Hamilton dismisses Mercedes team-mate Rosberg's F1 winning streak

Rosberg took out the last three races of the 2015 season, after Hamilton had sealed the title, and now the opening two grands prix of the new campaign.

Hamilton started the races in Australia and Bahrain on pole but lost time early in each instance, and he considers last year's three victories irrelevant.

"I couldn't care less if he won the last five," he said.

"It's only the last two. We've only had two races this season, so I don't count the last five.

"You win consecutively in a season. So five over two seasons doesn't mean anything to me psychologically.

"It's just the two races."

Hamilton finds himself 17 points behind Rosberg, but he did eventually win the 2014 title from 18 points down at the same stage.

He remains confident in what is happening on his side of the Mercedes garage, believing there is a good "foundation" in place for the year ahead.

"Generally I feel really positive, even though we have lost the first two races, because of the foundation building work my engineers and I have done," he added.

"We've been working together now for four years and the communication is better than ever.

"The strength we have within the team is stronger than ever, so I know it's going to come good.

"So that's why when you guys [the media] ask me, 'Are you worried?' I'm not because we've had two poles and we are going to get more.

"There are no real flaws in our procedure, in the way we are working, which is strong, and that's what gives me hope things will start to improve."

With three titles to his name, the 31-year-old is also backing his own mental resolve, now that he is in his 10th season in F1.

"This is a psychological game. Not a game, but it's a battle," he said.

"I guess with age and experience I'm in the most solid place I've ever been, and there's very little, if anything, that can affect that, even after this."