diff --git a/elements/neuron/presynapse.md b/elements/neuron/presynapse.md
index c96a263..ab70604 100644
--- a/elements/neuron/presynapse.md
+++ b/elements/neuron/presynapse.md
@@ -16,9 +16,12 @@ Qui comprendiamo:
 PRESYNAPSE
   type: comprehension
 
-  expansion: 
+  expand_comprehension: 
     &VGCC-PRE_ALL: VGCC-PRE [ full: 10x, active: 5x, empty: 2x ]
-    @: VGCC-PRE-TUN [pass: VGCC-PRE_ALL]
+  
+  expand_container:
+    @: VGCC-PRE-BEH []
+    @: VGCC-PRE-TUN [pass: &VGCC-PRE_ALL]
 ```
 
 ### PRESYNAPSE-BEH: Container