Timeline for What brain resources are needed per limb?
Current License: CC BY-SA 3.0
35 events
| when toggle format | what | by | license | comment | |
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| Jun 16, 2020 at 11:03 | history | edited | CommunityBot |
Commonmark migration
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| May 12, 2017 at 14:55 | history | notice removed | Monica Cellio | ||
| May 8, 2017 at 13:54 | comment | added | HDE 226868♦ | Meta discussion. | |
| May 8, 2017 at 12:41 | history | edited | MolbOrg |
wrong tag, OP does not understand specifics of the neuro science and biology and failed to formulate HS question.
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| May 8, 2017 at 12:39 | comment | added | MolbOrg | @JDługosz no, answers are too good. The Q itself is not hard-science, but it is interesting Q because it generated interesting answer which I as example wish to upvote. Would be the procedure in place there would be no such problem at the moment. I'm editing out the hs tag, the question is marked wrongly. | |
| May 8, 2017 at 3:04 | review | Close votes | |||
| May 8, 2017 at 12:46 | |||||
| May 4, 2017 at 2:11 | comment | added | Schwern | @JDługosz Seems kinda petty to wipe out every answer, there's some very good stuff there. This isn't a case of people ignoring the tag; if 5 out of 5 answers with 46 votes can't answer using the desired tags, consider that the question is flawed. For example, there is no "average animal", the animal kingdom is enormous and diverse. I'd suggest instead closing the question as "too broad" and preserving the answers. Or leaving it alone, the existing science-based answers don't prevent someone from providing a hard-science answer. | |
| May 3, 2017 at 21:37 | comment | added | JDługosz | So, shall we make good on the threat to delete the positive-rep answers that don’t meet the requirement? | |
| May 3, 2017 at 21:36 | history | edited | JDługosz | CC BY-SA 3.0 |
Paste OP’s note into the post.
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| May 3, 2017 at 21:34 | comment | added | JDługosz | @Inflationary_Bubble, the OP, in a “flag” confirms that hard-science is wanted. I’ve copied that to the post. | |
| May 3, 2017 at 13:28 | comment | added | HDE 226868♦ | I've rolled back the edit to put the tag back on. I believe @JDługosz was referring to the OP, not the answerers - and at any rate, such a decision is almost always the OP's. | |
| May 3, 2017 at 13:27 | history | rollback | HDE 226868♦ |
Rollback to Revision 2
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| May 3, 2017 at 5:32 | history | edited | Schwern |
edited tags
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| May 3, 2017 at 5:29 | comment | added | JDługosz | I notice that everyone except Cort (who cited a research paper) has completely ignored the hard-science tag, and some of these are highly upvoted. If you like these answers, edit the tags to be science-based instead. | |
| May 2, 2017 at 22:13 | comment | added | John | brains do scale with size, bigger animals needs smaller proportion brains and smaller animals need larger proportional brains. the measurement is called EQ en.wikipedia.org/wiki/Encephalization_quotient | |
| May 2, 2017 at 22:11 | comment | added | John | are we talking a human level intelligent creature? It really does matter, humans are hyper-aware of their body, which takes more wiring (significantly bigger cerebellum for our mass), but gets us precise conscious control. | |
| May 2, 2017 at 20:05 | comment | added | Inflationary_Bubble | I didn't know that neurons are constantly remapped. I thought they generally do one thing at a time and only change if say, what they're controlling is lost. If I was wrong about that, yeah, the question may have a big problem. | |
| May 2, 2017 at 19:41 | answer | added | Pedro Gabriel | timeline score: 4 | |
| May 2, 2017 at 17:18 | comment | added | Solanacea | Lobsters have many legs and a tiny brain. Humans two legs and a brain larger than the entire lobster. There is no correlation between leg number and brain size. You need to be more specific. Also, look up "the motor homunculus" to see the brain area specifically devoted to controlling legs. | |
| May 2, 2017 at 16:54 | comment | added | Wayne | Pete Kirkham has an excellent answer that uses the squid as an example. I'd also ask you what you mean by "control"? A centipede has 100 limbs (more or less) and a tiny brain, but it manages to coordinate all of them to move and not trip over its own feet. Do you mean a humanoid with 8 limbs that it can individually control and task? Or a squid-like creature? Or a centipede-like creature. My initial thought would be that the more the limbs act in concert, the less "brain power" they require, while the more independently they operate, the more "brain power". | |
| May 2, 2017 at 16:39 | answer | added | Cort Ammon | timeline score: 8 | |
| May 2, 2017 at 14:35 | answer | added | Pete Kirkham | timeline score: 7 | |
| May 2, 2017 at 14:12 | answer | added | user29994 | timeline score: 3 | |
| May 2, 2017 at 12:16 | comment | added | Frostfyre | Reminder to close-voters: The problem cannot be fixed if the OP is not made aware of it. That being said, I don't see how this question is too broad. | |
| May 2, 2017 at 11:44 | comment | added | Richard Tingle | Are you sure this is the right way round, I thought that less limbs == more brain power, and in fact humans greater brain power allowed us to liberate our "front legs" for other tasks. Running on two legs sure looks a lot harder than on a spider's 8 (note the way 4 legs are always on the ground; no need to balance). I believe technically less limbs on ground at once == more brain power. | |
| May 2, 2017 at 7:58 | comment | added | Swier | For a different 'brain power per limb' example, have a look at cephalopods, they have a dedicated 'sub-brain' per arm: news.nationalgeographic.com/news/2001/09/0907_octoarm.html | |
| May 2, 2017 at 7:50 | comment | added | Konchog | What do you mean by 'brain' ? A vast amount of the sensor/control/neurological system for limbs happens outside the head. | |
| May 2, 2017 at 7:05 | answer | added | Schwern | timeline score: 34 | |
| May 2, 2017 at 5:04 | review | Close votes | |||
| May 2, 2017 at 12:07 | |||||
| May 2, 2017 at 4:44 | comment | added | JDługosz | @Aify I think there is lots of spexific data on the motor control area a d sensory areas, in several species. A general ballpark will not vary by more than a percentage of its nominal value, I would think. | |
| May 2, 2017 at 4:42 | comment | added | JDługosz | I edited the title to be the question. My first thought on your original was that it would be about control over prothetics. In general, don’t use a general topic as the title — use the question. | |
| May 2, 2017 at 4:39 | history | edited | JDługosz | CC BY-SA 3.0 |
deleted 33 characters in body; edited title
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| May 2, 2017 at 4:38 | comment | added | Aify | Have you considered that maybe there's no data because the question is impossible to answer? First consider that animal size and brain size are not related, then consider that neurons are constantly remapped, even when limbs are cut off. Finally, consider that each person utilizes their brain differently, with each brain likely using a different amount or percentage of neurons for each limb; an example would be people that have heightened hearing and smell due to neurons being remapped. I don't think there are any numbers because it's impossible to calculate. | |
| May 2, 2017 at 4:37 | history | notice added | JDługosz | Hard Science | |
| May 2, 2017 at 4:21 | history | asked | Inflationary_Bubble | CC BY-SA 3.0 |