The adolescent brain week 6

Where in the brain does prediction error get signaled?

In the dopamine cells in the Ventral regimental area (VTA)

When are dopamine cells in the VTA most active?

During unexpected reward

When conditioned, what do the VTA dopamine cells react to?

The conditioned stimulus

What does the dorsal striatum do?

Respond to rewards, especially in early learning

In which types of conditioning are the dorsal and ventral parts of the striatum implicated?

Dorsal: instrumental conditioning

Ventral: Pavlovian conditioning

Which part of the brain responds to the four one of a conditioned stimulus?

The orbitifrontal cortex (OFC)

Where does reward get processed?

The mPFC and OFC

Which brain area is responsible for prediction error?

The ventral striatum (dorsal striatum early in learning

Between adults, adolescents and children, what is the positive and negative learning rate of these groups?

• Adults have a faster positive learning rate

• Adolescents learning rates are equal

• Children have a faster negative learning rate