Extended Data Fig. 10: Trial-by-trial and timing variability of task-specific activity flows.
a, The trial-averaged activity flows represented by black streamlines, overlaid with the colourmap representing the trial-by-trial variability (MSE, Methods) of single-trial task-specific activity flows, during the onset (left), mid-task (middle) and offset (right) of the math listening tasks. b, Same as a, but during the math questioning tasks. c, Same as a, but during the math answering tasks. d, The twenty-two parcellation map across the flattened left cortex52. The annotated colour map denotes the parcellation ID (1~22). Abbreviations from parcellation 22 to 1: DLPC: dorsolateral prefrontal cortex; IFC: inferior frontal cortex; OFC: orbital frontal cortex; ACC: anterior cingulate cortex; mPFC: medial prefrontal cortex; PCC: posterior cingulate cortex; IPC: inferior parietal cortex; SPC: superior parietal cortex; TPO: temporo-parieto-occipital; LTC: lateral temporal cortex; MTC: medial temporal cortex; IC: insular cortex; AAC: association auditory cortex; A1: primary auditory cortex; POC: posterior opercular cortex; PMC: premotor cortex; MCC: midcingulate cortex; PCL: paracentral lobule; SMC: sensory-motor cortex; MT+: middle temporal and medial superior temporal cortex; VS: ventral stream; DS: dorsal stream; V1: primary visual cortex; EVC: early visual cortex e, The consistency ratios (or similarity index, Methods) between single-trial and trial-averaged activity flows following the onset of each task trial of math listening (left) and answering tasks (right). The colour map represents the consistency ratio of each time step following the onset of each task trial. Similar to a histogram, the black dashed lines count the number of trials with single-trial consistency ratios peaking at individual time steps following the task onset.
