I would argue that, while people can <i>redirect</i> the stimulation from dopaminergics to get &quot;motivated to [do] just about anything&quot;, the usual effects when the drug-user sets no specific goals are actually rather more specific.<p>Almost everyone who takes weaker amphetamines like Adderall ends up developing a cleaning compulsion; almost everyone who takes meth ends up developing a compulsion to pick at their own skin. The link I&#x27;ve seen suggested is that these are instinctual &quot;foraging&#x2F;grooming&quot; behaviors, all using the same neural hardware related to finding small imperfections&#x2F;differences in a scene.