Is ADHS possibly caused by insufficiently deep propagation of anticipated reward signals in the motivational control architecture? And ADHS stimulants increase their reach by amplifying the dopaminergic receptors?
Opportunistic means short-game. As in getting drunk now vs. not being hung over tomorrow vs. not fucking up your life ten years later.
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Pressing a lever for transient electrical stimulation of nucleus accumbens —> forgoing food (unto death). We maximize expected reward. If we find ourselves in environment with low-cost access to hyper-rewards, everything else loses salience.
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I suspect that we confuse anticipated reward vs. actual reward signals. The former control behavior, the latter reinforce behavior. An anticipated reward signal may persist in the absence of actual reward, especially if it picks up enough accidental rewards
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