Sequence learning recodes cortical representations instead of strengthening initial ones
Fig 5
Evidence for the recoding model.
The recoding model predicted the distance between pairs of voxel activity patterns corresponding to novel and repeating sequences in three brain regions. Models are shown on the x-axis (’R’: recoding, ‘A-IP’ and ‘A-II’ are associative item-position and item-item models respectively). Y-axis displays the model fit in terms of participants’ average Spearman’s rank-order correlation (r). Dots represent individual participants’ values and error bars the standard error of the mean (SEM). Coloured dashed lines represent the lower and upper bounds of the noise ceiling for the recoding model. In all displayed plots the lower noise ceilings were significantly greater than zero across participants. The anatomical contours of the regions are superimposed on the MNI152 glass-brain template (left).