Fig. 5.

Cortical variation of the extent of anatomical connections within the macaque thalamus. (A) Exemplar thalamic connectivity patterns for M1 (area F1; magenta) and DLPFC (area 9/46d; cyan), parcellated using the Markov Atlas (69). (B) ED matrix. (C) Cortical $E{D}_{pc1}$ loading map. (D) Cortical myelin map, calculated by averaging T1w/T2w values across 30 macaque monkeys (70). (E) Across cortex, $E{D}_{pc1}$ loadings positively correlated with T1w/T2w values at the group level and (F) at the subject level. (G) Cortical map reflecting anatomical coupling with the anteromedial-posterolateral thalamic spatial gradient ($PL-A{M}_t$). Warmer colors reflect cortical parcels that preferentially coupled with anteromedial thalamus ($PL-A{M}_c$). (H) Cortical parcels with higher $E{D}_{pc1}$ loadings preferentially coupled with posterolateral thalamus. The red dashed line represents parcels with weak preferential coupling the $PL-A{M}_t$ gradient. (I) On average, $E{D}_{pc1}$ loadings and $PL-A{M}_c$ value negatively correlated across monkeys.