[apatters]

I don't have a citation for this, but I read something recently about a study where people who had been introduced to the concept of decision-making fatigue experienced it, while people who weren't aware of it didn't.

The mind is a wacky thing, I think we know a lot less about it than we believe. One idea I like which seems to have some real world support is that your mental models make all the difference -- if you believe that something's hard and unpleasant, your belief becomes a self-fulfilling prophecy and you'll experience distress when you do it. If you're able to somehow reshape your beliefs, that distress may diminish. Cognitive behavioral therapy is based on this model and has a strong clinical track record.

[JangoSteve]

I had recently read that too, but it was more specifically about the idea of willpower rather than decision-making fatigue per se. Here is the article where I had seen this, though going back to it, I don't see citations to the studies it's mentioning:

> If ego depletion does turn out to be wrong, it’s striking how seemingly well-established it became before more rigorous investigations dispelled the assumptions it rests on. The story of its rise and fall also shows how faulty assumptions about willpower are not just misleading, but can be harmful. Related studies have shown that beliefs about willpower strongly influence self-control: Research subjects who believe in ego depletion (that willpower is a limited resource) show diminishing self-control over the course of an experiment, while people who don’t believe in ego depletion are steady throughout. What’s more, when subjects are manipulated into believing in ego depletion through subtly biased questionnaires at the outset of a study, their performance suffers as well.

https://getpocket.com/explore/item/against-willpower

EDIT: It appears the studies are cited at the bottom of the article.

[ghostbrainalpha]

That's very interesting. I'd love to see an experiment where people were taught THE OPPOSITE of ego depletion.

If a group of teenagers were taught that every time they exercise their willpower it becomes stronger, in a very immediate sense, would we see their self control actual improve over the course of day.

[criddell]

I certainly experience mental fatigue. I have a hard time believing that if I didn't know about it, I wouldn't experience it.

[cpoile]

We're very good at convincing ourselves of something. Can you be sure it's not just fatigue? (different from willpower fatigue)