brain regions that predict and regulate risk taking

Your doctor should know if these regions were damaged as part of your stroke so they can take appropriate measures.  Mine were obviously just fine since I am still taking unacceptable risks. Not that I would have listened to my doctor.

1.  Neural Correlates of Anticipation Risk Reflect Risk Preferences

2.  http://mindblog.dericbownds.net/2012/12/brain-regions-that-predict-and-regulate.html

3.   Inactivating Anterior Insular Cortex Reduces Risk Taking