Lots to do with goal-directed behavior in this issue, and I have to be brief.
Janak is studying the role of amygdalal neurons in motivation and reinforcement.
These Quebec researchers are using PET to show there is conditioned dopamine release following amphetamine/environment pairings.
Finally, these researchers use fMRI to look for the neural substrates of goal directed learning (SPOILER ALERT: its the orbitofrontal cortex).
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