2 ms·
That's assuming they are stateless (i.e. that they can't learn), so that the ordering of input triggering has no effect on outputs. BTW: some small spiders pre
by 6ren 14y ago
That's assuming they are stateless (i.e. that they can't learn), so that the ordering of input triggering has no effect on outputs.
BTW: some small spiders press their brains not only into their abdomens, but into their legs. e.g. http://news.nationalgeographic.com/news/2011/12/111219-spiders-big-brains-bodies-legs-webs-animals-science/ http://news.nationalgeographic.com/news/2011/12/111219-spide... Spiders gotta spin.
- CamperBob2 14y agoArguably, even human brains work that way. You can't really draw a line across part of the CNS and say "This is where the brain stops." The retina, for instance, is almost as much a part of your brain as it is your eye. By the same token, it's not always easy to classify complex movements as reflexes or thought-guided actions. Cut a chicken's head off while it's walking, and it will keep going for a while. My understanding (IANABiologist) is that the same is true for a human.
- greenyoda 14y agoResearch has also shown that the neurons in the digestive system can control it autonomously, even when disconnected from the brain: http://en.wikipedia.org/wiki/Enteric_nervous_system http://en.wikipedia.org/wiki/Enteric_nervous_system