view the rest of the comments
News
Welcome to the News community!
Rules:
1. Be civil
Attack the argument, not the person. No racism/sexism/bigotry. Good faith argumentation only. This includes accusing another user of being a bot or paid actor. Trolling is uncivil and is grounds for removal and/or a community ban. Do not respond to rule-breaking content; report it and move on.
2. All posts should contain a source (url) that is as reliable and unbiased as possible and must only contain one link.
Obvious right or left wing sources will be removed at the mods discretion. We have an actively updated blocklist, which you can see here: https://lemmy.world/post/2246130 if you feel like any website is missing, contact the mods. Supporting links can be added in comments or posted seperately but not to the post body.
3. No bots, spam or self-promotion.
Only approved bots, which follow the guidelines for bots set by the instance, are allowed.
4. Post titles should be the same as the article used as source.
Posts which titles don’t match the source won’t be removed, but the autoMod will notify you, and if your title misrepresents the original article, the post will be deleted. If the site changed their headline, the bot might still contact you, just ignore it, we won’t delete your post.
5. Only recent news is allowed.
Posts must be news from the most recent 30 days.
6. All posts must be news articles.
No opinion pieces, Listicles, editorials or celebrity gossip is allowed. All posts will be judged on a case-by-case basis.
7. No duplicate posts.
If a source you used was already posted by someone else, the autoMod will leave a message. Please remove your post if the autoMod is correct. If the post that matches your post is very old, we refer you to rule 5.
8. Misinformation is prohibited.
Misinformation / propaganda is strictly prohibited. Any comment or post containing or linking to misinformation will be removed. If you feel that your post has been removed in error, credible sources must be provided.
9. No link shorteners.
The auto mod will contact you if a link shortener is detected, please delete your post if they are right.
10. Don't copy entire article in your post body
For copyright reasons, you are not allowed to copy an entire article into your post body. This is an instance wide rule, that is strictly enforced in this community.
Okay, source it if you've got it, because the idea that a single study ran out of funding at 25 and that's where the number comes from is such an odd suggestion, as though no one else has studied the brain's development and neuroscientists everywhere just shrugged and thought, "if only the funding were there."
Here's a well-sourced article that concludes the brain continues to develop well into the mid-20's.
While the brain will always continue to develop and grow, due to neuroplasticity, the concern is whether or not the prefrontal cortex, the part of the brain responsible for long-term decision making, is properly developed. This development continues into the mid-20's and is well-documented.
Here's a 2022 study where they looked at over 100,000 brain scans from people 110 days old to over 100 years old used to draw and affirm similar conclusions.
While 25 isn't magic number, as everyone's brains develop on different timelines, it is a rational and reasonable landmark that can be reliably used for broad discussions.
Here's more from the National Institute of Mental Health and Penn Medicine.
Looking through it now, I believe the conversation I was in was referencing this: https://www.nature.com/articles/npp2014236 , specifically because it's not a random group of scans. It's a rather ambitious study, from 1989, and is, as it was told to me, where the journos got ahold of the "25" number. In fact, the first article you link's sources seem to all have the 1999 version as their first reference, probably because they're all pre-2014. No mention of money in the paper, obviously, but it does talk of the study as "ongoing", and I couldn't find a newer followup, so, uh, yeah.
As I was digging, though, I ran into this: https://www.nature.com/articles/s41467-023-42540-8 , so the number you go with, if it even makes sense to go with a number, is still a matter of what you want to measure, I'd say.