Basal Ganglia

Emo Todorov

Applied MathematicsApplied MathematicsComputer Science and Engineering

University of Washingtony g

Loops with cortex 2

Subdivisions 3

Circuit diagram 4

Recurrent connections with cortex 5

Cortical targets

Specificity or recurrent connections 6

Imbalance of excitation and inhibition 7

Parkinson’s movements are mostly normal 8

Imbalance of excitation and inhibition 9

Broad suppression and local facilitation 10

Coding of reward by dopamine neurons 11

(Schultz)

Coding of relative reward magnitude 12

Coding of reward uncertainty/risk 13

Learning effects on spatial coding 14