I know its never good to generalize, but CTRider implies that men process serial, and women process parallel!
LOL - in my defense, I did add that it is reversed in some people. Of course, the thing I didn't say is a few people are actually wired up to do both. I'm actually one of those, which is why I'm good at my job.
In the edit room, I have to pay attention to many things: the readout from the computer that controls the equipment, the video decks, the audio board, the video switcher, the video measurement equipment, the audio meters and the digital video effects (DVE) processor.
There are two types of thinking necessary here: the serial process, as you put it, where I check everything one piece at a time before starting an edit. However, when I hit the red button to start everything, I need to pay attention to everything at once. Are the video levels consistant, is the audio still at the right level, how far into the edit am I, is the switcher ready for the next source and is the DVE running the effect properly? My hands are usually flipping from one device to another in the course of an edit, adjusting and tweaking things on the fly. I often look like a busy short-order cook during complicated events. I'm also ready to abort at any second should something go wrong.
Maybe that's why I adapted to riding as quickly as I did. While others were still shakey at the end of the rider's course I took, I felt great by the middle of the second day. There are times when everything seems to happen at once (shifting gears during acceleration, stopping while downshifting, etc) while other times things definitely happen one after another.
However, even when things seem to be happening at once, there's an order. Though it seems like your body is doing 4 things at once while shifting, it's really not. You're rolling off the throttle, squeezing the clutch, making the shift, starting to roll on, easing out the clutch and finally rolling on fully to accelerate. Though a couple of those things do overlap a bit (clutch and throttle, for instance) it's still a series of steps. If you consider the process and not the actions as a group, it's much easier to tackle.
Don't think about everything you need to do, think about the steps in order. Your mind knows what's next, you don't need to concentrate that hard to do it.
There's a set of baseball videos that gets advertised on our network a lot. In the commercial, you see some of the techniques shown in the video. You see a lot of shots of kids doing everything in steps (planting their feet, getting the glove up, catching the ball, adjusting their feet to throwing position, getting the arm back, making eye contact with the target, then throwing the ball). That may be a good technique for those that are having trouble getting things working together. Sit on the bike, with it turned off and on the stand, and count off the steps. For example, you can smooth out your shifts by practicing the steps in slow motion. Eventually, you'll have the process down so you can speed it up. Then visit that parking lot to make it fluid. Shift up, then down and repeat it over an over until it's automatic. In my BRC, I practiced shifting any time we would head over to the staging area. I'd shift up and down during those short rides as we sped up or slowed down. My shifts were very smooth by the day's end.
Tackle things slowly out of the way of traffic. This way, it's one less thing to think about out on the road.