Learning Naturalistic Temporal Structure in the Posterior Medial Network

Participants watched three different clips from the movie "The Grand Budapest Hotel", six times each. One clip was "intact" (viewed in its original order); one clip was scrambled but viewed in the same scrambled order for all six repetitions ("scrambled-fixed"). The last clip was also scrambled, but viewed in a different scrambled order for each of the six repetitions ("scrambled-random"). **TIMING** The onset times in each '_events.tsv' reflects the onset times (in seconds) after discarding 3 volumes in a preprocessing step (for T1 equilibration). For these timing files to be relevant, first discard 3 volumes at the beginning of each functional run. The "waiting for scanner" period at the beginning of the run-specific mp4 files takes longer than 4.5s (3 volumes at 1.5s TR) because the first multiband volume takes a long time to collect. Therefore, although the countdown to the first movie clip does not start until 37 seconds into each run-specific mp4, only 3 volumes were collected during that time. The first clip in each run onsets right after the countdown, which takes 6 seconds. For convenience, below is a list of which volumes correspond to which movie clip in each run, after discarding the first 3 volumes of each run: Clip 1: volumes 5 to 64 Clip 2: volumes 71 to 130 Clip 3: volumes 137 to 196 Clip 4: volumes 203 to 262 Clip 5: volumes 269 to 328 Clip 6: volumes 335 to 394 Timing is the same for all subjects and runs, though the assignment of specific movie clips to each of these 6 positions varies between runs and between counterbalancing conditions 1 and 2. **COUNTERBALANCING CONDITIONS** Subjects 1-15 are in counterbalancing condition #1 (stimuli labeled cond1); they viewed identical stimuli in the same order Subjects 16-30 are in counterbalancing condition #2 (stimuli labeled cond2); they viewed identical stimuli in the same order. Subjects in counterbalancing conditions 1 & 2 watched the same 'intact' clip. The 'scrambled-fixed' clip for subjects in counterbalancing condition 1 was the 'scrambled-random' clip for subjects in counterbalancing condition 2, and vice versa. **FURTHER HELP** See the paper in References And Links for more information. The first author (Dr. Mariam Aly) can provide further clarification if needed.