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reward in the cortex - Coggle Diagram
reward in the cortex
Rushworth's model of goal-directed decision-making
ACC / dorsomedial PFC
comparison process
one proposal: inverse value difference signal
BOLD signal increase when difference between values decrease
ventromedial PFC / medial OFC
use of reward representations to guide behaviour
BOLD levels proportional to reward expectations at the time of decision making
alternative interpretation - value-guided decisions determined in vmPFC / mOFC
value differential signal - increases with differences in value between choices
lateral OFC
learning values associated with different goods
no spatial separation within OFC to encode positiv or negative outcomes respectively
the cerebral reward system
three-way division (Lee et al., 2007)
orbital PFC
value representation
statistical interdependence between values of alternative options
expected reward
ACC
outcome evaluation
neurons modulating activity according to outcome of an action, update decision-making strategies after error has occurred
utilities associated with different actions - action value functions nay be encoded and. updated in the ACC
lateral PFC
state representation of the environment (perceptual and abstract properties)
utilities / values associated with different states of the environment
utilities and object selection
sensory specific satiety
goal-directed decisions and personality
why is the default mode network involved?
goal-directed decision making as a two-step process?