diff --git a/caliGraph.py b/caliGraph.py
index a39db06..e35c0a5 100755
--- a/caliGraph.py
+++ b/caliGraph.py
@@ -395,13 +395,15 @@ def removeUselessTags(G, minUnread=1):
                 G.remove_node(n)
 
 
-def curiosityReward(G, coeff=1, dTan=True):
+def curiosityReward(G, coeff=1, dTan=False):
     for n in list(G.nodes):
         node = G.nodes[n]
         if 'score' in node and 'se' in node:
             delta = node['se'] * coeff
             if dTan:
-                delta *= (1- math.tanh((node['score']/10-0.5)*7)**2)
+                delta *= (1 - math.tanh((node['score']/10-0.5)*7)**2)
+            else:
+                delta *= (1 - math.tanh(node['score']/5))
             new = max(0.0, min(10.0, node['score'] + delta))
             node['score'] = new