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Will Wilkinson's avatar

Great stuff! I don't know if we've talked about this before, but I think ADHD basically falsifies Becker-style price theory. Classic utility needs a stable structure of preferences, such that given the representation of a range of options, those options can be ordinally ranked. The ranking is meant to reflect expectations of utility. Those expectations, if they aren't just arbitrary, are based in memory. If I prefer apples over oranges, it's because I remember how each tastes and that I enjoy apples better. How is that memory represented in the brain such that recalling the taste of an apple and an orange biases choice toward the apple? That's part of the function of the dopaminergic system. But what if that system doesn't work quite right? It can lead to a sort of affective amnesia. My understanding of the literature (and in my experience) so called "executive function" issues are partly a matter of weak embodiment of past payoffs in the motivational systems, even if there is a decent level of "intellectual" memory of past payoffs, and a decent level of "intellectual" anticipation of future payoffs. That is, in my opinion, where ADHD akrasia or mismatch between first- and second-order desires lies. It's not a matter of "will" so much as a difficulty of the brain in translating memory of experience into clear, motivationally effective forward-looking representations/expectations of relative payoffs. I think in many instances, there just isn't anything that neurologically corresponds to a coherent ordering of options by expected utility -- no utility function -- that is relatively stable across contexts. The idea that whatever you ended up doing is what you most wanted to do isn't just vacuous, it's really misleading when there actually is no fact of the matter about what you most wanted to do because you simply lacks a stable representation of "most wanted" that connects in the right way with your reward/motivation subsystems.

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Nick O'Connor's avatar

Thank you, great essay. Something that I find interesting is that ADHD has exploded as a diagnosis relatively shortly after the executive function requirements of high status jobs have greatly increased. In terms of hours worked and the intensity of work during those hours, but also (at least where I am, in the UK) in terms of record keeping requirements, real consequences for professionals for failing to follow an ever increasing number of regulations, the reduction in individual secretarial support (who needs an AI assistant if you have an actual assistant), that sort of thing.

Which might imply that back when high status jobs didn't actually require an executive function elite, then as a society we didn't notice that there was a problem - menial jobs were constantly monitored, and high status jobs could be undertaken by those with average, or even below average, executive function (as long as they had a good PA). That's now changed, and we as a society now see a problem that needs addressing.

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