Definition: Given a document, generate a short title of the document. The title should convey the main idea/event/topic about which the document is being written. Note that URLs in the text have been replaced with [Link].
Input: More than 30 000 brain scientists are in Washington  D.C.  this week attending the Society for Neuroscience meeting. One of the hot topics this year is mental disorders such as depression and schizophrenia and autism.  NPR science correspondent Jon Hamilton  has just come from the meeting to talk about some of what  he 's been seeing and hearing. Hi  John. Thanks for coming.
 JON HAMILTON   BYLINE: Hi.
 HAMILTON : Twenty years ago  I'd say it didn't contribute much  but things are really changing. And I was really surprised. I was going through the abstracts to this year's meeting  and there were nearly a thousand papers that mentioned depression. There were 500 that mentioned schizophrenia or autism. And just this morning  there was this study on how - looking at the brain tissue of people with obsessive compulsive disorder and how it's different.
MARTIN: That's NPR's science correspondent Jon Hamilton. Jon  thanks so much.

In D.C. Brain Science Meets Behavioral Science To Shed Light On Mental Disorders : NPR