Google seems to be using the authorship data to highlight more content from the author in specific cases.
This is how it works.
You search for something and get results connected to an author. You click that result and spend some time reading it.
You press the back button on the browser to go back to the search result page. Google notices that you spent some time reading the content so you might be interested in more content from the same author.
The search result page is automatically updated to show more content from the author of that piece of content.
Google spoke about this feature:
If a user visits an article by an author and it seems like they’d be interested in finding more articles by this author, when they click the ‘Back’ button to return to the results page, we’ll show more results by that author.