Friday, April 17, 2015

Modelling Biological Processes using Technology

I was recently at a lecture in which the presenter referred to the "circuitry of long term memory" and I was stuck by how often we refer to anatomy as a physical system. Talking about circuits and pathways and such leads one to think in almost mechanical terms on how our organic bodies function. It's a helpful short cut to explain things in terms that are easier for a layman to follow.

It's a practice especially prevalent in neuroscience, although that is the area with which I am most familiar. In any case, I realized that this trend has been going on for quite some time and is often dependent on the current state of our technology. Take for example how the the famous Galen of the Roman Empire thought the blood system worked. "Galen incompletely perceived the function of the heart, believing it a "productor of heat", while the function of its affluents, the arteries, was that of cooling the blood as the lungs "...fanned and cooled the heart itself". Galen thought that during dilation the arteries sucked in air, while during their contraction they discharged vapours through pores in the flesh and skin."

This pumpe system as Galen saw it, was based on the ancient Roman understanding of heating and cooling similar to their intricate water ducts system.  The technology of the day formed how people thought the human body functioned. In modern lingo, cognitive scientists often speak of 'serial/parallel processing' or 'streams of information' and this all calls to mind the inner workings of a computer.

I have to wonder, in the future when we have some new fantastic technology will we compare it to another anatomical feature of ourselves? Or is it our embodied experience that allows us to come up with such technology because we are actually mirroring it after ourselves?