999,
        1.655,
        0.55000000000000004,
        1.7175,

Could I just run slice time correction with the siemens option?

Best regards,

Maria