Bill Hartman 36:21–38:44
Well, so some of this is just straight up biology. You've got structural biases that create limits on what is possible, and other influences that alter those things that are changeable. I use dirty words because this is how it's worded in the literature. So this is not me saying this out loud, because I'm going to get a little sick to my stomach. There are structural constraints—that's what you're made of. And then there are functional constraints that change to different degrees and at different rates. A functional constraint changes very, very quickly; in some cases, instantaneously. Case in point: you're walking through the house, somebody jumps out from behind the corner and goes, 'ah,' and you go, 'ah,' right? And then your heart is immediately going really, really fast. You might break a sweat. You might react and punch somebody in the face by accident. So that was an instantaneous physiological change. Those are the ones we mess with a lot because they are changeable that quickly—that's as fast as electricity can go. Those are the things we see that when we alter muscle position, that can be very quick. Joint position can be very quick. Sensory influences can be very, very quick. Structural constraints can take a very long time or not change because there's a limit to how much they can change. So you have to look at the influences of both. The neurologic phenomenon you're talking about is relatively, and I honestly, relatively fast-changing. So if you were to try to learn to play piano, do you play piano?
structural constraintsfunctional constraintsneurologic adaptationmotor learning