diff --git a/organism.md b/organism.md
index 2631ea8..0378ef1 100644
--- a/organism.md
+++ b/organism.md
@@ -17,17 +17,17 @@ ORGANISM
     organs/tectum/tectum.md
     organs/vertebrae/vertebrae.md
 
+  expansion:
+    @TECTUM: TECTUM
+    @VERTEBRAE: VERTEBRAE
+    @HYPOTHALAMUS: HYPOTHALAMUS
+
+    @: EXCITATION [out: @TECTUM.@WTA-001.@OUT-EXCI-001, in: @VERTEBREA.@WTA-001.@IN-EXCI-002]
+
   activity_scope:
     !ALWAYS # per ora solo per hypothalamus
     !NIGHT
     !DAY
   
-  expansion:
-      @TECTUM: TECTUM
-      @VERTEBRAE: VERTEBRAE
-      @HYPOTHALAMUS: HYPOTHALAMUS
-
-      @: EXCITATION [out: @TECTUM.@WTA-001.@OUT-EXCI-001, in: @VERTEBREA.@WTA-001.@IN-EXCI-002]
-
   activate: !ALWAYS
 ```