SPM/Slice Timing

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The Problem[edit]

With an EPI sequence, slices constituting a 3D volume are acquired at different times (within one TR).

Slice Timing Correction[edit]

See SPM > Temporal > Slice Timing.

Slice Order[edit]

hdr = spm_dicom_headers('dicom.ima');
slice_times = hdr{1}.Private_0019_1029

Timing Parameters[edit]

See Microtime Onset and Microtime Resolution.

Using the HRF Time Derivative[edit]

See HRF 'Informed' Basis Set.