diff --git a/elements/neuron/presynapse.md b/elements/neuron/presynapse.md
index c3c2001..88c6270 100644
--- a/elements/neuron/presynapse.md
+++ b/elements/neuron/presynapse.md
@@ -25,10 +25,16 @@ PRESYNAPSE
 
     // il tub serve al tuning
     _@pre_vgcc: TUB [ comprehension: PRE_VGCC, full: 10x, active: 5x, empty: 2x ]
+    _@pre_vgcc: INSTANTIATE [ tub: EXPAND [ comprehension: PRE_VGCC ], full: 10x, active: 5x, empty: 2x ]
 
   intrication:
 
     // Scope
+    !DAY: INTRICATE [ scope: &ORGANISM.!DAY ]
+
+    @AXON: EXPAND [ comprehension: AXON ]
+
+    
     !DAY: INTRICATION [ ref: &ORGANISM.!DAY ]
     !NIGHT: INTRICATION [ ref: &ORGANISM.!NIGHT ]
 
@@ -44,6 +50,9 @@ PRESYNAPSE
   instantiation:
 
     // Context
+    *VcggIncrease: INSTANTIATE [ context: new ]
+
+    
     *VcggIncrease: CONTEXT []
     *VcggDecrease: CONTEXT []
     *Ca2PrePreActiveDecrease: CONTEXT []
@@ -52,6 +61,9 @@ PRESYNAPSE
     *RrpPreActiveDecrease: CONTEXT []
 
     // Tub
+    _Ca2: INSTATIATE [ tub: new, full: 60x, act: 30x, empty: 0x ]
+
+    
     _Ca2: TUB [ full: 60x, act: 30x, empty: 0x ]
     _Rrp: TUB [ full: 30x, act: 15x, empty: 0x ]
     _Rp: TUB [ full: 30x, act: 15x, empty: 0x ]
@@ -102,6 +114,7 @@ NTreleaseLow
     hypothesis: _Ca2 mediumness AND _Rrp mediumness AND NOT _ATP empty 
       action: [ _Rrp decrease, _NT increase, _ATP decrease ]
       trace: None
+      
 ```
 
 ##### NTreleaseMedium