The 24 SOM output neurons arranged into a two-dimensional grid (6 × 4).

<p>Neurons were grouped into three clusters (CL-ExSp, CL-StSm and CL-ExSm; separated by dashed lines) and six sub-clusters (ESp, Sp, LSp/Sm, Sm, HotSm, HunLSp/Sm; shown using different degrees of greyness) through hierarchical cluster analysis.