We know that CDs coordinate CPGs and affect sensory input. The goal is to understand all complex behavior and how it relates to the brain. My thoughts on CDs are not very focused, and my thoughts on how we are stepping closer to understanding behavior are random as well. I think that there are different ways to study the brain and behavior. We are obviously taking one route that not many others would necessarily take. Good for some and bad for some. At this point with CDs, I am probably a little bit unclear with certain aspects of it. For example, we did a good job figuring out the answer to one of the posed questions: to what extent is our sense of what is reality a result of CD vs sensory input. But I cannot quite grasp exactly what a CD is. CDs are signals, but from where do they come? I almost feel as though things are slightly abstract and that may be why I cannot focus so well.

Perhaps this question too: are CDs a generally well-accepted way of thinking about the brain and behavior? And their whole connection with CPGs...? I do not think that I am lost, but perhaps in need of a little bit of something. Any comments?

Hmmm. You think there is something idiosyncratic in what I'm teaching? Could be. And maybe its too abstract? Yeah, I worry about that sometimes too. So let's go back to the particulars. Swimmerets, lots of CPG's, CD's the signals from one to another that report timing of activity in one, and influence timing of activity in another. Stability of visual images: signals from CPG for eye movement that influence another part of the nervous system's interpretation of input signals. Pleurobranchea: inhibition of one sensori-motor circuit resulting from activity in a CPG. THOSE help? And, by the way, are NOT idiosyncratic: well and carefully described pieces of research, well known by most neurobiologists with interests in the areas. Now, what we MAKE of them? to try and understand behavior more generally? There's the question: how much DOES it help? And the answer? Well, that's your job (and everyone elses). PG