Breaking Habit 10/25
Wednesday, October 23, 2013
Can you control your habits?
Habits enable brain to be liberated
What part of the brain is controlling the habits?
Brain executive command center is still in control
Pavlov- classical condition
Does the dog have conscious control?
Habits encoded in dorsal striatum
Can you change or erase habits?
PTSD (fear) eliminated?
How can one regain control?
Habits become ingrained
Keep repeating behavior without reward
Recall mice in T-maze
Hear tone- turn left for choco milk, right for sugar water
Becomes a habit when behavior remains without reward
What happens when given something to make them sick instead of choco milk?
Rats approach decision point
Online control means you can tweak behavior of rat as rat is behaving
Able to control the habit (like flip a switch)
Using the medial pre-frontal cortex NOT the dorsal striatum
Smith, Virkud, Deissoroth, Graybiel Paper
"Disrupted population activity in a small region in the medial prefrontal cortex (the infralimbic
cortex). In accordance with evidence that this region is necessary for the expression of habits, we
found that this cortical disruption blocked habitual behavior"
"This immediate toggling between breaking old habits and returning to them demonstrates that