I thought dreams only happen durring rem and you are paralyzed durring rem stages. So you wouldn't be physically reacting to anything. I think those movements only happen in other stages of sleep
What's your source for the paralysis being complete during REM and movements happening only during other stages?
That seems suspicious to me given that a) REM is named for movement, and b) these mechanisms definitely aren't perfect, as things like night terrors and sleepwalking demonstrate.
For what it's worth, the American Kennel Club claims that dog motions do happen during REM: "We can’t know exactly what dogs dream about, but researchers have observed that certain breeds of dogs tend to perform breed-specific behavior in their sleep when the pons is inactivated. Pointers, for instance, point, and English Springer Spaniels exhibit flushing behavior during REM sleep." https://www.akc.org/expert-advice/lifestyle/why-dog-twitch-i...
I'm not saying it isn't the general case. I'm saying it isn't absolute. I also am not saying sleepwalking is part of REM; I'm saying it is an example of how mechanisms for quiescence are not perfect.
And since we're talking specifically about your claim about dogs, I'd like the dog reference specifically, please.
I did Google and found a source contradicting your claim, as well as nothing supporting it.
As I've explained, I bring those up as examples that the sleep system is not 100% reliable, so I think it's a mistake to go from the general case of "most motor control is shut down during REM sleep" to "nobody in any species ever twitches during a dream".
Given the ad hominems and the repeated misunderstanding of what seemed like a simple request to me, I don't see a lot of value in trying to explain my question to you yet again.
I know someone who sleepwalks their dreams. People are demanding sources because you are claiming "always" when the reality is almost certainly just "usually."
I'm talking about general cases, not disorders. Sleeping walking doesnt occur durring rem, Google it. there's other disorders that allow for movement durring rem. What does disorders have to do with anything?
My understanding is that dogs and some other mammals don't experience the same extent of paralysis as humans during REM sleep. I don't know the reason for it, but dogs flail in REM sleep. Scared the crap out of me when we first adopted our dog. I've only ever owned cats and I thought she was having a seizure.
