Federal Reserve Chairman Ben Bernanke underlined his concerns about the fiscal cliff in a closed-door meeting with senators Wednesday.

The head of the nation’s central bank met privately with members of the Senate Finance Committee, as he continued to make his case to lawmakers that they must adjust policy before the end of the year to avert a fiscal cliff of tax hikes and spending cuts that economists argue could thrust the nation back into a recession.

Bernanke himself was mum going in and out of the meeting, but senators described the hour-long discussion on the Hill as productive, focused on the economy and short on politics.