Dr. Russell Barkley

But follow that forward.

Okay, nothing's written.

About 15 years later, his student, Alexander Crichton, writes a textbook.

He also has a disorder of attention chapter, which he describes two attention disorders, one of which is ADHD.

And then things kind of get buried for a while until the late 1800s.

Fast forward up to 1900, George Still writes,

publishes three papers of his lectures in which he describes these children.

Then we have the 1918 flu epidemic in which we have a lot of kids developing ADHD who survived the flu.

But we didn't really get into what I consider the modern age of science until the 1970s.

And I just happened to be coming into the field at the moment where the match was lit.

I mean, the fuse was lit and things began to take off.

We started seeing...

Research papers, objective evaluation of these children using all kinds of measures, longitudinal studies were started.

That to me is the modern age of research.

And then by 1990, we had all the neuroimaging stuff was beginning to start.

By the year 2000, molecular genetics was kicking off and everything just exploded after that.

So we go from a couple hundred papers in 1960 to 400,000.

Wow.

as of a few years ago.

I mean, it's just startling to go to Google Scholar, enter ADHD in its precursor terms, and do the math.