<p><pre><code>    It makes it possible to work on stuff you don&#x27;t particularly enjoy by focussing on an expected long-term reward.
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This statement asserts causation where only correlation, particular of neural correlates, only justifies.<p>That part of the brain <i>plays a role</i> in the process of expectation — it does not, by itself, make it possible. Language, other brain functions, social inertia, etc. makes expectation possible, and there is a critical question of the content of expectation.<p>Cannabis obviously increases appetite and drives a greater motivation for munchies. Therefore, the reduction of dopeminergic brain-activity alone does not isolate cannabis as the defeater of <i>all motivation</i> but rather of certain kinds of motivation dependent on pleasure-data. Obviously what if I derive pleasure from making logical deductions or from reading? What of children who are synesthes, and who mix up stimulae as a neurotypicality modality that is atypical?